101
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Kim J, Chae S, Gu D, Hong S, Lee SH, Kim HJ, Suh H. Syntheses and Properties of Conjugated Polymers Containing Thieno[2,3‐b]indole with Different Electron‐deficient Units. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Juae Kim
- Department of Chemistry and Chemistry Institute for Functional MaterialsPusan National University Busan 46241 Republic of Korea
| | - Sangmin Chae
- Department of Organic Material Science and EngineeringPusan National University Busan 46241 Republic of Korea
| | - Dasom Gu
- Department of Chemistry and Chemistry Institute for Functional MaterialsPusan National University Busan 46241 Republic of Korea
| | - Seungyeon Hong
- Department of Organic Material Science and EngineeringPusan National University Busan 46241 Republic of Korea
| | - Sung Hun Lee
- Department of Organic Material Science and EngineeringPusan National University Busan 46241 Republic of Korea
| | - Hyo Jung Kim
- Department of Organic Material Science and EngineeringPusan National University Busan 46241 Republic of Korea
| | - Hongsuk Suh
- Department of Chemistry and Chemistry Institute for Functional MaterialsPusan National University Busan 46241 Republic of Korea
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102
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Farsinia F, Dehestani M, Molaei M. Investigation of structural stability, electronic properties of S-doped CdSe using ab initio calculations. Struct Chem 2019. [DOI: 10.1007/s11224-019-01449-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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103
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Karpach PV, Scherbovich AA, Vasilyuk GT, Stsiapura VI, Ayt AO, Barachevsky VA, Tuktarov АR, Khuzin AA, Maskevich SA. Photoinduced Reversible Modulation of Fluorescence of CdSe/ZnS Quantum Dots in Solutions with Diarylethenes. J Fluoresc 2019; 29:1311-1320. [PMID: 31713768 DOI: 10.1007/s10895-019-02455-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 10/31/2019] [Indexed: 11/28/2022]
Abstract
Steady-state absorption and fluorescence spectra, fluorescence decay kinetics of CdSe/ZnS quantum dots (QD) with photochromic diarylethenes (DAE) in toluene have been studied. Two kinds of QDs emitting at 525 and 600 nm were investigated and DAE were selected to ensure good overlap of their photoinduced absorption band with QDs emission spectra. It has been found that photochromic molecules form complexes with QD which results in partial fluorescence quenching. A reversible modulation of QDs emission intensity which correlates with magnitude of transient photoinduced absorption band of the diarylethenes during photochromic transformations has been demonstrated.
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Affiliation(s)
- P V Karpach
- Yanka Kupala State University of Grodno, Grodno, Belarus
| | | | - G T Vasilyuk
- Yanka Kupala State University of Grodno, Grodno, Belarus
| | - V I Stsiapura
- Yanka Kupala State University of Grodno, Grodno, Belarus.
| | - A O Ayt
- Photochemistry Center, FSRC "Crystallography and Photonics", RAS, Moscow, Russia
| | - V A Barachevsky
- Photochemistry Center, FSRC "Crystallography and Photonics", RAS, Moscow, Russia
| | - А R Tuktarov
- Institute of Petrochemistry and Catalysis, RAS, Ufa, Russia
| | - A A Khuzin
- Institute of Petrochemistry and Catalysis, RAS, Ufa, Russia
| | - S A Maskevich
- Belarusian State University, ISEI BSU, Minsk, Belarus
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104
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Akagi K. Interdisciplinary Chemistry Based on Integration of Liquid Crystals and Conjugated Polymers: Development and Progress. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190092] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Kazuo Akagi
- Department of Polymer Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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105
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Procházková L, Vaněček V, Čuba V, Pjatkan R, Martinez-Turtos R, Jakubec I, Buryi M, Omelkov S, Auffray E, Lecoq P, Mihóková E, Nikl M. Core-shell ZnO:Ga-SiO 2 nanocrystals: limiting particle agglomeration and increasing luminescence via surface defect passivation. RSC Adv 2019; 9:28946-28952. [PMID: 35528437 PMCID: PMC9071835 DOI: 10.1039/c9ra04421c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 09/06/2019] [Indexed: 12/02/2022] Open
Abstract
Heat treatment is needed to increase the luminescence intensity of ZnO:Ga particles, but it comes at the cost of higher particle agglomeration. Higher agglomeration results in low transparency of scintillating powder when embedded in a matrix and constitutes one of the biggest disadvantages, besides low light yield and low stopping power, of ZnO:Ga powder. Limiting ZnO:Ga particle size is therefore a key step in order to prepare highly luminescent and transparent composites with prospects for optical applications. In this work, SiO2 coating was successfully used to improve luminescence intensity or limitation of crystallite size growth during further annealing. Furthermore, ZnO:Ga and ZnO:Ga-SiO2 core-shells were embedded in a polystyrene matrix.
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Affiliation(s)
- Lenka Procházková
- Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Břehová 7 115 19 Czech Republic
- Institute of Physics of the AS CR v.v.i, Cukrovarnická 10 Prague 6 Czech Republic
| | - Vojtěch Vaněček
- Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Břehová 7 115 19 Czech Republic
| | - Václav Čuba
- Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Břehová 7 115 19 Czech Republic
| | - Radek Pjatkan
- NUVIA a.s. Trojanova street 117 278 01 Kralupy nad Vltavou Czech Reublic
| | | | - Ivo Jakubec
- Institute of Inorganic Chemistry of the Czech Academy of Sciences Řež 250 68 Husinec-Řež 1001 Czech Republic
| | - Maksym Buryi
- Institute of Physics of the AS CR v.v.i, Cukrovarnická 10 Prague 6 Czech Republic
| | - Sergey Omelkov
- Institute of Physics, University of Tartu W. Ostwaldi 1 50411 Tartu Estonia
| | | | | | - Eva Mihóková
- Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Břehová 7 115 19 Czech Republic
- Institute of Physics of the AS CR v.v.i, Cukrovarnická 10 Prague 6 Czech Republic
| | - Martin Nikl
- Institute of Physics of the AS CR v.v.i, Cukrovarnická 10 Prague 6 Czech Republic
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106
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Mamon F, Fajgar R, Jandova V, Koci E, Jakubec I, Zhigunov A, Brovdyova T, Bakardjieva S. TiO2 microrods with stacked 3D nanovoids for photoelectrochemical water splitting. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2018-1116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Abstract
This paper reports an original nonstandard green concept to obtain TiO2 microrods with polyhedral densely stacked 3D nanovoids prepared via the heat treatment of a hydrogen titanate. The intermediate hydrogen titanate was synthesized by a solid-liquid-solid (SLS) route from an ammonia-saturated aqueous solution of TiOSO4 at 0 °C. The effect of the postgrowth thermal annealing procedure to remove ice (water) and the proposed mechanism to explain the underlying transitions from the intermediate precursor to nanostructured TiO2 microrods with stacked 3D nanovoids were investigated. The small-angle X-ray scattering (SAXS) analysis indicates that at temperatures above 500 °C, the release of confined ice (water) takes place, which leads to the creation of self-assembled polyhedral nanovoids open to the surface. Their size ranges from 5 to 78 nm in both length and width, with a depth of ~3.88 nm. The first use of these stacked 1D TiO2 microrods as the working electrode in a photoelectrochemical (PEC) cell for water splitting is demonstrated. The estimated value of ζ-potential depends on both annealing temperature and crystallite size. Anatase sample 1D TiO/800 with ζ-potential (−29.1) mV and average crystallite size ~68 nm was observed to be highly stable in aqueous suspension. The SLS method yields low-cost 1D TiO2 materials possessing high photoreactivity with water. The PEC measurements indicate that three-dimensional hollow structures with a controlled geometry via patterned 1D TiO2 surface are promising materials for hydrogen generation from water splitting.
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Affiliation(s)
- Filip Mamon
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , 205 68 Rez , Czech Republic
| | - Radek Fajgar
- Institute of Chemical Process and Fundamentals of the Czech Academy of Sciences , Rozvojova 2/135 , 165 02 Prague , Czech Republic
| | - Vera Jandova
- Institute of Chemical Process and Fundamentals of the Czech Academy of Sciences , Rozvojova 2/135 , 165 02 Prague , Czech Republic
| | - Eva Koci
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , 205 68 Rez , Czech Republic
| | - Ivo Jakubec
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , 205 68 Rez , Czech Republic
| | - Alexander Zhigunov
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences , Heyrovskeho nam.1888/2 , 162 00 Prague , Czech Republic
| | - Tatjana Brovdyova
- Faculty of Mechanical Engineering , Jan Evangelista Purkyne University , Pasteurova 3334/7 , 400 96 Usti nad Labem , Czech Republic
| | - Snejana Bakardjieva
- Institute of Inorganic Chemistry of the Czech Academy of Sciences , 205 68 Rez , Czech Republic
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107
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Ujjain SK, Bhatia R, Ahuja P. Aziridine-functionalized graphene: Effect of aromaticity for aryl functional groups on enhanced power conversion efficiency of organic photovoltaic cells. JOURNAL OF SAUDI CHEMICAL SOCIETY 2019. [DOI: 10.1016/j.jscs.2018.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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108
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Yun H, Paik T. Colloidal Self-Assembly of Inorganic Nanocrystals into Superlattice Thin-Films and Multiscale Nanostructures. NANOMATERIALS 2019; 9:nano9091243. [PMID: 31480547 PMCID: PMC6780213 DOI: 10.3390/nano9091243] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/19/2019] [Accepted: 08/26/2019] [Indexed: 11/16/2022]
Abstract
The self-assembly of colloidal inorganic nanocrystals (NCs) offers tremendous potential for the design of solution-processed multi-functional inorganic thin-films or nanostructures. To date, the self-assembly of various inorganic NCs, such as plasmonic metal, metal oxide, quantum dots, magnetics, and dielectrics, are reported to form single, binary, and even ternary superlattices with long-range orientational and positional order over a large area. In addition, the controlled coupling between NC building blocks in the highly ordered superlattices gives rise to novel collective properties, providing unique optical, magnetic, electronic, and catalytic properties. In this review, we introduce the self-assembly of inorganic NCs and the experimental process to form single and multicomponent superlattices, and we also describe the fabrication of multiscale NC superlattices with anisotropic NC building blocks, thin-film patterning, and the supracrystal formation of superlattice structures.
