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Abdul Basit M, Aanish Ali M, Masroor Z, Tariq Z, Ho Bang J. Quantum dot-sensitized solar cells: a review on interfacial engineering strategies for boosting efficiency. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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2
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Gür EP, Eryiğit M, Demir Ü. High-Performance PbS/CdS Quantum Dot Co-Sensitized Hierarchical ZnO Nanowall Photoanodes Decorated on Electrochemically Reduced Graphene. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141584] [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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3
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Baronnier J, Houel J, Dujardin C, Kulzer F, Mahler B. Doping MAPbBr 3 hybrid perovskites with CdSe/CdZnS quantum dots: from emissive thin films to hybrid single-photon sources. NANOSCALE 2022; 14:5769-5781. [PMID: 35352077 DOI: 10.1039/d1nr08473a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report the first doping of crystalline methyl-ammonium lead bromide perovskite (MAPbBr3) films with CdSe/CdZnS core/shell quantum dots (QDs), using a soft-chemistry approach that preserves their high quantum yield and other remarkable luminescence properties. Our approach produces MAPbBr3 films of around 100 nm thickness, doped at volume ratios between 0.01 and 1% with colloidal CdSe/CdZnS QDs whose organic ligands were exchanged with halide ions to allow for close contact between the QDs and the perovskite matrix. Ensemble photoluminescence (PL) measurements demonstrate the retained emission of the QDs after incorporation into the MAPbBr3 matrix. Photoluminescence excitation (PLE) spectra exhibit signatures of wavelength-dependent coupling between the CdSe/CdZnS QDs and the MAPbBr3 matrix, i.e., a transfer of charges from matrix to QD, which increases the QD luminescence by up to 150%, or from QD to matrix. Spatially-resolved PL experiments reveal a strong correlation between the positions of QDs and an enhancement of the PL signal of the matrix. Lifetime imaging of the doped films furthermore shows that the emission lifetime of MAPbBr3 is slower in the vicinity of QDs, which, in combination with the increased PL signal of the matrix, suggests that QDs can act as local nucleation seeds that improve the crystallinity of MAPbBr3, thus boosting its emission quantum yield. Luminescence antibunching measurements provide clear evidence of single-photon emission from individual QDs in perovskite. Finally, the analysis of blinking statistics indicates an improvement of the photostability of individual QDs in perovskite as compared to bare CdSe/CdZnS QDs. At high CdSe/CdZnS QD doping levels, this work thus opens a route to hybrid solar concentrators for visible-light harvesting and hybrid-based LEDs, while a low degree of doping could yield hybrid single-photon sources than can be embedded in field-effect devices for single-charge control, which would allow the construction of nanophotonic devices via low-cost solution-processing techniques as an alternative to solid-state quantum dots.
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Affiliation(s)
- Justine Baronnier
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France.
| | - Julien Houel
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France.
| | - Christophe Dujardin
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France.
| | - Florian Kulzer
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France.
| | - Benoît Mahler
- Institut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France.
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4
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Effects of Structural and Microstructural Features on the Total Scattering Pattern of Nanocrystalline Materials. NANOMATERIALS 2022; 12:nano12081252. [PMID: 35457960 PMCID: PMC9030889 DOI: 10.3390/nano12081252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 12/10/2022]
Abstract
Atomic- and nanometer-scale features of nanomaterials have a strong influence on their chemical and physical properties and a detailed description of these elements is a crucial step in their characterization. Total scattering methods, in real and reciprocal spaces, have been established as fundamental techniques to retrieve this information. Although the impact of microstructural features, such as defectiveness of different kinds, has been extensively studied in reciprocal space, disentangling these effects from size- and morphology-induced properties, upon downsizing, is not a trivial task. Additionally, once the experimental pattern is Fourier transformed to calculate the pair distribution function, the direct fingerprint of structural and microstructural features is severely lost and no modification of the histogram of interatomic distances derived therefrom is clearly discussed nor considered in the currently available protocols. Hereby, starting from atomistic models of a prototypical system (cadmium selenide), we simulate multiple effects on the atomic pair distribution function, obtained from reciprocal space patterns computed through the Debye scattering equation. Size and size dispersion effects, as well as different structures, morphologies, and their interplay with several kinds of planar defects, are explored, aiming at identifying the main (measurable and informative) fingerprints of these features on the total scattering pattern in real and reciprocal spaces, highlighting how, and how much, they become evident when comparing different cases. The results shown herein have general validity and, as such, can be further extended to other classes of nanomaterials.
