1
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Xu X, Lu C, Wang Y, Bai X, Liu Z, Zhang Y, Hua D. Two dimensional NbSe 2/Nb 2O 5 metal-semiconductor heterostructure-based photoelectrochemical photodetector with fast response and high flexibility. NANOSCALE HORIZONS 2023. [PMID: 37326422 DOI: 10.1039/d3nh00172e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Two dimensional (2D) metal-semiconductor heterostructures are promising for high-performance optoelectronic devices due to fast carrier separation and transportation. Considering the superior metallic characteristics accompanied by high electrical conductivity in NbSe2, surface oxidation provides a facile way to form NbSe2/Nb2O5 metal-semiconductor heterostructures. Herein, size-dependent NbSe2/Nb2O5 nanosheets were achieved by a liquid phase exfoliation method and a gradient centrifugation strategy. These NbSe2/Nb2O5 heterostructure-based photodetectors show high responsivity with 23.21 μA W-1, fast response time of millisecond magnitude, and wide band detection ability in the UV-Vis region. It is noticeable that the photocurrent density is sensitive to the surface oxygen layer due to the oxygen-sensitized photoconduction mechanism. The flexible testing of the NbSe2/Nb2O5 heterostructure-based PEC-type photodetectors exhibits high photodetection performance even after bending and twisting. Beyond that, the solid-state PEC-type NbSe2/Nb2O5 photodetector also achieves relatively stable photodetection and high stability. This work promotes the application of 2D NbSe2/Nb2O5 metal-semiconductor heterostructures in flexible optoelectronic devices.
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Affiliation(s)
- Xiang Xu
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China.
| | - Chunhui Lu
- Institute of Photonics & Photon-Technology, School of Physics, Northwest University, Xi'an 710069, China
| | - Ying Wang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China.
| | - Xing Bai
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China.
| | - Zenghui Liu
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China.
| | - Ying Zhang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China.
| | - Dengxin Hua
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China.
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2
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Joshy D, Narendranath SB, Ismail YA, Periyat P. Recent progress in one dimensional TiO 2 nanomaterials as photoanodes in dye-sensitized solar cells. NANOSCALE ADVANCES 2022; 4:5202-5232. [PMID: 36540125 PMCID: PMC9724613 DOI: 10.1039/d2na00437b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 09/26/2022] [Indexed: 06/17/2023]
Abstract
Exploiting the vast possibilities of crystal and electronic structural modifications in TiO2 based nanomaterials creatively attracted the scientific community to various energy applications. A dye sensitised solar cell, which converts photons into electricity, is considered a viable solution for the generation of electricity. TiO2 nanomaterials were well accepted as photoanode materials in dye-sensitized solar cells, and possess non-toxicity, high surface area, high electron transport rates, fine tuneable band gap, high resistance to photo corrosion and optimum pore size for better diffusion of dye and electrolyte. This review focuses on various aspects of TiO2 nanomaterials as photoanodes in dye-sensitized solar cells. TiO2 photoanode modification via doping and morphological variations were discussed in detail. The impact of various morphologies on the design of TiO2 photoanodes was particularly stressed.
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Affiliation(s)
- Deepak Joshy
- Department of Chemistry, University of Calicut Kerala 673635 India
| | | | - Yahya A Ismail
- Department of Chemistry, University of Calicut Kerala 673635 India
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3
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Enhancing the performance of dye-sensitized solar cell using nano-sized erbium oxide on titanium oxide photoanode by impregnation route. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2021. [DOI: 10.1016/j.jpap.2021.100047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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4
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Joe G, Shin HC. One-Pot Electrochemical Synthesis of Hierarchical Porous Niobium. J ELECTROCHEM SCI TE 2021. [DOI: 10.33961/jecst.2020.01725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Chen Z, Li Z, He W, An Y, Shen L, Dou H, Zhang X. Nb 3O 7F mesocrystals: orientation formation and application in lithium ion capacitors. CrystEngComm 2021. [DOI: 10.1039/d1ce00600b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The formation mechanism of NOF-NCMs is the overlapping effect of etching action of HF and the aggregation of nanowires. Because of novel architecture, the NOF-NCMs possess enhanced kinetic properties and outstanding Li storage performance.
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Affiliation(s)
- Zhijie Chen
- Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - Zhiwei Li
- Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - Wenjie He
- Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - Yufeng An
- Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - Laifa Shen
- Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - Hui Dou
- Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - Xiaogang Zhang
- Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
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6
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Shoji T, Hagiwara M, Fujihara S. Comparative hydrothermal synthesis of CeO 2 crystals for use in light-scattering layers of dye-sensitized solar cells. CrystEngComm 2021. [DOI: 10.1039/d0ce01503b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Light-scattering octahedral CeO2 particles could be used to increase the short-circuit photocurrent density of ZnO-based dye-sensitized solar cells.