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Affiliation(s)
- Hongseok Yun
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea.
| | - Taejong Paik
- Department of Integrative Engineering, Chung-Ang University, Seoul 06973, Korea.
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109
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Chang BS, Thomas B, Chen J, Tevis ID, Karanja P, Çınar S, Venkatesh A, Rossini AJ, Thuo MM. Ambient synthesis of nanomaterials by in situ heterogeneous metal/ligand reactions. NANOSCALE 2019; 11:14060-14069. [PMID: 31313799 DOI: 10.1039/c9nr05448k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Coordination polymers are ideal synthons in creating high aspect ratio nanostructures, however, conventional synthetic methods are often restricted to batch-wise and costly processes. Herein, we demonstrate a non-traditional, frugal approach to synthesize 1D coordination polymers by in situ etching of zerovalent metal particle precursors. This procedure is denoted as the heterogeneous metal/ligand reaction and was demonstrated on Group 13 metals as a proof of concept. Simple carboxylic acids supply the etchant protons and ligands for metal ions (conjugate base) in a 1 : 1 ratio. This scalable reaction produces a 1D polymer that assembles into high-aspect ratio 'nanobeams'. We demonstrate control over crystal structure and morphology by tuning the: (i) metal center, (ii) stoichiometry and (iii) structure of the ligands. This work presents a general scalable method for continuous, heat free and water-based coordination polymer synthesis.
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Affiliation(s)
- Boyce S Chang
- Department of Materials Science and Engineering, Iowa State University, 2220 Hoover Hall, Ames, IA 50011, USA. and US DOE Ames Laboratory, Ames, Iowa, USA50011.
| | - Brijith Thomas
- US DOE Ames Laboratory, Ames, Iowa, USA50011. and Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, IA 50011, USA
| | - Jiahao Chen
- Department of Materials Science and Engineering, Iowa State University, 2220 Hoover Hall, Ames, IA 50011, USA.
| | - Ian D Tevis
- Department of Materials Science and Engineering, Iowa State University, 2220 Hoover Hall, Ames, IA 50011, USA.
| | - Paul Karanja
- Department of Materials Science and Engineering, Iowa State University, 2220 Hoover Hall, Ames, IA 50011, USA.
| | - Simge Çınar
- Department of Materials Science and Engineering, Iowa State University, 2220 Hoover Hall, Ames, IA 50011, USA.
| | - Amrit Venkatesh
- US DOE Ames Laboratory, Ames, Iowa, USA50011. and Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, IA 50011, USA
| | - Aaron J Rossini
- US DOE Ames Laboratory, Ames, Iowa, USA50011. and Department of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, IA 50011, USA
| | - Martin M Thuo
- Department of Materials Science and Engineering, Iowa State University, 2220 Hoover Hall, Ames, IA 50011, USA.
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110
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Oh S, Yang M, Kang S, Chung SH, Bouffard J, Hong S, Park SJ. Binary Self-Assembly of Conjugated Block Copolymers and Quantum Dots at the Air-Liquid Interface into Ordered Functional Nanoarrays. ACS APPLIED MATERIALS & INTERFACES 2019; 11:28538-28545. [PMID: 31290318 DOI: 10.1021/acsami.9b08892] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Controlling the nanoscale morphology of conducting polymer/nanoparticle hybrid films is a highly desired but challenging task. Here, we report that such functional hybrid films with unprecedented structural order can be formed through the self-assembly of conjugated block copolymers and CdSe quantum dots at the air-water interface. The one-step assembly of quantum dots and block copolymers composed of polythiophene and polyethylene glycol (P3HT-b-PEG) at the fluidic interface generated a highly ordered assembly structure of P3HT nanowires and one-dimensional quantum dot arrays. Structure analyses revealed a unique self-assembly behavior and size dependency, which are distinct from the conventional self-assembly of coil-type polymers on solid substrates. Interestingly, hydrophobic quantum dots reside at the interface between P3HT and PEG domains without disrupting the P3HT packing structure, which is advantageous for the optoelectronic properties. Furthermore, large particles bridge the P3HT nanowires at both ends, while small particles decorate each P3HT/PEG interfaces, thus forming tight p-n junctions for a broad size range of nanoparticles. The nanoparticle-incorporated hybrid films showed more than an order of magnitude higher photocurrent and light sensitivity compared to polymer-only films, consistent with the assembly structure with close contact between the organic and inorganic semiconductors.
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Affiliation(s)
- Saejin Oh
- Department of Chemistry and Nanoscience , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu , Seoul 03760 , Korea
| | - Myungjae Yang
- Department of Physics and Astronomy and Institute of Applied Physics , Seoul National University , Seoul 151-747 , Korea
| | - Seulki Kang
- Department of Chemistry and Nanoscience , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu , Seoul 03760 , Korea
| | - Sung-Hee Chung
- Department of Chemistry and Nanoscience , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu , Seoul 03760 , Korea
| | - Jean Bouffard
- Department of Chemistry and Nanoscience , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu , Seoul 03760 , Korea
| | - Seunghun Hong
- Department of Physics and Astronomy and Institute of Applied Physics , Seoul National University , Seoul 151-747 , Korea
| | - So-Jung Park
- Department of Chemistry and Nanoscience , Ewha Womans University , 52 Ewhayeodae-gil, Seodaemun-gu , Seoul 03760 , Korea
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111
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Tripathi ASM, Sadakata S, Gupta RK, Nagamatsu S, Ando Y, Pandey SS. Implication of Molecular Weight on Optical and Charge Transport Anisotropy in PQT-C12 Films Fabricated by Dynamic FTM. ACS APPLIED MATERIALS & INTERFACES 2019; 11:28088-28095. [PMID: 31309839 DOI: 10.1021/acsami.9b06568] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Large area (>20 cm × 2 cm)-oriented thin films of PQT-C12 with varying molecular weight and polydispersity index (PDI) were fabricated by the ribbon-shaped floating film transfer method aiming toward their application as an active semiconductor element of organic field effect transistors (OFETs). Investigation on the influence of the molecular weight and PDI upon the extent of molecular alignment and anisotropic charge transport was systematically carried out. It has been demonstrated that high molecular weight in combination with low PDI not only leads to a very high optical anisotropy >10 but also high charge carrier anisotropy with a hole mobility of about 0.07 cm2/V·s for OFETs using parallel-oriented PQT-C12 thin films. Such a structure-property correlation is highly beneficial for the development of high performance organic electronic devices by synergistic and amicable tuning of the optoelectronic anisotropies and polymer synthetic variables.
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Affiliation(s)
- Atul S M Tripathi
- Graduate School of Life Science and Systems Engineering , Kyushu Institute of Technology , 2-4 Hibikino , Wakamatsu, Kitakyushu 808-0196 , Japan
| | - Shifumi Sadakata
- Graduate School of Life Science and Systems Engineering , Kyushu Institute of Technology , 2-4 Hibikino , Wakamatsu, Kitakyushu 808-0196 , Japan
| | - Rakesh Kumar Gupta
- Graduate School of Life Science and Systems Engineering , Kyushu Institute of Technology , 2-4 Hibikino , Wakamatsu, Kitakyushu 808-0196 , Japan
| | - Shuichi Nagamatsu
- Department of Computer Science and Electronics , Kyushu Institute of Technology , 680-4 Kawazu , Iizuka 820-8502 , Japan
| | - Yoshito Ando
- Graduate School of Life Science and Systems Engineering , Kyushu Institute of Technology , 2-4 Hibikino , Wakamatsu, Kitakyushu 808-0196 , Japan
| | - Shyam S Pandey
- Graduate School of Life Science and Systems Engineering , Kyushu Institute of Technology , 2-4 Hibikino , Wakamatsu, Kitakyushu 808-0196 , Japan
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112
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Tangeysh B, Odhner JH, Wang Y, Wayland BB, Levis RJ. Formation of Copper(I) Oxide- and Copper(I) Cyanide-Polyacetonitrile Nanocomposites through Strong-Field Laser Processing of Acetonitrile Solutions of Copper(II) Acetate Dimer. J Phys Chem A 2019; 123:6430-6438. [PMID: 31266303 DOI: 10.1021/acs.jpca.9b04206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Irradiation studies of acetonitrile solutions of copper(II) acetate dimer ([Cu(OAc)2]2) using high energy, simultaneously spatially and temporally focused (SSTF) ultrashort laser pulses are reported. Under ambient conditions, irradiation for relatively short periods of time (10-20 s) selectively produces relatively small, narrowly size-dispersed (3.5 ± 0.7 nm) copper(I) oxide nanoparticles (Cu2O NPs) embedded in CuCN-polyacetonitrile polymers generated in situ by the laser. The Cu2O NPs become embedded in a CuCN-polyacetonitrile network as they form, stabilizing them and protecting the air-sensitive material from oxygen. Laser irradiation of acetonitrile causes fragmentation into transient radicals that initiate and terminate polymerization of acetonitrile. Control and mechanistic investigations reveal that HCN formed during laser irradiation reacts rapidly to reduce the Cu(II) centers in [Cu(OAc)2]2, leading to the formation of CuCN or, in the presence of water, Cu2O nanoparticles that bind and cross-link CuCN-polyacetonitrile chains. The acetate-bridged Cu(II) dimer unit is a required structural feature that functions to preorganize and direct the Cu(II) reduction and selective formation of CuCN and Cu2O nanoparticles. This study illustrates how rapid deposition of energy using shaped, ultrashort laser pulses can initiate multiple photolytic and thermal processes that lead to the selective formation of composite nanoparticle/polymer materials for applications in electronics and catalysis.