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5
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Mittal M, Dana J, Lübkemann F, Ghosh HN, Bigall NC, Sapra S. Insight into morphology dependent charge carrier dynamics in ZnSe-CdS nanoheterostructures. Phys Chem Chem Phys 2022; 24:8519-8528. [PMID: 35348140 DOI: 10.1039/d1cp05872j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Semiconductor nanoheterostructures (NHSs) are being increasingly used for the photocatalytic conversion of solar energy in which photo-induced charge separation is an essential step and hence it is necessary to understand the effect of various factors such as size, shape, and composition on the charge transfer dynamics. Ultrafast transient absorption spectroscopy is used to investigate the nature and dynamics of photo-induced charge transfer processes in ZnSe-CdS NHSs of different morphologies such as nanospheres (NSs), nanorods (NRs), and nanoplates (NPs). It demonstrates the fast separation of charge carriers and localization of both charges in adjacent semiconductors, resulting in the formation of a charge-separated (CS) state. The lifetime of the charge-separated state follows the order of NSs < NPs < NRs, emphasizing the effect of morphology on the enhancement of photo-induced charge separation and suppression of backward recombination. The separated charge carriers have been utilized in visible light driven hydrogen production and the hydrogen generation activity follows the same order as that for the lifetime of the CS state, underlining the role of charge separation efficiency. Therefore, the variation of the morphology of NHSs plays a significant role in their charge carrier dynamics and hence the photocatalytic hydrogen production activity.
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Affiliation(s)
- Mona Mittal
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India. .,Deparment of Chemistry, University Institute of Science, Chandigarh University, Gharaun, Punjab 140413, India
| | - Jayanta Dana
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai - 400085, India
| | - Franziska Lübkemann
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, D-30167 Hannover, Germany
| | - Hirendra N Ghosh
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Mumbai - 400085, India.,Institute of Nano Science and Technology, Knowledge City, Sector - 81, Mohali, Punjab 140306, India
| | - Nadja C Bigall
- Institute of Physical Chemistry and Electrochemistry, Leibniz Universität Hannover, Callinstraße 3A, D-30167 Hannover, Germany
| | - Sameer Sapra
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India.
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6
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Liu Y, Wang Z, Li L, Gao S, Zheng D, Yu X, Wu Q, Yang Q, Zhu D, Yang W, Xiong Y. Highly efficient quantum-dot-sensitized solar cells with composite semiconductor of ZnO nanorod and oxide inverse opal in photoanode. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140145] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Ou K, Luo J, Wang S, Yi L, Xia Y. Cadmium-Free Nanostructured Multilayer Thin Films with Bright Blue Photoluminescence and Excellent Stability. ACS OMEGA 2021; 6:16869-16875. [PMID: 34250346 PMCID: PMC8264848 DOI: 10.1021/acsomega.1c01481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/11/2021] [Indexed: 06/13/2023]
Abstract
Cadmium-based quantum dots (Cd-QDs) show decent performance for lighting applications due to good color saturation, an excellent high quantum yield, and a narrow full-width at half-maximum. However, the intrinsic toxicity of Cd is a major hindrance to related applications, especially in the biological field. ZnSe, with a band gap of 2.7 eV and lower toxicity than CdSe or CdS, is promising as a blue luminescent material. Herein, we mainly reported the preparation and luminescence properties of nanostructured ZnSe/ZnS multilayer thin films with bright blue photoluminescence. The photoluminescence spectrum contained two emission peaks, located at about 442 nm (near band-edge emission) and 550 nm (defect-related emission), respectively. More importantly, the photoluminescence performance and decay were explored in detail through low-temperature photoluminescence spectra. In addition, the nanostructured ZnSe/ZnS multilayer thin films showed favorable photostability.