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Affiliation(s)
- Takahito Shoji
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Manabu Hagiwara
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Shinobu Fujihara
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
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7
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Wang L, Li Y, Han P, Jiang Y. Facile fabrication of hierarchical p-Ag 2O/n-Nb 2O 5 heterojunction microspheres with enhanced visible-light photocatalytic activity. RSC Adv 2020; 10:22432-22439. [PMID: 35514552 PMCID: PMC9054589 DOI: 10.1039/d0ra04371k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 06/05/2020] [Indexed: 11/21/2022] Open
Abstract
Constructing p-n heterojunction is an efficient strategy to improve the photocatalytic efficiency. Here, we report a hierarchical Ag2O/Nb2O5 heterojunction composite as a novel and efficient visible-light driven photocatalyst. Hierarchical Nb2O5 microspheres were prepared by a hydrothermal method, and then the in situ growth of Ag2O nanoparticles on their surfaces was realized by a simple deposition method. Structural and textural features of the Ag2O/Nb2O5 composites were investigated, revealing that Ag2O nanoparticles were well distributed on the surface of Nb2O5 microspheres. Photocatalytic degradation of rhodamine B (RhB) was significantly enhanced by Ag2O/Nb2O5 photocatalysts under visible light. The optimal Ag/Nb molar ratio was determined to be 0.15 : 1, which yielded a 21.8 times faster degradation rate constant than plain Nb2O5 microspheres and had excellent stability for at least 4 catalytic cycles. The superior photocatalytic performance of Ag2O/Nb2O5 photocatalyst can be ascribed to the hierarchical superstructure as well as the heterojunction between Ag2O and Nb2O5, which facilitated the separation of photogenerated charge carriers. This work has potential application in the future for solving environmental pollution.
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Affiliation(s)
- Lu Wang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 PR China
- Nantong Vocational University Nantong 226007 PR China
| | - Ya Li
- Nantong College of Science and Technology Nantong 226007 PR China
| | - Pingfang Han
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University Nanjing 211816 PR China
| | - Yunxia Jiang
- Nantong College of Science and Technology Nantong 226007 PR China
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8
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Facile synthesis of hollow urchin-like Nb2O5 nanostructures and their performance in dye-sensitized solar cells. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-019-04481-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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9
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Methodologies in Spectral Tuning of DSSC Chromophores through Rational Design and Chemical-Structure Engineering. MATERIALS 2019; 12:ma12244024. [PMID: 31817076 PMCID: PMC6947288 DOI: 10.3390/ma12244024] [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: 10/01/2019] [Revised: 11/20/2019] [Accepted: 12/02/2019] [Indexed: 01/18/2023]
Abstract
The investigation of new photosensitizers for Grätzel-type organic dye-sensitized solar cells (DSSCs) remains a topic of interest for researchers of alternative solar cell materials. Over the past 20 years, considerable and increasing research efforts have been devoted to the design and synthesis of new materials, based on "donor, π-conjugated bridge, acceptor" (D-π-A) organic dye photosensitizers. In this paper, the computational chemistry methods are outlined and the design of organic sensitizers (compounds, dyes) is discussed. With reference to recent literature reports, rational molecular design is demonstrated as an effective process to study structure-property relationships. Examples from established organic dye sensitizer structures, such as TA-St-CA, Carbz-PAHTDDT (S9), and metalloporphyrin (PZn-EDOT), are used as reference structures for an examination of this concept applied to generate systematically modified structural derivatives and hence new photosensitizers (i.e., dyes). Using computer-aided rational design (CARD), the in silico design of new chromophores targeted an improvement in spectral properties via the tuning of electronic structures by substitution of molecular fragments, as evaluated by the calculation of absorption profiles. This mini review provides important rational design strategies for engineering new organic light-absorbing compounds towards improved spectral absorption and related optoelectronic properties of chromophores for photovoltaic applications, including the dye-sensitized solar cell (DSSC).