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Affiliation(s)
- Behzad Tangeysh
- Department of Chemistry and the Center for Advanced Photonics Research , Temple University , Philadelphia , Pennsylvania 19122 , United States
| | - Johanan H Odhner
- Department of Chemistry and the Center for Advanced Photonics Research , Temple University , Philadelphia , Pennsylvania 19122 , United States
| | - Yu Wang
- Department of Chemistry and the Center for Advanced Photonics Research , Temple University , Philadelphia , Pennsylvania 19122 , United States
| | - Bradford B Wayland
- Department of Chemistry and the Center for Advanced Photonics Research , Temple University , Philadelphia , Pennsylvania 19122 , United States
| | - Robert J Levis
- Department of Chemistry and the Center for Advanced Photonics Research , Temple University , Philadelphia , Pennsylvania 19122 , United States
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113
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Gao Q, Li K, Zhao L, Zhang K, Li H, Zhang J, Liu Q. Wide-Range Band-Gap Tuning and High Electrical Conductivity in La- and Pb-Doped SrSnO 3 Epitaxial Films. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25605-25612. [PMID: 31264825 DOI: 10.1021/acsami.9b07819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Perovskite oxide SrSnO3 has attracted considerable attentions recently due to its high carrier mobility and high transparency. Here, we experimentally and theoretically investigated the effects of La and Pb doping on the microstructure, band gaps, and electrical properties of SrSnO3 epitaxial thin films. X-ray diffraction analysis showed that the in-plane lattice constants of Pb-doped SrSnO3 (SrSn1-xPbxO3, x = 0-1, SSPO) films increased from 4.053 to 4.178 Å with the increase in Pb doping content. High-resolution transmission electron microscopy images revealed that SSPO films were coherently grown on LaAlO3(001) substrates. The optical band-gap values were considerably decreased gradually from 4.43 to 2.16 eV with Pb doping content while maintaining high optical transmittance in the visible wavelength range. Density functional theory calculations showed that the narrowing of band gap was attributed to a finite overlap between Pb 6s and Sn 5s orbitals around the bottom of the conduction band. As doping with 5% La in SSPO films, the electrical conductivity was improved greatly, and transport properties were investigated through temperature-dependent resistivity and Hall measurements. A lowest room-temperature resistivity of 0.5 mΩ cm and a maximum mobility of 39.9 cm2/Vs were observed in 5% La in the SSPO film at x = 1. Such wide-range tuning of the band gaps and excellent electrical properties of La- and Pb-doped SrSnO3 epitaxial thin films may provide promising applications in optoelectronic devices.
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Affiliation(s)
| | | | | | - Kaiyin Zhang
- School of Physics and Electronic Engineering , Fuyang Normal University , Fuyang 236037 , People's Republic of China
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114
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Chen YA, Chou KH, Kuo YY, Wu CY, Hsiao PW, Chen PW, Yuan SH, Wuu DS. Formation of ZnO/Zn 0.5Cd 0.5Se Alloy Quantum Dots in the Presence of High Oleylamine Contents. NANOMATERIALS 2019; 9:nano9070999. [PMID: 31373313 PMCID: PMC6669603 DOI: 10.3390/nano9070999] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 06/27/2019] [Accepted: 07/08/2019] [Indexed: 11/16/2022]
Abstract
To the best of our knowledge, this report presents, for the first time, the schematic of the possible chemical reaction for a one-pot synthesis of Zn0.5Cd0.5Se alloy quantum dots (QDs) in the presence of low/high oleylamine (OLA) contents. For high OLA contents, high-resolution transmission electron microscopy (HRTEM) results showed that the average size of Zn0.5Cd0.5Se increases significantly from 4 to 9 nm with an increasing OLA content from 4 to 10 mL. First, [Zn(OAc)2]–OLA complex can be formed by a reaction between Zn(OAc)2 and OLA. Then, Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) data confirmed that ZnO is formed by thermal decomposition of the [Zn(OAc)2]–OLA complex. The results indicated that ZnO grew on the Zn0.5Cd0.5Se surface, thus increasing the particle size. For low OLA contents, HRTEM images were used to estimate the average sizes of the Zn0.5Cd0.5Se alloy QDs, which were approximately 8, 6, and 4 nm with OLA loadings of 0, 2, and 4 mL, respectively. We found that Zn(OAc)2 and OLA could form a [Zn(OAc)2]–OLA complex, which inhibited the growth of the Zn0.5Cd0.5Se alloy QDs, due to the decreasing reaction between Zn(oleic acid)2 and Se2−, which led to a decrease in particle size.
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Affiliation(s)
- Yi-An Chen
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
- Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung 40227, Taiwan
| | - Kuo-Hsien Chou
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Yi-Yang Kuo
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Cheng-Ye Wu
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Po-Wen Hsiao
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Po-Wei Chen
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Shuo-Huang Yuan
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan
| | - Dong-Sing Wuu
- Department of Materials Science and Engineering, National Chung Hsing University, 145 Xingda Road, Taichung 40227, Taiwan.
- Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung 40227, Taiwan.
- Research Center for Sustainable Energy and Nanotechnology, National Chung Hsing University, Taichung 40227, Taiwan.
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115
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Gao J, Kidon L, Rabani E, Alivisatos AP. Ultrahigh Hot Carrier Transient Photocurrent in Nanocrystal Arrays by Auger Recombination. NANO LETTERS 2019; 19:4804-4810. [PMID: 31244231 DOI: 10.1021/acs.nanolett.9b02374] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this report, we show that a new mechanism for carrier transport in solution-processed colloidal semiconductor nanocrystal arrays exists at high excitation intensity on ultrafast time scales and allows for facile intrinsic transport between as-prepared nanocrystals over long distances. By combining a high speed photoconductive switch with an ultrafast laser excitation in a sub-40 ps photoconductor, we observed transient photocurrents with peak densities of 3 × 104 - 106 mA/cm2 in self-assembled PbSe nanocrystals capped with long native oleic acid ligands. The ratio between the transient photocurrent peak and the steady-state dark current is 10 orders of magnitude. The transient mobility at the peak current is estimated to range between 0.5-17.5 cm2/(V s) for the various nanocrystal sizes studied, which is 6 to 9 orders of magnitude higher than the dark current steady-state mobility in PbSe, CdSe, and CdTe nanocrystals capped with native ligands. The results are analyzed using a kinetic model which attributes the ultrahigh transient photocurrent to multiple photogenerated excitons undergoing on-particle Auger recombination, followed by rapid tunneling at high energies. This mechanism is demonstrated for a wide range of PbSe nanocrystals sizes (diameters from 2.7 to 7.1 nm) and experimental parameters. Our observations indicate that native ligand-capped nanocrystal arrays are promising for optoelectronics applications wherein multiple carriers are photoinjected to interband states.
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Affiliation(s)
| | - Lyran Kidon
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Eran Rabani
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
- The Raymond and Beverly Sackler Center for Computational Molecular and Materials Science , Tel Aviv University , Tel Aviv , Israel 69978
| | - A Paul Alivisatos
- Materials Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
- Kavli Energy NanoScience Institute, University of California, Berkeley and Lawrence Berkeley National Lab , Berkeley , California 94720 , United States
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116
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Zhao H, Li Y, Diao L, Sun C, Shi Y. Reevaluating the effects of reorganization energy on electron transfer rate for quantum dot-molecular acceptor complexes in different solvents. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 218:237-242. [PMID: 31003048 DOI: 10.1016/j.saa.2019.04.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/28/2019] [Accepted: 04/09/2019] [Indexed: 06/09/2023]
Abstract
The electron transfer (ET) rate in quantum dot (QD)-molecular acceptor systems is dependent upon system reorganization energy (RE, λ), which comprises contributions from solvent (λ0) and reactants (λi). However, to date, the effect of λi on ET rate has been largely ignored. Herein, the ET from CdSe/ZnS QDs to 1-chloroanthraquinone (1-CAQ) in different solvents was investigated using ultrafast transient absorption spectroscopy as a means to evaluate the effect of λi on ET rate. The results revealed that ET rate is strongly solvent dependent. Amazingly, the ET rate in carbon disulfide is 300-times higher than that in n-dodecane. Theoretical calculations indicated that the λi contribution from 1-CAQ alone accounts for a large proportion of system RE and varies greatly in different solvents. Furthermore, the ET rate increases first and, then, decreases with the λ value in different solvents. This trend was interpreted consistently in terms of Marcus theory by adding λi to λ for different solvents. Thus, our present work demonstrates that the RE of the acceptor molecule has a non-negligible effect on ET rate, providing new insight into the mechanisms of ET process and for the development of QD-based devices.