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Affiliation(s)
- Kai Ou
- School
of Physical Science and Technology, Southwest
Jiaotong University, Chengdu 610031, China
| | - Jia Luo
- School
of Physical Science and Technology, Southwest
Jiaotong University, Chengdu 610031, China
| | - Shenwei Wang
- Key
Laboratory of Luminescence and Optical Information, Ministry of Education,
Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Lixin Yi
- Key
Laboratory of Luminescence and Optical Information, Ministry of Education,
Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
| | - Yudong Xia
- School
of Physical Science and Technology, Southwest
Jiaotong University, Chengdu 610031, China
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8
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Voltage-assisted SILAR deposition of CdSe quantum dots to construct a high performance of ZnS/CdSe/ZnS quantum dot-sensitized solar cells. J Colloid Interface Sci 2021; 586:640-646. [DOI: 10.1016/j.jcis.2020.10.132] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/28/2020] [Indexed: 01/31/2023]
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9
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Kim SS, Heo JH, Im SH. Wetting-induced formation of void-free metal halide perovskite films by green ultrasonic spray coating for large-area mesoscopic perovskite solar cells. RSC Adv 2020; 10:33651-33661. [PMID: 35519056 PMCID: PMC9056762 DOI: 10.1039/d0ra07261c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 11/24/2022] Open
Abstract
A void-free metal halide perovskite (MHP) layer on a mesoscopic TiO2 (m-TiO2) film was formed via the wetting-induced infiltration of MHP solution in the m-TiO2 film via a green ultrasonic spray coating process using a non-hazardous solvent. The systematic investigation of the behavior of ultrasonic-sprayed MHP micro-drops on the m-TiO2 film disclosed that the void-free MHP layer on the m-TiO2 film can be formed if the following conditions are satisfied: (1) the sprayed micro-drops are merged and wetted in the mesoscopic scaffold of the m-TiO2 film, (2) the MHP solution infiltrated into the m-TiO2 film by wetting is leveled to make a smooth wet MHP film, and (3) the smooth wet MHP film is promptly heat treated to eliminate dewetting and the coffee ring effect by convective flow in order to form a uniform void-free MHP layer. A void-free MHP layer on the m-TiO2 film was formed under optimal ultrasonic spray coating conditions of substrate temperature of ∼30 °C, spray flow rate of ∼11 mL h-1, nozzle to substrate distance of ∼8 cm, and MHP solution-concentration of ∼0.6 M under a fixed scan speed of 30 mm s-1 and purged N2 carrier gas pressure of 0.02 MPa. The mesoscopic MHP solar cells with an aperture area of 0.096, 1, 25, and 100 cm2 exhibited 17.14%, 16.03%, 12.93%, and 10.67% power conversion efficiency at 1 sun condition, respectively.
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Affiliation(s)
- Sang Soo Kim
- Department of Chemical and Biological Engineering, Korea University 145 Anam-ro, Seongbuk-gu Seoul 136-713 Republic of Korea
| | - Jin Hyuck Heo
- Department of Chemical and Biological Engineering, Korea University 145 Anam-ro, Seongbuk-gu Seoul 136-713 Republic of Korea
| | - Sang Hyuk Im
- Department of Chemical and Biological Engineering, Korea University 145 Anam-ro, Seongbuk-gu Seoul 136-713 Republic of Korea
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10
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Givalou L, Tsichlis D, Zhang F, Karagianni CS, Terrones M, Kordatos K, Falaras P. Transition metal – Graphene oxide nanohybrid materials as counter electrodes for high efficiency quantum dot solar cells. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.03.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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11
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Li Z, Yu L, Wang H, Yang H, Ma H. TiO 2 Passivation Layer on ZnO Hollow Microspheres for Quantum Dots Sensitized Solar Cells with Improved Light Harvesting and Electron Collection. NANOMATERIALS 2020; 10:nano10040631. [PMID: 32231107 PMCID: PMC7221611 DOI: 10.3390/nano10040631] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 12/23/2022]
Abstract
Light harvesting and electron recombination are essential factors that influence photovoltaic performance of quantum dots sensitized solar cells (QDSSCs). ZnO hollow microspheres (HMS) as architectures in QDSSCs are beneficial in improving light scattering, facilitating the enhancement of light harvesting efficiency. However, this advantage is greatly weakened by defects located at the surface of ZnO HMS. Therefore, we prepared a composite hollow microsphere structure consisting of ZnO HMS coated by TiO2 layer that is obtained by immersing ZnO HMS architectures in TiCl4 aqueous solution. This TiO2-passivated ZnO HMS architecture is designed to yield good light harvesting, reduced charge recombination, and longer electron lifetime. As a result, the power conversion efficiency (PCE) of QDSSC reaches to 3.16% with an optimal thickness of TiO2 passivation layer, which is much higher when compared to 1.54% for QDSSC based on bare ZnO HMS.