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10
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Maurya IC, Senapati S, Singh S, Srivastava P, Maiti P, Bahadur L. Effect of Particle Size on the Performance of TiO2
Based Dye-Sensitized Solar Cells. ChemistrySelect 2018. [DOI: 10.1002/slct.201801745] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ishwar Chandra Maurya
- Department of Chemistry; Institute of Science; Banaras Hindu University; Varanasi-221005 INDIA
| | - Sudipta Senapati
- School of Materials Science and Technology; Indian Institute of Technology (Banaras Hindu University); Varanasi-221005 INDIA
| | - Shalini Singh
- Department of Chemistry; Institute of Science; Banaras Hindu University; Varanasi-221005 INDIA
| | - Pankaj Srivastava
- Department of Chemistry; Institute of Science; Banaras Hindu University; Varanasi-221005 INDIA
| | - Pralay Maiti
- School of Materials Science and Technology; Indian Institute of Technology (Banaras Hindu University); Varanasi-221005 INDIA
| | - Lal Bahadur
- Department of Chemistry; Institute of Science; Banaras Hindu University; Varanasi-221005 INDIA
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11
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Hydrothermal synthesis of nanomoss Nb2O5 films and their ultraviolet photodetection performance. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 2018. [DOI: 10.1007/s10854-018-9770-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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12
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Shaikh JS, Shaikh NS, Mali SS, Patil JV, Pawar KK, Kanjanaboos P, Hong CK, Kim JH, Patil PS. Nanoarchitectures in dye-sensitized solar cells: metal oxides, oxide perovskites and carbon-based materials. NANOSCALE 2018; 10:4987-5034. [PMID: 29488524 DOI: 10.1039/c7nr08350e] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Dye-sensitized solar cells (DSSCs) have aroused great interest and been regarded as a potential renewable energy resource among the third-generation solar cell technologies to fulfill the 21st century global energy demand. DSSCs have notable advantages such as low cost, easy fabrication process and being eco-friendly in nature. The progress of DSSCs over the last 20 years has been nearly constant due to some limitations, like poor long-term stability, narrow absorption spectrum, charge carrier transportation and collection losses and poor charge transfer mechanism for regeneration of dye molecules. The main challenge for the scientific community is to improve the performance of DSSCs by using different approaches, like finding new electrode materials with suitable nanoarchitectures, dyes in composition with promising semiconductors and metal quantum dot fluorescent dyes, and cost-effective hole transporting materials (HTMs). This review focuses on DSSC photo-physics, which includes charge separation, effective transportation, collection and recombination processes. Different nanostructured materials, including metal oxides, oxide perovskites and carbon-based composites, have been studied for photoanodes, and counter electrodes, which are crucial to achieve DSSC devices with higher efficiency and better stability.
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Affiliation(s)
- Jasmin S Shaikh
- Thin film materials laboratory, Department of Physics, Shivaji University, Kolhapur 416004, India.
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13
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Bai J, Xue J, Wang R, Zhang Z, Qiu S. Synthesis of novel Au@Void@Nb2O5 core–shell nanocomposites with enhanced photocatalytic activity. Dalton Trans 2018; 47:3400-3407. [DOI: 10.1039/c7dt04582d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel Au@Void@Nb2O5 core–shell nanocomposites have been fabricated through a facile sol–gel method exhibiting efficient photocatalytic performance and excellent durability.
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Affiliation(s)
- Jiaquan Bai
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University
- Changchun 130012
- China
| | - Jiao Xue
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University
- Changchun 130012
- China
| | - Runwei Wang
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University
- Changchun 130012
- China
| | - Zongtao Zhang
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University
- Changchun 130012
- China
| | - Shilun Qiu
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University
- Changchun 130012
- China
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14
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Abood MK, Wahid MHA, Salim ET, Saimon JA. Niobium Pentoxide thin films employ simple colloidal suspension at low preparation temperature. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201716201058] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Sathasivam S, Williamson BAD, Althabaiti SA, Obaid AY, Basahel SN, Mokhtar M, Scanlon DO, Carmalt CJ, Parkin IP. Chemical Vapor Deposition Synthesis and Optical Properties of Nb 2O 5 Thin Films with Hybrid Functional Theoretical Insight into the Band Structure and Band Gaps. ACS APPLIED MATERIALS & INTERFACES 2017; 9:18031-18038. [PMID: 28492079 DOI: 10.1021/acsami.7b00907] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Nb2O5 is an important material able to exist in many polymorphs with unique optical properties and morphologies that are dependent on the synthetic route. Here we report a novel ambient-pressure chemical vapor deposition route to Nb2O5 via aerosol-assisted chemical vapor deposition. The amorphous as-deposited films were annealed in air to obtain the the three most stable crystal structures: orthorhombic, tetragonal, and monoclinic. The films were thoroughly characterized for their material properties, and an in-depth study into the optical properties was carried out using state-of-the-art hybrid functional theory that allowed more insight into the optical properties of the materials.