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Affiliation(s)
- Huifang Zhao
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
| | - You Li
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
| | - Lihe Diao
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
| | - Chaofan Sun
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
| | - Ying Shi
- Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China.
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117
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Liu Y, Widmer-Cooper A. A versatile simulation method for studying phase behavior and dynamics in colloidal rod and rod-polymer suspensions. J Chem Phys 2019; 150:244508. [PMID: 31255071 DOI: 10.1063/1.5096193] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Here, we present an implicit-solvent model for dynamic simulations of hard-rod and rod-polymer suspensions. Individual rods are represented by a rigid linear chain consisting of overlapping spheres which interact through a pseudohard-core potential based on the cut-and-shifted Mie (generalized Lennard-Jones) potential with exponents (50, 49). In the rod-polymer suspensions, the polymers are modeled as freely interpenetrable spheres with respect to each other, while there is the pseudohard-core repulsion between the polymer and rod spheres. Dynamic simulations with this model are carried out with a dissipative particle dynamics (DPD) thermostat-each sphere is put in a larger DPD sphere and thus interacts with others via additional pairwise frictional and random forces-which captures the effects of Brownian forces due to the solvent while conserving local momentum. The phase behavior of these models, obtained from continuous compression and expansion simulations, reproduces previous predictions based on theoretical calculations and Monte Carlo simulations. Our method is suited to study dynamic processes in these suspensions, including nucleation and self-assembly, and can be readily extended to colloidal particles of different shapes and chemistry.
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Affiliation(s)
- Yawei Liu
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Asaph Widmer-Cooper
- ARC Centre of Excellence in Exciton Science, School of Chemistry, University of Sydney, Sydney, New South Wales 2006, Australia
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118
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Adam R, Mon M, Greco R, Kalinke LHG, Vidal-Moya A, Fernandez A, Winpenny REP, Doménech-Carbó A, Leyva-Pérez A, Armentano D, Pardo E, Ferrando-Soria J. Self-Assembly of Catalytically Active Supramolecular Coordination Compounds within Metal-Organic Frameworks. J Am Chem Soc 2019; 141:10350-10360. [PMID: 31194534 DOI: 10.1021/jacs.9b03914] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Supramolecular coordination compounds (SCCs) represent the power of coordination chemistry methodologies to self-assemble discrete architectures with targeted properties. SCCs are generally synthesized in solution, with isolated fully coordinated metal atoms as structural nodes, thus severely limited as metal-based catalysts. Metal-organic frameworks (MOFs) show unique features to act as chemical nanoreactors for the in situ synthesis and stabilization of otherwise not accessible functional species. Here, we present the self-assembly of PdII SCCs within the confined space of a pre-formed MOF (SCCs@MOF) and its post-assembly metalation to give a PdII-AuIII supramolecular assembly, crystallography underpinned. These SCCs@MOFs catalyze the coupling of boronic acids and/or alkynes, representative multi-site metal-catalyzed reactions in which traditional SCCs tend to decompose, and retain their structural integrity as a consequence of the synergetic hybridization between SCCs and MOFs. These results open new avenues in both the synthesis of novel SCCs and their use in heterogeneous metal-based supramolecular catalysis.
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Affiliation(s)
- Rosa Adam
- Instituto de Tecnología Química , Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC) , Avda. de los Naranjos s/n , 46022 Valencia , Spain
| | - Marta Mon
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Catedrático José Beltrán Martínez, 2 , Universidad de Valencia , 46980 Paterna , Valencia , Spain
| | - Rossella Greco
- Instituto de Tecnología Química , Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC) , Avda. de los Naranjos s/n , 46022 Valencia , Spain
| | - Lucas H G Kalinke
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Catedrático José Beltrán Martínez, 2 , Universidad de Valencia , 46980 Paterna , Valencia , Spain.,Instituto Federal de Goiás-IFG , 75131-457 , Anápolis , Goiás , Brazil
| | - Alejandro Vidal-Moya
- Instituto de Tecnología Química , Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC) , Avda. de los Naranjos s/n , 46022 Valencia , Spain
| | - Antonio Fernandez
- Chemistry Department , Sir David Davies Building, Loughborough University , Loughborough LE11 3TU , United Kingdom
| | - Richard E P Winpenny
- School of Chemistry and Photon Science Institute , The University of Manchester , Oxford Road , Manchester M13 9PL , United Kingdom
| | - Antonio Doménech-Carbó
- Departament de Química Analítica , Universitat de València , Dr. Moliner, 50 , 46100 Burjassot , València , Spain
| | - Antonio Leyva-Pérez
- Instituto de Tecnología Química , Universidad Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC) , Avda. de los Naranjos s/n , 46022 Valencia , Spain
| | - Donatella Armentano
- Dipartimento di Chimica e Tecnologie Chimiche (CTC) , Università della Calabria , via P. Bucci, 12 , Rende 87036 , Cosenza , Italy
| | - Emilio Pardo
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Catedrático José Beltrán Martínez, 2 , Universidad de Valencia , 46980 Paterna , Valencia , Spain
| | - Jesús Ferrando-Soria
- Departamento de Química Inorgánica, Instituto de Ciencia Molecular (ICMol), Catedrático José Beltrán Martínez, 2 , Universidad de Valencia , 46980 Paterna , Valencia , Spain
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119
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Measurement of ligand coverage on cadmium selenide nanocrystals and its influence on dielectric dependent photoluminescence intermittency. Commun Chem 2019. [DOI: 10.1038/s42004-019-0164-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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120
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Zhou J. Recent Progress on 2D Group II‐VI Binary Chalcogenides ZnX and CdX (X = S, Se, Te): From a Theoretical Perspective. ADVANCED THEORY AND SIMULATIONS 2019. [DOI: 10.1002/adts.201900061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jia Zhou
- School of ScienceHarbin Institute of Technology (Shenzhen) Shenzhen 518055 China
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121
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Jia G, Pang Y, Ning J, Banin U, Ji B. Heavy-Metal-Free Colloidal Semiconductor Nanorods: Recent Advances and Future Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900781. [PMID: 31063615 DOI: 10.1002/adma.201900781] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 02/26/2019] [Indexed: 05/10/2023]
Abstract
Quasi-1D colloidal semiconductor nanorods (NRs) are at the forefront of nanoparticle (NP) research owing to their intriguing size-dependent and shape-dependent optical and electronic properties. The past decade has witnessed significant advances in both fundamental understanding of the growth mechanisms and applications of these stimulating materials. Herein, the state-of-the-art of colloidal semiconductor NRs is reviewed, with special emphasis on heavy-metal-free materials. The main growth mechanisms of heavy-metal-free colloidal semiconductor NRs are first elaborated, including anisotropic-controlled growth, oriented attachment, solution-liquid-solid method, and cation exchange. Then, structural engineering and properties of semiconductor NRs are discussed, with a comprehensive overview of core/shell structures, alloying, and doping, as well as semiconductor-metal hybrid nanostructures, followed by highlighted practical applications in terms of photocatalysis, photodetectors, solar cells, and biomedicine. Finally, challenges and future opportunities in this fascinating research area are proposed.
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Affiliation(s)
- Guohua Jia
- Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, GPO Box U1987, WA, 6845, Australia
| | - Yingping Pang
- Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, GPO Box U1987, WA, 6845, Australia
| | - Jiajia Ning
- Department of Materials Science and Engineering & Centre for Functional Photonics (CFP), City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Uri Banin
- Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Botao Ji
- School of Engineering, Westlake University, 18 Shilongshan Road, Hangzhou, 310024, China
- Institute of Advanced Technology Westlake Institute for Advanced Study, Westlake University, 18 Shilongshan Road, Hangzhou, 310024, China
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122
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Das A. Experimental and Theoretical Studies on Molecular Structures, Nanostructural Features, and Photophysical Properties of 5-Amino-1-Alkylimidazole-4-Carboxamide Compounds. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619060143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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123
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Chen JS, Li M, Cotlet M. Nanoscale Photoinduced Charge Transfer with Individual Quantum Dots: Tunability through Synthesis, Interface Design, and Interaction with Charge Traps. ACS OMEGA 2019; 4:9102-9112. [PMID: 31459998 PMCID: PMC6648770 DOI: 10.1021/acsomega.9b00803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 05/03/2019] [Indexed: 05/29/2023]
Abstract
Semiconducting colloidal quantum dots (QDs) provide an excellent platform for nanoscale charge-transfer studies. Because of their size-dependent optoelectronic properties, which can be tuned via chemical synthesis and of their versatility in surface ligand exchange, QDs can be coupled with various types of acceptors to create hybrids with controlled type (electron or hole), direction, and rate of charge flow, depending on the foreseen application, either solar harvesting, light emitting, or biosensing. This perspective highlights several examples of QD-based hybrids with controllable (tunable) rate of charge transfer obtained by various approaches, including by changing the QD core size and shell thickness by colloidal synthesis, by the insertion of molecular linkers or dielectric spacers between donor and acceptor components. We also show that subjecting QDs to external factors such as electric fields and alternate optical excitation energy is another approach to bias the internal charge transfer between charges photogenerated in the QD core and QD's surface charge traps. The perspective also provides the reader with various examples of how single nanoparticle spectroscopic studies can help in understanding and quantifying nanoscale charge transfer with QDs.