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Affiliation(s)
- Zhen Li
- College of Chemistry and Chemical Engineering, Hexi University, Zhangye City 734000, China; (H.W.); (H.Y.); (H.M.)
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Hexi University, Zhangye City 734000, China
- Correspondence: (Z.L.); (L.Y.)
| | - Libo Yu
- College of Chemistry and Chemical Engineering, Hexi University, Zhangye City 734000, China; (H.W.); (H.Y.); (H.M.)
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Hexi University, Zhangye City 734000, China
- Correspondence: (Z.L.); (L.Y.)
| | - Hao Wang
- College of Chemistry and Chemical Engineering, Hexi University, Zhangye City 734000, China; (H.W.); (H.Y.); (H.M.)
| | - Huiwen Yang
- College of Chemistry and Chemical Engineering, Hexi University, Zhangye City 734000, China; (H.W.); (H.Y.); (H.M.)
| | - Huan Ma
- College of Chemistry and Chemical Engineering, Hexi University, Zhangye City 734000, China; (H.W.); (H.Y.); (H.M.)
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12
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Tian Z, Qi Z, Yang Y, Yan H, Chen Q, Zhong Q. Anchoring CuS nanoparticles on accordion-like Ti3C2 as high electrocatalytic activity counter electrodes for QDSSCs. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00618a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ti3C2/CuS composite has been fabricated as a counter electrode for quantum dot-sensitized solar cells by anchoring CuS nanoparticles on Ti3C2via a facile ion-exchange method at room temperature.
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Affiliation(s)
- Zizun Tian
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Zhonglu Qi
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Yuhao Yang
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Hailong Yan
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Qianqiao Chen
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
| | - Qin Zhong
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- China
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13
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High performance solid-state PbS/CuS hetero-nanostructured quantum dots-sensitized solar cells. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.03.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Jia J, Xue P, Hu X, Wang Y, Liu E, Fan J. Electron-transfer cascade from CdSe@ZnSe core-shell quantum dot accelerates photoelectrochemical H2 evolution on TiO2 nanotube arrays. J Catal 2019. [DOI: 10.1016/j.jcat.2019.05.028] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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15
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Zhang Y, Luo L, Shi Z, Shen X, Peng C, Liu J, Chen Z, Chen Q, Zhang L. Synthesis of MoS
2
/CdS Heterostructures on Carbon‐Fiber Cloth as Filter‐Membrane‐Shaped Photocatalyst for Purifying the Flowing Wastewater under Visible‐Light Illumination. ChemCatChem 2019. [DOI: 10.1002/cctc.201900542] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yan Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry College of Environmental Science and EngineeringDonghua University Shanghai 201620 China
- Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092 China
| | - Li Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry College of Environmental Science and EngineeringDonghua University Shanghai 201620 China
| | - Zhun Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry College of Environmental Science and EngineeringDonghua University Shanghai 201620 China
| | - Xiaofeng Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry College of Environmental Science and EngineeringDonghua University Shanghai 201620 China
| | - Cheng Peng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry College of Environmental Science and EngineeringDonghua University Shanghai 201620 China
- Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092 China
| | - Jianshe Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry College of Environmental Science and EngineeringDonghua University Shanghai 201620 China
- Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092 China
| | - Zhigang Chen
- International joint Laboratory for Advanced Fiber and Low Dimension Materials College of Materials Science and EngineeringDonghua University Shanghai 201620 China
| | - Quanyuan Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry College of Environmental Science and EngineeringDonghua University Shanghai 201620 China
| | - Lisha Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry College of Environmental Science and EngineeringDonghua University Shanghai 201620 China
- Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092 China
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16
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Du XY, Ma K, Cheng R, She XJ, Zhang YW, Wang CF, Chen S, Xu C. Host-guest supramolecular assembly directing beta-cyclodextrin based nanocrystals towards their robust performances. JOURNAL OF HAZARDOUS MATERIALS 2019; 361:329-337. [PMID: 30245255 DOI: 10.1016/j.jhazmat.2018.08.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 08/02/2018] [Accepted: 08/10/2018] [Indexed: 06/08/2023]
Abstract
Fluorescent CdTe nanocrystals (NCs) capped with beta-cyclodextrin (β-CD) are successfully synthesized by host-guest supramolecular assembly of the hydrophobic alkyl chains of N-acetyl-l-cysteine (NAC) on the surface of CdTe NCs and eco-friendly β-CD via the promising simple hydrothermal method in our experiments. The as-prepared NCs display better stability and lower toxicity compared with traditional those only capped with NAC. Specially, cytotoxicity experiments to human umbilical vein endothelial cells in vitro and zebrafish embryo toxicological tests in vivo are performed to determine the toxicity of CdTe NCs. For their practical applications, the promising red-luminescent NCs are employed as stable and low poison red phosphors to fabricate white light-emitting diodes (WLEDs) with remarkable color-rendering index (CRI) being 91.6. This research offers significance for solving the difficulty in toxicity and instability of heavy metal based NCs, which has potential applications in future optoelectronic devices and biomarkers.
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Affiliation(s)
- Xiang-Yun Du
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials and College of Chemical Engineering, Nanjing Tech University (Former Nanjing University of Technology), Nanjing 210009, PR China
| | - Kangzhe Ma
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials and College of Chemical Engineering, Nanjing Tech University (Former Nanjing University of Technology), Nanjing 210009, PR China
| | - Rui Cheng
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials and College of Chemical Engineering, Nanjing Tech University (Former Nanjing University of Technology), Nanjing 210009, PR China
| | - Xing-Jin She
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials and College of Chemical Engineering, Nanjing Tech University (Former Nanjing University of Technology), Nanjing 210009, PR China
| | - Ya-Wen Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials and College of Chemical Engineering, Nanjing Tech University (Former Nanjing University of Technology), Nanjing 210009, PR China
| | - Cai-Feng Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials and College of Chemical Engineering, Nanjing Tech University (Former Nanjing University of Technology), Nanjing 210009, PR China
| | - Su Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials and College of Chemical Engineering, Nanjing Tech University (Former Nanjing University of Technology), Nanjing 210009, PR China.
| | - Chen Xu
- State Key Laboratory of Pharmaceutical Biotechnology and School of Life Sciences, Nanjing University, Nanjing 210023, PR China
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17
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Photovoltaic Performances of Yb Doped CdTe QDs Sensitized TiO2 Photoanodes for Solar cell Applications. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-018-01060-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Kariem Bin Mohd Arof A, Hamdi Bin Ali Buraidah M. Plasmonic Effect in Photoelectrochemical Cells. PLASMONICS 2018. [DOI: 10.5772/intechopen.79580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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19
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Samadpour M. Improving the parameters of electron transport in quantum dot sensitized solar cells through seed layer deposition. RSC Adv 2018; 8:26056-26068. [PMID: 35541957 PMCID: PMC9082740 DOI: 10.1039/c8ra04413a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 07/13/2018] [Indexed: 12/16/2022] Open
Abstract