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Affiliation(s)
- Jia-Shiang Chen
- Center
for Functional Nanomaterials, Brookhaven
National Laboratory, Upton, New York 11973, United States
- Department
of Materials Science and Chemical Engineering, Stony Brook University, Stony
Brook, New York 11794, United States
| | - Mingxing Li
- Center
for Functional Nanomaterials, Brookhaven
National Laboratory, Upton, New York 11973, United States
| | - Mircea Cotlet
- Center
for Functional Nanomaterials, Brookhaven
National Laboratory, Upton, New York 11973, United States
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124
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Tunable electron transfer rate in a CdSe/ZnS-based complex with different anthraquinone chloride substitutes. Sci Rep 2019; 9:7756. [PMID: 31123306 PMCID: PMC6533304 DOI: 10.1038/s41598-019-44325-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/13/2019] [Indexed: 11/08/2022] Open
Abstract
We use femtosecond transient absorption spectroscopy to study ultrafast electron transfer (ET) dynamics in a model donor and acceptor system using CdSe/ZnS core/shell structure quantum dots (QDs) as donors and anthraquinone (AQ) molecules as acceptors. The ET rate can be enhanced by decreasing the number of chlorine substituents in the AQ molecules because that increases the driving force, which is the energy level offset between the conduction band energy of CdSe/ZnS and the lowest upper molecular orbital potential of AQ derivatives, as confirmed by cyclic voltammetry measurements. However, the electronic coupling between the QDs and AQ derivatives, and the sum of reorganization energy of AQ molecules and solvent calculated by density functional theory are not the main reasons for the change in ET rate in three systems. Our findings provide new insights into selecting an acceptor molecule and will be useful in tuning ET processes for advanced QD-based applications.
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125
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Wang Y, Jin Y, Zhang T, Huang Z, Yang H, Wang J, Jiang K, Fan S, Li Q. Emission Enhancement from CdSe/ZnS Quantum Dots Induced by Strong Localized Surface Plasmonic Resonances without Damping. J Phys Chem Lett 2019; 10:2113-2120. [PMID: 30990711 DOI: 10.1021/acs.jpclett.9b00818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A high-performance exciton-localized surface plasmon (LSP) coupling system consisting of well-designed plasmonic nanostructures and CdSe/ZnS quantum dots (QDs) was fabricated by first introducing a Ta2O5 layer as both an adhesive coating and coupling medium. It is shown that a larger emission enhancement factor of 6 from CdSe/ZnS QDs can be obtained from the strong coupling effect between QDs and triprism Au nanoarrays and the high scattering efficiency of LSPs without damping. This can be attributed to the matching conditions and a low extinction coefficient with little damping absorption of the Ta2O5 layer in the system. The radiative scattering rate of ΓLSPs can make a contribution to the spontaneous emission rate Γ and thus improve the internal quantum yield of the QDs. This strategy could be promising for practical application of metal-modified fluorescence enhancement.
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Affiliation(s)
- Yingcheng Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- Collaborative Innovation Center of Quantum Matter , Beijing , China
| | - Yuanhao Jin
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- Collaborative Innovation Center of Quantum Matter , Beijing , China
| | - Tianfu Zhang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- Collaborative Innovation Center of Quantum Matter , Beijing , China
| | - Zhongzheng Huang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- Collaborative Innovation Center of Quantum Matter , Beijing , China
| | - Haitao Yang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- Collaborative Innovation Center of Quantum Matter , Beijing , China
| | - Jiaping Wang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- Collaborative Innovation Center of Quantum Matter , Beijing , China
| | - Kaili Jiang
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- Collaborative Innovation Center of Quantum Matter , Beijing , China
| | - Shoushan Fan
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- Collaborative Innovation Center of Quantum Matter , Beijing , China
| | - Qunqing Li
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics & Tsinghua-Foxconn Nanotechnology Research Center , Tsinghua University , Beijing 100084 , China
- Collaborative Innovation Center of Quantum Matter , Beijing , China
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126
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Song G, Li J, Yuan Y, Yao L, Gu J, Liu Q, Zhang W, Su Y, Zhang D. Large-Area 3D Hierarchical Superstructures Assembled from Colloidal Nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1805308. [PMID: 30938487 DOI: 10.1002/smll.201805308] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/07/2019] [Indexed: 06/09/2023]
Abstract
Assembling nanosized building blocks into macroscopic 3D complex structures is challenging. Here, nanosized metal and semiconductor building blocks with a variety of sizes and shapes (spheres, stars, and rods) are successfully assembled into a broad range of hierarchical (nanometer to micrometer) assemblies of functional materials in centimeter size using butterfly wings as templates. This is achieved by the introduction of steric hindrance to the assembly process, which compensates for attraction from the environmentally sensitive hydrogen bonds and prevents the aggregation of nanosized building blocks. Of these materials, Au nanostar assemblies show a superior enhancement in surface-enhanced Raman scattering (SERS) performance (rhodamine 6G, 1506 cm-1 ) under 532, 633, and 780 nm excitation-this is 3.1-4.4, 3.6-3.9, and 2.9-47.3 folds surpassing Au nanosphere assemblies and commercial SERS substrates (Q-SERS), respectively. This method provides a versatile route for the assembly of various nanosized building blocks into different 3D superstructures and for the construction of hybrid nanomaterials and nanocomposites.
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Affiliation(s)
- Guofen Song
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jinghan Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yang Yuan
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Lulu Yao
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jiajun Gu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Qinglei Liu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wang Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yishi Su
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Di Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
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127
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Simple synthesis of Ag-doped CdS nanostructure material with excellent properties. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-019-01044-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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128
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Glier TE, Akinsinde L, Paufler M, Otto F, Hashemi M, Grote L, Daams L, Neuber G, Grimm-Lebsanft B, Biebl F, Rukser D, Lippmann M, Ohm W, Schwartzkopf M, Brett CJ, Matsuyama T, Roth SV, Rübhausen M. Functional Printing of Conductive Silver-Nanowire Photopolymer Composites. Sci Rep 2019; 9:6465. [PMID: 31015552 PMCID: PMC6478917 DOI: 10.1038/s41598-019-42841-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 04/08/2019] [Indexed: 11/09/2022] Open
Abstract
We investigated the fabrication and functional behaviour of conductive silver-nanowire-polymer composites for prospective use in printing applications. Silver-nanowires with an aspect ratio of up to 1000 were synthesized using the polyol route and embedded in a UV-curable and printable polymer matrix. Sheet resistances in the composites down to 13 Ω/sq at an optical transmission of about 90% were accomplished. The silver-nanowire composite morphology and network structure was investigated by electron microscopy, atomic force microscopy, profilometry, ellipsometry as well as surface sensitive X-ray scattering. By implementing different printing applications, we demonstrate that our silver nanowires can be used in different polymer composites. On the one hand, we used a tough composite for a 2D-printed film as top contact on a solar cell. On the other hand, a flexible composite was applied for a 3D-printed flexible capacitor.
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Affiliation(s)
- Tomke E Glier
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany.
| | - Lewis Akinsinde
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Malwin Paufler
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Ferdinand Otto
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Maryam Hashemi
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Lukas Grote
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Lukas Daams
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Gerd Neuber
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Benjamin Grimm-Lebsanft
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Florian Biebl
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Dieter Rukser
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany
| | | | - Wiebke Ohm
- DESY, Notkestrasse 85, 22607, Hamburg, Germany
| | | | - Calvin J Brett
- DESY, Notkestrasse 85, 22607, Hamburg, Germany
- Department of Mechanics, KTH Royal Institute of Technology, Teknikringen 8, 100 44, Stockholm, Sweden
- Wallenberg Wood Science Center, Teknikringen 56-58, 100 44, Stockholm, Sweden
| | - Toru Matsuyama
- Max-Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761, Hamburg, Germany
| | - Stephan V Roth
- DESY, Notkestrasse 85, 22607, Hamburg, Germany.
- Department of Fiber and Polymertechnology, KTH Royal Institute of Technology, Teknikringen 56-58, 100 44, Stockholm, Sweden.
| | - Michael Rübhausen
- Institut für Nanostruktur- und Festkörperphysik, Center for Free Electron Laser Science (CFEL), Universität Hamburg, Luruper Chaussee 149, 22761, Hamburg, Germany.
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129
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Hsu SW, Xu T. Tailoring Co-assembly of Nanodiscs and Block Copolymer-Based Supramolecules by Manipulating Interparticle Interactions. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00069] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | - Ting Xu
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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130
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Development of Paint-Type Dye-Sensitized Solar Cell Using Carbon Nanotube Paint. JOURNAL OF NANOTECHNOLOGY 2019. [DOI: 10.1155/2019/5081034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This paper proposes paint-type dye-sensitized solar cells (DSCs). DSCs, one type of solar cell, generally consist of a dye-attached semiconducting electrode, a metallic electrode, and an electrolyte. The DSC generates power through the excitation of the electrons in the dyes and the oxidation-reduction reaction between the dyes and the electrolyte. For our paint-type DSC, we made two electrodes by painting two types of paint on substrates. We used carbon nanotubes (CNTs) as the paint material because they have both semiconducting and metallic properties. This enabled us to prepare semiconducting and metallic electrodes easily by simply painting with the CNT paint. As a result of testing, we determined that our DSCs were capable of power generation. Our paint-type DSCs have the potential to provide power as a unique and useful device for daily life in the near future.
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131
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Wang K, Hohn N, Kreuzer LP, Widmann T, Haese M, Moulin JF, Müller-Buschbaum P. Morphology Tuning of ZnO/P3HT/P3HT- b-PEO Hybrid Films Deposited via Spray or Spin Coating. ACS APPLIED MATERIALS & INTERFACES 2019; 11:10998-11005. [PMID: 30794374 DOI: 10.1021/acsami.9b00599] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Hybrid films of zinc oxide (ZnO) and poly(3-hexylthiophen-2,5-diyl) (P3HT) show promising characteristics for application in hybrid bulk-heterojunction solar cells (HBSCs). However, the incompatibility of ZnO and P3HT may lead to a reduced interface area, thus reducing the probability of exciton separation and consequently lowering solar cell efficiencies. Here, a diblock copolymer P3HT- b-poly(ethylene oxide) (PEO) is introduced to improve the interface between ZnO and P3HT. ZnO is synthesized via a block copolymer assisted sol-gel approach, and the used zinc precursor is directly incorporated into the PEO blocks. Thus, the possibility of aggregation is reduced for both the inorganic and the organic components, and a good intermixing is ascertained. Two deposition methods, namely, spray and spin coating, are compared with respect to the resulting film structure, which is investigated with scanning electron microscopy and time-of-flight grazing-incidence small-angle neutron scattering measurements. Both the surface and inner morphologies reveal that the spin coated samples possess smaller and less diverse domain sizes than the sprayed films. Due to the advantage of spray coating in large-scale production, the morphology of the sprayed samples is tailored more meticulously by changing the weight fraction of ZnO in the films. The sprayed hybrid films show smaller domains and less aggregation with decreasing the amount of ZnO. This reveals that both the deposition method and composition of the ZnO/P3HT/P3HT- b-PEO hybrid films play an important role for tailoring the film morphology and thus for improving the performance of HBSCs in future application.
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Affiliation(s)
- Kun Wang
- Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
| | - Nuri Hohn
- Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
| | - Lucas P Kreuzer
- Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
| | - Tobias Widmann
- Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
| | - Martin Haese
- Helmholtz-Zentrum Geesthacht at Heinz Maier-Leibnitz Zentrum , Lichtenbergstr. 1 , 85747 Garching , Germany
| | - Jean-Francois Moulin
- Helmholtz-Zentrum Geesthacht at Heinz Maier-Leibnitz Zentrum , Lichtenbergstr. 1 , 85747 Garching , Germany
| | - Peter Müller-Buschbaum
- Lehrstuhl für Funktionelle Materialien, Physik-Department , Technische Universität München , James-Franck-Str. 1 , 85748 Garching , Germany
- Heinz Maier-Leibnitz Zentrum (MLZ) , Technische Universität München , Lichtenbergstr. 1 , 85748 Garching , Germany
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132
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Ali G, Park YJ, Hussain A, Cho SO. A novel route to the formation of 3D nanoflower-like hierarchical iron oxide nanostructure. NANOTECHNOLOGY 2019; 30:095601. [PMID: 30523837 DOI: 10.1088/1361-6528/aaf52a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The present work reports the formation of 3D nanoflower-like morphology of iron alkoxide via the anodization of Fe sheet in ethylene glycol (EG) electrolyte. XRD, FESEM, EDX, XPS, Raman and FTIR are applied to characterize the samples. SEM results show that the as-anodized sample is composed of 3D nanoflowers with hierarchical nanosheets beneath it. The average width of the nanoflower petal is ∼25 nm and the length is about 1 μm. The 3D nanoflowers are transformed into spherical nanoparticles (NPs) with uniform size when calcined at elevated temperature. XRD and Raman results indicate that the 3D nanoflowers consist of akaganeite, which transforms into magnetite and hematite by annealing. XPS and FTIR results confirm that the nanoflowers contain significant amounts of F, C and OH, which are drastically decreased after annealing. The formation of 3D nanoflower-like morphology can be attributed to EG. A possible formation mechanism of 3D nanoflowers and their transformation into NPs is proposed. We showed that the morphology of the as-anodized iron oxide can be tailored simply by changing the electrolyte. The anodization of Fe sheet in glycerol-based electrolyte under identical conditions produced nanotubes.
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Affiliation(s)
- Ghafar Ali
- Department of Nuclear and Quantum Engineering (NQe), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea. Nanomaterials Research Group (NRG), Physics Division, PINSTECH, Islamabad 44000, Pakistan
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133
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Bruna N, Collao B, Tello A, Caravantes P, Díaz-Silva N, Monrás JP, Órdenes-Aenishanslins N, Flores M, Espinoza-Gonzalez R, Bravo D, Pérez-Donoso JM. Synthesis of salt-stable fluorescent nanoparticles (quantum dots) by polyextremophile halophilic bacteria. Sci Rep 2019; 9:1953. [PMID: 30760793 PMCID: PMC6374371 DOI: 10.1038/s41598-018-38330-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 12/19/2018] [Indexed: 12/01/2022] Open
Abstract
Here we report the biological synthesis of CdS fluorescent nanoparticles (Quantum Dots, QDs) by polyextremophile halophilic bacteria isolated from Atacama Salt Flat (Chile), Uyuni Salt Flat (Bolivia) and the Dead Sea (Israel). In particular, a Halobacillus sp. DS2, a strain presenting high resistance to NaCl (3-22%), acidic pH (1-4) and cadmium (CdCl2 MIC: 1,375 mM) was used for QDs biosynthesis studies. Halobacillus sp. synthesize CdS QDs in presence of high NaCl concentrations in a process related with their capacity to generate S2- in these conditions. Biosynthesized QDs were purified, characterized and their stability at different NaCl concentrations determined. Hexagonal nanoparticles with highly defined structures (hexagonal phase), monodisperse size distribution (2-5 nm) and composed by CdS, NaCl and cysteine were determined by TEM, EDX, HRXPS and FTIR. In addition, QDs biosynthesized by Halobacillus sp. DS2 displayed increased tolerance to NaCl when compared to QDs produced chemically or biosynthesized by non-halophilic bacteria. This is the first report of biological synthesis of salt-stable QDs and confirms the potential of using extremophile microorganisms to produce novel nanoparticles. Obtained results constitute a new alternative to improve QDs properties, and as consequence, to increase their industrial and biomedical applications.
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Affiliation(s)
- N Bruna
- BioNanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Santiago, Chile
| | - B Collao
- BioNanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Santiago, Chile
| | - A Tello
- BioNanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Santiago, Chile
- Laboratorio de Nanotecnología, Recursos Naturales y Sistemas Complejos, Facultad de Ciencias Naturales, Departamento de Química y Biología, Universidad de Atacama, Copiapó, Chile
| | - P Caravantes
- BioNanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Santiago, Chile
| | - N Díaz-Silva
- BioNanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Santiago, Chile
| | - J P Monrás
- BioNanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Santiago, Chile
| | - N Órdenes-Aenishanslins
- BioNanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Santiago, Chile
| | - M Flores
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile
| | - R Espinoza-Gonzalez
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile
| | - D Bravo
- Laboratorio de Microbiología Oral, Facultad de Odontología, Universidad de Chile, Santiago, Chile
| | - J M Pérez-Donoso
- BioNanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Universidad Andres Bello, Santiago, Chile.
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134
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Sun H, Kabb CP, Sims MB, Sumerlin BS. Architecture-transformable polymers: Reshaping the future of stimuli-responsive polymers. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2018.09.006] [Citation(s) in RCA: 167] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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135
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Rath T, Scheunemann D, Canteri R, Amenitsch H, Handl J, Wewerka K, Kothleitner G, Leimgruber S, Knall AC, Haque SA. Ligand-free preparation of polymer/CuInS 2 nanocrystal films and the influence of 1,3-benzenedithiol on their photovoltaic performance and charge recombination properties. JOURNAL OF MATERIALS CHEMISTRY. C 2019; 7:943-952. [PMID: 30774956 PMCID: PMC6350655 DOI: 10.1039/c8tc05103h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
Bulk heterojunction solar cells based on conjugated polymer donors and fullerene-derivative acceptors have received much attention in the last decade. Alternative acceptors like organic non-fullerene acceptors or inorganic nanocrystals have been investigated to a lesser extent; however, they also show great potential. In this study, one focus is set on the investigation of the in situ growth of copper indium sulfide nanocrystals in a conjugated polymer matrix. This preparation method allows the fabrication of a hybrid active layer without long-chain ligands, which could hinder charge separation and transport. In contrast, surfactants for the passivation of the nanocrystal surface are missing. To tackle this problem, we modified the absorber layer with 1,3-benzenedithiol and investigated the influence on charge transfer and solar cell performance. Using ToF-SIMS measurements, we could show that 1,3-benzenedithiol is successfully incorporated and homogeneously distributed in the absorber layer, which significantly increases the power conversion efficiency of the corresponding solar cells. This can be correlated to an improved charge transfer between the nanocrystals and the conjugated polymer as revealed by transient absorption spectroscopy as well as prolonged carrier lifetimes as disclosed by transient photovoltage measurements.