Here we investigate the effect of seed layer deposition on electron-transport parameters of chemical-bath-deposited (CBD) CdSe quantum dot sensitized solar cells (QDSCs). Fill factors were systematically improved to more than 0.6 through reduced recombination after seed layer deposition. Considering the beneficial effects of seed layer deposition, noticeably higher efficiency values were systematically obtained in cells with the seed layer (2–3.19%) in comparison to cells without a seed layer (0.03–0.46%) depending on the TiO2 photoanode particle size. Electron-transport parameters in cells, including chemical capacitance, recombination resistance, the diffusion coefficient, electron life time and small perturbation diffusion lengths of electrons were examined by modeling the experimental impedance spectroscopy data. We showed that a seed layer enhanced recombination resistance in cells, while the photoanode conduction band position was not affected. Higher diffusion lengths of electrons were obtained after seed layer deposition, correlated to the reduced electron recombination rate by redox electrolyte through seed layer deposition. As a general conclusion we report that while the seed layer generally is deposited to increase light absorption, at the same time this could be applied in order to systematically enhance charge-transport properties in cells and it has a clear application in the optimization of QDSC performance. It is proved that the seed layer deposition could be systematically applied in order to enhance the charge transport in the cells.![]()
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Affiliation(s)
- Mahmoud Samadpour
- Department of Physics, K. N. Toosi University of Technology PO Box 15418-49611 Tehran Iran
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20
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Cuprous Sulfide@Carbon nanostructures based counter electrodes with cadmium sulfide/titania photoanode for liquid junction solar cells. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.05.064] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Interface Passivation Effects on the Photovoltaic Performance of Quantum Dot Sensitized Inverse Opal TiO₂ Solar Cells. NANOMATERIALS 2018; 8:nano8070460. [PMID: 29941828 PMCID: PMC6071099 DOI: 10.3390/nano8070460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 06/19/2018] [Accepted: 06/23/2018] [Indexed: 11/23/2022]
Abstract
Quantum dot (QD)-sensitized solar cells (QDSSCs) are expected to achieve higher energy conversion efficiency than traditional single-junction silicon solar cells due to the unique properties of QDs. An inverse opal (IO)-TiO2 (IO-TiO2) electrode is useful for QDSSCs because of its three-dimensional (3D) periodic nanostructures and better electrolyte penetration compared to the normal nanoparticles (NPs)-TiO2 (NPs-TiO2) electrode. We find that the open-circuit voltages Voc of the QDSSCs with IO-TiO2 electrodes are higher than those of QDSSCs with NPs-TiO2 electrodes. One important strategy for enhancing photovoltaic conversion efficiency of QDSSCs with IO-TiO2 electrodes is surface passivation of photoanodes using wide-bandgap semiconducting materials. In this study, we have proposed surface passivation on IO-TiO2 with ZnS coating before QD deposition. The efficiency of QDSSCs with IO-TiO2 electrodes is largely improved (from 0.74% to 1.33%) because of the enhancements of Voc (from 0.65 V to 0.74 V) and fill factor (FF) (from 0.37 to 0.63). This result indicates that ZnS passivation can reduce the interfacial recombination at the IO-TiO2/QDs and IO-TiO2/electrolyte interfaces, for which two possible explanations can be considered. One is the decrease of recombination at IO-TiO2/electrolyte interfaces, and the other one is the reduction of the back-electron injection from the TiO2 electrode to QDs. All of the above results are effective for improving the photovoltaic properties of QDSSCs.
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Arivarasan A, Bharathi S, Vijayaraj V, Sasikala G, Jayavel R. Evaluation of Reaction Parameters Dependent Optical Properties and Its Photovoltaics Performances of CdTe QDs. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0803-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Ma P, Fang Y, Cheng H, Wang Y, Zhou X, Fang S, Lin Y. NH2-rich silica nanoparticle as a universal additive in electrolytes for high-efficiency quasi-solid-state dye-sensitized solar cells and quantum dot sensitized solar cells. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Xu Y, Chen W, Ding X, Pan X, Hu L, Yang S, Zhu J, Dai S. An ultrathin SiO2 blocking layer to suppress interfacial recombination for efficient Sb2S3-sensitized solar cells. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00076j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An SiO2 thin layer efficiently suppresses the recombination at the TiO2/Sb2S3 interface and enhances the photovoltaic performance of Sb2S3 sensitized solar cells.