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Affiliation(s)
- Thomas Rath
- Institute for Chemistry and Technology of Materials (ICTM) , NAWI Graz , Graz University of Technology , Stremayrgasse 9 , 8010 Graz , Austria .
| | - Dorothea Scheunemann
- Energy and Semiconductor Research Laboratory , Department of Physics , Carl von Ossietzky University of Oldenburg , Carl-von-Ossietzky-Strasse 9-11 , 26129 Oldenburg , Germany
| | - Roberto Canteri
- Fondazione Bruno Kessler - Center for Materials and Microsystems , Via Sommarive 18 , I-38123 Povo (Trento) , Italy
| | - Heinz Amenitsch
- Institute for Inorganic Chemistry , NAWI Graz , Graz University of Technology , Stremayrgasse 9 , 8010 Graz , Austria
| | - Jasmin Handl
- Institute for Chemistry and Technology of Materials (ICTM) , NAWI Graz , Graz University of Technology , Stremayrgasse 9 , 8010 Graz , Austria .
| | - Karin Wewerka
- Institute for Electron Microscopy and Nanoanalysis and Center for Electron Microscopy , Graz University of Technology , NAWI Graz , Steyrergasse 17 , 8010 Graz , Austria
| | - Gerald Kothleitner
- Institute for Electron Microscopy and Nanoanalysis and Center for Electron Microscopy , Graz University of Technology , NAWI Graz , Steyrergasse 17 , 8010 Graz , Austria
| | - Simon Leimgruber
- Institute for Chemistry and Technology of Materials (ICTM) , NAWI Graz , Graz University of Technology , Stremayrgasse 9 , 8010 Graz , Austria .
| | - Astrid-Caroline Knall
- Institute for Chemistry and Technology of Materials (ICTM) , NAWI Graz , Graz University of Technology , Stremayrgasse 9 , 8010 Graz , Austria .
| | - Saif A Haque
- Department of Chemistry and Centre for Plastic Electronics , Imperial College London , Imperial College Road , London , SW7 2AZ , UK
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136
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Xiong C, Liu M, Zhu X, Tang A. A General One-Pot Approach to Synthesize Binary and Ternary Metal Sulfide Nanocrystals. NANOSCALE RESEARCH LETTERS 2019; 14:19. [PMID: 30635803 PMCID: PMC6329689 DOI: 10.1186/s11671-019-2856-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
A general one-pot approach is developed to synthesize a series of binary metal sulfide nanocrystals (NCs) including PbS, Cu2S, ZnS, CdS, Ag2S, and ternary CuInS2 and CdS:Cu(I) NCs. This synthetic approach involves thermal decomposition of the mixture of inorganic metal salts and n-dodecanethiol (DDT) without pre-synthesis of any organometallic precursors. In this method, layered metal-thiolate compound is formed at the beginning of the reaction and then this intermediate compound is decomposed into small particles, leading to further growth as the reaction time increases. The as-obtained CdS NCs exhibits a broad but weak surface-state emission, and the Cu(I) doping leads to a red-shift of the emission band due to the Cu(I)-related emission. It is expected that this one-pot approach can be extended to prepare multinary metal sulfide NCs.
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Affiliation(s)
- Chao Xiong
- School of Electrical and Photoelectronic Engineering, Changzhou Institute of Technology, Changzhou, 213032 China
| | - Mingrui Liu
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing Jiao Tong University, Beijing, 100044 China
| | - Xifang Zhu
- School of Electrical and Photoelectronic Engineering, Changzhou Institute of Technology, Changzhou, 213032 China
| | - Aiwei Tang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, School of Science, Beijing Jiao Tong University, Beijing, 100044 China
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137
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Pradhan S, Pramanik S, Das DK, Bhar R, Bandyopadhyay R, Millner P, Pramanik P. Nanosized iron telluride for simultaneous nanomolar voltammetric determination of dopamine, uric acid, guanine and adenine. NEW J CHEM 2019. [DOI: 10.1039/c9nj02329a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, an efficient electrochemical sensor based on nano-sized iron telluride material (FeTe2) have been developed for the first time for simultaneous nanomolar determination of dopamine, uric acid, guanine and adenine molecules.
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Affiliation(s)
- Susmita Pradhan
- Department of Instrumentation Science
- Jadavpur University
- Kolkata-700032
- India
| | - Susmita Pramanik
- Department of Chemistry and Nanoscience
- GLA University
- Mathura-281406
- India
| | - Dipak K. Das
- Department of Chemistry and Nanoscience
- GLA University
- Mathura-281406
- India
| | - Radhaballabh Bhar
- Department of Instrumentation Science
- Jadavpur University
- Kolkata-700032
- India
| | - Rajib Bandyopadhyay
- Department of Instrumentation and Electronics Engineering
- Jadavpur University
- Kolkata-700098
- India
- Laboratory of Artificial Sensory Systems
| | - Paul Millner
- Faculty of Biological Sciences
- University of Leeds
- UK
| | - Panchanan Pramanik
- Department of Chemistry and Nanoscience
- GLA University
- Mathura-281406
- India
- Nanotechnology & Catalysis Research Centre Level 3, Block A, Institute for Advanced Studies
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138
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Jia G, Wang K, Liu B, Yang P, Liu J, Zhang W, Li R, Wang C, Zhang S, Du J. Cation exchange synthesis of CuInxGa1−xSe2 nanowires and their implementation in photovoltaic devices. RSC Adv 2019; 9:35780-35785. [PMID: 35528051 PMCID: PMC9074412 DOI: 10.1039/c9ra04605d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 10/21/2019] [Indexed: 11/21/2022] Open
Abstract
CuInxGa1−xSe2 (CIGS) nanowires were synthesized for the first time through an in situ cation exchange reaction by using CuInSe2 (CIS) nanowires as a template material and Ga-OLA complexes as the Ga source. These CIGS nanowires maintain nearly the same morphology as CIS nanowires, and the Ga/In ratio can be controlled through adjusting the concentration of Ga-OLA complexes. The characteristics of adjustable band gap and highly effective light-absorbances have been achieved for these CIGS nanowires. The light-absorbing layer in photovoltaic devices (PVs) can be assembled by employing CIGS nanowires as a solar-energy material for enhancing the photovoltaic response. The highest power conversion efficiency of solar thin film semiconductors is more than 20%, achieved by the Cu(InxGa1−x)Se2 (CIGS) thin-film solar cells. Therefore, these CIGS nanowires have a great potential to be utilized as light absorber materials for high efficiency single nanowire solar cells and to generate bulk heterojunction devices. CuInxGa1−xSe2 (CIGS) nanowires were synthesized for the first time through an in situ cation exchange reaction by using CuInSe2 (CIS) nanowires as a template material and Ga-OLA complexes as the Ga source.![]()
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Affiliation(s)
- Guanwei Jia
- School of Physics and Electronics
- Henan University
- Kaifeng 475004
- China
| | - Kun Wang
- Henan Province Industrial Technology Research Institute of Resources and Materials
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Baokun Liu
- Henan Province Industrial Technology Research Institute of Resources and Materials
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Peixu Yang
- Henan Province Industrial Technology Research Institute of Resources and Materials
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Jinhui Liu
- Henan Province Industrial Technology Research Institute of Resources and Materials
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Weidong Zhang
- Henan Province Industrial Technology Research Institute of Resources and Materials
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Rongbin Li
- School of Metallurgical and Ecological Engineering
- University of Science and Technology Beijing
- Beijing 100083
- China
| | - Chengduo Wang
- Henan Province Industrial Technology Research Institute of Resources and Materials
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Shaojun Zhang
- Henan Province Industrial Technology Research Institute of Resources and Materials
- Zhengzhou University
- Zhengzhou 450001
- China
| | - Jiang Du
- Henan Province Industrial Technology Research Institute of Resources and Materials
- Zhengzhou University
- Zhengzhou 450001
- China
- Department of Chemical Engineering
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139
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Wang Q, Chen Z, Wang J, Xu Y, Wei Y, Wei Y, Qiu L, Lu H, Ding Y, Zhu J. Sb 2S 3 solar cells: functional layer preparation and device performance. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00800d] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This review focuses on Sb2S3 solar cell functional layers, including their preparation methodologies, morphologies, structures, and photovoltaic performance.
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140
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Wu Y, Wan L, Zhang W, Li X, Fang J. In situ grown silver bismuth sulfide nanorod arrays and their application to solar cells. CrystEngComm 2019. [DOI: 10.1039/c9ce00164f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
AgBiS2 nanorod arrays are produced in situ by spin-coating and annealing. They are applied to photovoltaic devices to give an efficiency of 1.4%.
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Affiliation(s)
- Yulei Wu
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
- Center of Materials Science and Optoelectronics Engineering
| | - Li Wan
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
| | - Wenxiao Zhang
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
- Center of Materials Science and Optoelectronics Engineering
| | - Xiaodong Li
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
- Center of Materials Science and Optoelectronics Engineering
| | - Junfeng Fang
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
- China
- Center of Materials Science and Optoelectronics Engineering
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141
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Lakhotiya G, Belsare N, Arbuj S, Kale B, Rana A. Enhanced performance of PTB7-Th:PCBM based active layers in ternary organic solar cells. RSC Adv 2019; 9:7457-7463. [PMID: 35519996 PMCID: PMC9061204 DOI: 10.1039/c8ra08919a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 02/21/2019] [Indexed: 11/21/2022] Open
Abstract
The present study aims at understanding the role of incorporating Cu2S nanocrystals (NCs) as a third component in ternary organic solar cells.
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Affiliation(s)
- Govinda Lakhotiya
- Department of Physics
- Jankidevi Bajaj College of Science
- Wardha 442001
- India
- Department of Physics
| | - Namdeo Belsare
- Department of Physics
- Vidyabharati Mahavidyalaya
- Amravati 444602
- India
| | - Sudhir Arbuj
- Centre for Materials for Electronics Technology
- Pune 411008
- India
| | - Bharat Kale
- Centre for Materials for Electronics Technology
- Pune 411008
- India
| | - Abhimanyu Rana
- School of Engineering and Technology
- BML Munjal University
- Gurgaon 122413
- India
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142
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Influence of Pb on structure, optical and electrical properties of Zn1-XPbXS semiconductor compounds at low temperatures. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.11.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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143
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Banerjee S, Maddala BG, Ali F, Datta A. Enhancement of the band edge emission of CdSe nano-tetrapods by suppression of surface trapping. Phys Chem Chem Phys 2019; 21:9512-9519. [DOI: 10.1039/c9cp00198k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Preparation of CdSe nano-tetrapods in a controlled environment to eliminate radiative surface state emission.
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Affiliation(s)
- Sucheta Banerjee
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400 076
- India
| | - Bala Gopal Maddala
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400 076
- India
- IITB-Monash Research Academy
| | - Fariyad Ali
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400 076
- India
| | - Anindya Datta
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400 076
- India
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144
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Yu T, Zhang T, Wang X, Zhao Y, Wei C, Li Y, Zhang H. Synthesis and photophysical properties of fullerene derivatives containing a C 60-fluorene core. NEW J CHEM 2019. [DOI: 10.1039/c8nj05944f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three novel fullerene derivatives were synthesized, which could be used as electron acceptors in the P3HT-based organic photovoltaic cells.
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Affiliation(s)
- Tianzhi Yu
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Tong Zhang
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Xin Wang
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Yuling Zhao
- School of Chemical and Biological Engineering
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Chengjin Wei
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Yanmei Li
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
| | - Hui Zhang
- Key Laboratory of Opto-Electronic Technology and Intelligent Control (Ministry of Education)
- Lanzhou Jiaotong University
- Lanzhou 730070
- China
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145
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Park J, Hwang S, Jeong S, Kim S, Bang J, Cho S. Heterojunction Area-Controlled Inorganic Nanocrystal Solar Cells Fabricated Using Supra-Quantum Dots. ACS APPLIED MATERIALS & INTERFACES 2018; 10:43768-43773. [PMID: 30411612 DOI: 10.1021/acsami.8b14752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A supra-quantum dot (SQD) is a three-dimensional structure formed by the attachment of quantum dots. The SQDs have sizes of tens of nanometer and they maintain the characteristics of the individual quantum dots fairly well. Moreover, their sizes and elemental compositions can be tuned precisely. On the basis of their unique features, in this work, SQDs are used as constituents of the interpenetrating photoactive layers of inorganic nanocrystal p-n heterojunction solar cells to control the p-type and n-type domain sizes (i.e., p-n heterojunction areas) for optimizing the charge-carrier collection. SQD-containing p-n heterojunction solar cells exhibit improved charge transport and thereby higher power conversion efficiency (PCE) (3.03%) owing to their intermediate p-type and n-type domain sizes, which are between those of a bilayer nanorod p-n heterojunction solar cell (PCE: 1.21%) and an interpenetrating nanorod p-n heterojunction solar cell (PCE: 2.40%). This work demonstrates that the self-assembly of nanoscale materials can be utilized for tailoring the spatial distributions of charge carriers, which is beneficial for obtaining an enhanced device performance.
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Affiliation(s)
- Juwon Park
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Namgu, Pohang 37673 , Republic of Korea
| | - Sungjae Hwang
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Namgu, Pohang 37673 , Republic of Korea
| | - Sanghwa Jeong
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Namgu, Pohang 37673 , Republic of Korea
| | - Sungjee Kim
- Department of Chemistry , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-ro , Namgu, Pohang 37673 , Republic of Korea
| | - Jiwon Bang
- Electronic Conversion Materials Division , Korea Institute of Ceramic Engineering and Technology , Jinju 52852 , Republic of Korea
| | - Seungho Cho
- School of Materials Science and Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
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146
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Synthesis of 3,4-Biaryl-2,5-Dichlorothiophene through Suzuki Cross-Coupling and Theoretical Exploration of Their Potential Applications as Nonlinear Optical Materials. Symmetry (Basel) 2018. [DOI: 10.3390/sym10120766] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We report herein the efficient one-pot synthesis of 3,4-biaryl-2,5-dichlorothiophene derivatives (2a–2i) via a palladium-catalyzed Suzuki cross-coupling reaction. A series of thiophene derivatives were synthesized, starting from 3,4-dibromo-2,5-dichlorothiophene (1) and various arylboronic acids using Pd(PPh3)4 and K3PO4 with moderate to good yields. For further insights about the structure and property relationship, density functional theory (DFT) calculations were performed. A relaxed potential energy surface (PES) scan was performed to locate the minimum energy structure. A frontier molecular orbitals analysis was performed to explain the reactivity of all synthesized derivatives. As the synthesized derivatives had extended conjugations, therefore the first hyperpolarizability (βo) was calculated to investigate their potential as non-linear optical (NLO) materials and significant βo values were found for the 2b and 2g derivatives.
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147
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He S, Wang H, Zhang C, Zhang S, Yu Y, Lee Y, Li T. A generalizable method for the construction of MOF@polymer functional composites through surface-initiated atom transfer radical polymerization. Chem Sci 2018; 10:1816-1822. [PMID: 31191897 PMCID: PMC6532532 DOI: 10.1039/c8sc03520b] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 12/02/2018] [Indexed: 01/08/2023] Open
Abstract
A universal method to grow polymers on MOF surfaces with well-defined thickness, sequence and functionality.
We report a generalizable approach to construct MOF@polymer functional composites through surface-initiated atom transfer radical polymerization (SI-ATRP). Unlike conventional SI-ATRP that requires covalent pre-anchoring of the initiating group on substrate surfaces, in our approach, a rationally designed random copolymer (RCP) macroinitiator first self-assembles on MOF surfaces through inter-chain hydrogen bond crosslinking. Subsequent polymerization in the presence of a crosslinking monomer covalently threads these polymer chains into a robust network, physically confining the MOF particle inside the polymer shell. We demonstrated the universality of this approach by growing various polymers on five MOFs of different metals (Zr, Zn, Co, Al, and Cr) with complete control over shell thickness, functionality and layer sequence while still retaining the inherent porosity of the MOFs. Moreover, the wettability of UiO-66 can be continuously tuned from superhydrophilic to superhydrophobic simply through judicious monomer(s) selection. We also demonstrated that a 7 nm polystyrene shell can effectively shield UiO-66 particles against 1 M H2SO4 and 1 M NaOH at elevated temperature, enabling their potential application in demanding chemical environments.
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Affiliation(s)
- Sanfeng He
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China .
| | - Hongliang Wang
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China .
| | - Cuizheng Zhang
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China .
| | - Songwei Zhang
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China .
| | - Yi Yu
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China .
| | - Yongjin Lee
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China .
| | - Tao Li
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China .
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148
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Xu J, Tong X, Yu P, Wenya GE, McGrath T, Fong MJ, Wu J, Wang ZM. Ultrafast Dynamics of Charge Transfer and Photochemical Reactions in Solar Energy Conversion. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800221. [PMID: 30581691 PMCID: PMC6299728 DOI: 10.1002/advs.201800221] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 08/05/2018] [Indexed: 05/31/2023]
Abstract
For decades, ultrafast time-resolved spectroscopy has found its way into an increasing number of applications. It has become a vital technique to investigate energy conversion processes and charge transfer dynamics in optoelectronic systems such as solar cells and solar-driven photocatalytic applications. The understanding of charge transfer and photochemical reactions can help optimize and improve the performance of relevant devices with solar energy conversion processes. Here, the fundamental principles of photochemical and photophysical processes in photoinduced reactions, in which the fundamental charge carrier dynamic processes include interfacial electron transfer, singlet excitons, triplet excitons, excitons fission, and recombination, are reviewed. Transient absorption (TA) spectroscopy techniques provide a good understanding of the energy/electron transfer processes. These processes, including excited state generation and interfacial energy/electron transfer, are dominate constituents of solar energy conversion applications, for example, dye-sensitized solar cells and photocatalysis. An outlook for intrinsic electron/energy transfer dynamics via TA spectroscopic characterization is provided, establishing a foundation for the rational design of solar energy conversion devices.
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Affiliation(s)
- Jing‐Yin Xu
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054P. R. China
| | - Xin Tong
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054P. R. China
| | - Peng Yu
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054P. R. China
| | - Gideon Evans Wenya
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054P. R. China
| | - Thomas McGrath
- Department of PhysicsLancaster UniversityLancasterLancashireLA14YWUK
| | | | - Jiang Wu
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054P. R. China
- Department of Electronic and Electrical EngineeringUniversity College LondonTorrington PlaceLondonWC1E7JEUK
| | - Zhiming M. Wang
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054P. R. China
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149
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Lim SC, Lo WF, Yang PY, Lu SC, Joplin A, Link S, Chang WS, Tuan HY. Au@CdSe heteroepitaxial nanorods: An example of metal nanorods fully covered by a semiconductor shell with strong photo-induced interfacial charge transfer effects. J Colloid Interface Sci 2018; 532:143-152. [DOI: 10.1016/j.jcis.2018.07.080] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/14/2018] [Accepted: 07/20/2018] [Indexed: 11/30/2022]
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150
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Coordinating Effect of Non-phosphine Solvents on the Structure and Morphological Properties of Cu2SnSe3 (CTSe) Nanoparticles Synthesized by Hot-Injection Method. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-1020-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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