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Affiliation(s)
- Yafeng Xu
- Key Laboratory of Photovoltaic and Energy Conservation Materials
- Institute of Applied Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Wenyong Chen
- Key Laboratory of Photovoltaic and Energy Conservation Materials
- Institute of Applied Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Xihong Ding
- Beijing Key Laboratory of Novel Thin Film Solar Cells
- North China Electric Power University
- Beijing 102206
- China
| | - Xu Pan
- Key Laboratory of Photovoltaic and Energy Conservation Materials
- Institute of Applied Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Linhua Hu
- Key Laboratory of Photovoltaic and Energy Conservation Materials
- Institute of Applied Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Shangfeng Yang
- Hefei National Laboratory for Physical Sciences at Microscale
- Key Laboratory of Materials for Energy Conversion
- Chinese Academy of Sciences
- Department of Materials Science and Engineering
- Synergetic Innovation Center of Quantum Information & Quantum Physics
| | - Jun Zhu
- Key Laboratory of Photovoltaic and Energy Conservation Materials
- Institute of Applied Technology
- Hefei Institutes of Physical Science
- Chinese Academy of Sciences
- Hefei 230031
| | - Songyuan Dai
- Beijing Key Laboratory of Novel Thin Film Solar Cells
- North China Electric Power University
- Beijing 102206
- China
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Pan Z, Rao H, Mora-Seró I, Bisquert J, Zhong X. Quantum dot-sensitized solar cells. Chem Soc Rev 2018; 47:7659-7702. [DOI: 10.1039/c8cs00431e] [Citation(s) in RCA: 259] [Impact Index Per Article: 43.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A comprehensive overview of the development of quantum dot-sensitized solar cells (QDSCs) is presented.
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Affiliation(s)
- Zhenxiao Pan
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Huashang Rao
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Iván Mora-Seró
- Institute of Advanced Materials (INAM)
- Universitat Jaume I
- 12006 Castelló
- Spain
| | - Juan Bisquert
- Institute of Advanced Materials (INAM)
- Universitat Jaume I
- 12006 Castelló
- Spain
| | - Xinhua Zhong
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- China
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26
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Wu Q, Hou J, Zhao H, Liu Z, Yue X, Peng S, Cao H. Charge recombination control for high efficiency CdS/CdSe quantum dot co-sensitized solar cells with multi-ZnS layers. Dalton Trans 2018; 47:2214-2221. [DOI: 10.1039/c7dt04356b] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ZnS as an inorganic passivation agent has been proven to be effective in suppressing charge recombination and enhancing power conversion efficiency (PCE) in quantum dot-sensitized solar cells (QDSCs).
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Affiliation(s)
- Qiang Wu
- College of Science/Key Laboratory of Ecophysics and Department of Physics
- Shihezi University
- Shihezi 832003
- P. R. China
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan
| | - Juan Hou
- College of Science/Key Laboratory of Ecophysics and Department of Physics
- Shihezi University
- Shihezi 832003
- P. R. China
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan
| | - Haifeng Zhao
- College of Science/Key Laboratory of Ecophysics and Department of Physics
- Shihezi University
- Shihezi 832003
- P. R. China
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan
| | - Zhiyong Liu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan
- Shihezi University
- Shihezi 832003
- P. R. China
| | - Xuanyu Yue
- College of Science/Key Laboratory of Ecophysics and Department of Physics
- Shihezi University
- Shihezi 832003
- P. R. China
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan
| | - Shanglong Peng
- School of Physical Science and Technology/ Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education
- Lanzhou University
- Lanzhou
- China
| | - Haibin Cao
- College of Science/Key Laboratory of Ecophysics and Department of Physics
- Shihezi University
- Shihezi 832003
- P. R. China
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27
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Kokal RK, Deepa M, Kalluri A, Singh S, Macwan I, Patra PK, Gilarde J. Solar cells with PbS quantum dot sensitized TiO 2-multiwalled carbon nanotube composites, sulfide-titania gel and tin sulfide coated C-fabric. Phys Chem Chem Phys 2017; 19:26330-26345. [PMID: 28936513 DOI: 10.1039/c7cp05582j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Novel approaches to boost quantum dot solar cell (QDSC) efficiencies are in demand. Herein, three strategies are used: (i) a hydrothermally synthesized TiO2-multiwalled carbon nanotube (MWCNT) composite instead of conventional TiO2, (ii) a counter electrode (CE) that has not been applied to QDSCs until now, namely, tin sulfide (SnS) nanoparticles (NPs) coated over a conductive carbon (C)-fabric, and (iii) a quasi-solid-state gel electrolyte composed of S2-, an inert polymer and TiO2 nanoparticles as opposed to a polysulfide solution based hole transport layer. MWCNTs by virtue of their high electrical conductivity and suitably positioned Fermi level (below the conduction bands of TiO2 and PbS) allow fast photogenerated electron injection into the external circuit, and this is confirmed by a higher efficiency of 6.3% achieved for a TiO2-MWCNT/PbS/ZnS based (champion) cell, compared to the corresponding TiO2/PbS/ZnS based cell (4.45%). Nanoscale current map analysis of TiO2 and TiO2-MWCNTs reveals the presence of narrowly spaced highly conducting domains in the latter, which equips it with an average current carrying capability greater by a few orders of magnitude. Electron transport and recombination resistances are lower and higher respectively for the TiO2-MWCNT/PbS/ZnS cell relative to the TiO2/PbS/ZnS cell, thus leading to a high performance cell. The efficacy of SnS/C-fabric as a CE is confirmed from the higher efficiency achieved in cells with this CE compared to the C-fabric based cells. Lower charge transfer and diffusional resistances, slower photovoltage decay, high electrical conductance and lower redox potential impart high catalytic activity to the SnS/C-fabric assembly for sulfide reduction and thus endow the TiO2-MWCNT/PbS/ZnS cell with a high open circuit voltage (0.9 V) and a large short circuit current density (∼20 mA cm-2). This study attempts to unravel how simple strategies can amplify QDSC performances.
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Affiliation(s)
- Ramesh K Kokal
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502285, Sangareddy, Telangana, India.
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Klöckner B, Niederer K, Fokina A, Frey H, Zentel R. Conducting Polymer with Orthogonal Catechol and Disulfide Anchor Groups for the Assembly of Inorganic Nanostructures. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benjamin Klöckner
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Kerstin Niederer
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Ana Fokina
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Rudolf Zentel
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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29
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Wu Q, Cai C, Zhai L, Wang J, Kong F, Yang Y, Zhang L, Zou C, Huang S. Zinc dopant inspired enhancement of electron injection for CuInS2quantum dot-sensitized solar cells. RSC Adv 2017. [DOI: 10.1039/c7ra06659g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The PCE of doped CuInS2QDSCs increased from 5.21% to 5.90%, due to broadened optoelectronic response range and accelerated electron injection.
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Affiliation(s)
- Qinqin Wu
- Zhejiang Key Laboratory of Carbon Materials
- College of Chemistry and Material Engineering
- Wenzhou University
- Wenzhou 325027
- People's Republic of China
| | - Chunqi Cai
- Zhejiang Key Laboratory of Carbon Materials
- College of Chemistry and Material Engineering
- Wenzhou University
- Wenzhou 325027
- People's Republic of China
| | - Lanlan Zhai
- Zhejiang Key Laboratory of Carbon Materials
- College of Chemistry and Material Engineering
- Wenzhou University
- Wenzhou 325027
- People's Republic of China
| | - Jiantao Wang
- Zhejiang Key Laboratory of Carbon Materials
- College of Chemistry and Material Engineering
- Wenzhou University
- Wenzhou 325027
- People's Republic of China
| | - Fantai Kong
- Key Laboratory of Novel Thin Film Solar Cells
- Hefei Institute of Physics Science
- Chinese Academy of Sciences
- Hefei 230088
- People's Republic of China
| | - Yun Yang
- Zhejiang Key Laboratory of Carbon Materials
- College of Chemistry and Material Engineering
- Wenzhou University
- Wenzhou 325027
- People's Republic of China
| | - Lijie Zhang
- Zhejiang Key Laboratory of Carbon Materials
- College of Chemistry and Material Engineering
- Wenzhou University
- Wenzhou 325027
- People's Republic of China
| | - Chao Zou
- Zhejiang Key Laboratory of Carbon Materials
- College of Chemistry and Material Engineering
- Wenzhou University
- Wenzhou 325027
- People's Republic of China
| | - Shaoming Huang
- Zhejiang Key Laboratory of Carbon Materials
- College of Chemistry and Material Engineering
- Wenzhou University
- Wenzhou 325027
- People's Republic of China
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