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Affiliation(s)
- Sanjayan Sathasivam
- Bio Nano Consulting Ltd. , The Gridiron Building, One Pancras Square, London N1C 4AG, U.K
| | | | | | | | | | | | - David O Scanlon
- Diamond Light Source Ltd. , Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
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16
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Li Q, Sun X, Lozano K, Mao Y. Dependence of Photoelectrochemical Properties on Geometry Factors of Interconnected “Caterpillar-like” ZnO Networks. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.162] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Call RW, Alibabaei L, Dillon RJ, Knauf RR, Nayak A, Dempsey JL, Papanikolas JM, Lopez R. Growth and Post-Deposition Treatments of SrTiO3 Films for Dye-Sensitized Photoelectrosynthesis Cell Applications. ACS APPLIED MATERIALS & INTERFACES 2016; 8:12282-12290. [PMID: 27128813 DOI: 10.1021/acsami.6b01289] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Sensitized SrTiO3 films were evaluated as potential photoanodes for dye-sensitized photoelectrosynthesis cells (DSPECs). The SrTiO3 films were grown via pulsed laser deposition (PLD) on a transparent conducting oxide (fluorine-doped tin oxide, FTO) substrate, annealed, and then loaded with zinc(II) 5,10,15-tris(mesityl)-20-[(dihydroxyphosphoryl)phenyl] porphyrin (MPZnP). When paired with a platinum wire counter electrode and an Ag/AgCl reference electrode these sensitized films exhibited photocurrent densities on the order of 350 nA/cm(2) under 0 V applied bias conditions versus a normal hydrogen electrode (NHE) and 75 mW/cm(2) illumination at a wavelength of 445 nm. The conditions of the post-deposition annealing step-namely, a high-temperature reducing atmosphere-proved to be the most important growth parameters for increasing photocurrent in these electrodes.
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Affiliation(s)
- Robert W Call
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Leila Alibabaei
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Robert J Dillon
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Robin R Knauf
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Animesh Nayak
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Jillian L Dempsey
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - John M Papanikolas
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Rene Lopez
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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18
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Xue J, Wang R, Zhang Z, Qiu S. Facile preparation of C, N co-modified Nb2O5 nanoneedles with enhanced visible light photocatalytic activity. Dalton Trans 2016; 45:16519-16525. [DOI: 10.1039/c6dt03548e] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
C, N co-modified niobium pentoxide (Nb2O5) nanoneedles have been successfully synthesized via a facile hydrothermal method with Niobium Chloride (NbCl5) as a precursor and triethylamine as both the carbon and nitrogen source.
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Affiliation(s)
- Jiao Xue
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University
- Changchun 130012
- China
| | - Runwei Wang
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University
- Changchun 130012
- China
| | - Zongtao Zhang
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University
- Changchun 130012
- China
| | - Shilun Qiu
- College of Chemistry and State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University
- Changchun 130012
- China
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19
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Liu X, Yuan R, Liu Y, Zhu S, Lin J, Chen X. Niobium pentoxide nanotube powder for efficient dye-sensitized solar cells. NEW J CHEM 2016. [DOI: 10.1039/c6nj00159a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Niobium pentoxide nanotube powder was obtained by continuous anodization and applied as the photoanode in dye-sensitized solar cells.
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Affiliation(s)
- Xiaolin Liu
- Department of Physics
- Shanghai University of Electric Power
- Shanghai 200090
- China
| | - Renlong Yuan
- Department of Physics
- Shanghai University of Electric Power
- Shanghai 200090
- China
| | - Yongsheng Liu
- Department of Physics
- Shanghai University of Electric Power
- Shanghai 200090
- China
| | - Shu Zhu
- Department of Physics and Astronomy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Jia Lin
- Department of Physics
- Shanghai University of Electric Power
- Shanghai 200090
- China
| | - Xianfeng Chen
- Department of Physics and Astronomy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
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20
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Hu C, Kelm D, Schreiner M, Wollborn T, Mädler L, Teoh WY. Designing Photoelectrodes for Photocatalytic Fuel Cells and Elucidating the Effects of Organic Substrates. CHEMSUSCHEM 2015; 8:4005-4015. [PMID: 26564312 DOI: 10.1002/cssc.201500793] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 08/14/2015] [Indexed: 06/05/2023]
Abstract
Photocatalytic fuel cells (PFCs) are constructed from anodized photoanodes with the aim of effectively converting organic materials into solar electricity. The syntheses of the photoanodes (TiO2 , WO3 , and Nb2 O5 ) were optimized using the statistical 2(k) factorial design. A systematic study was carried out to catalog the influence of eleven types of organic substrate on the photocurrent responses of the photoanodes, showing dependence on the adsorption of the organic substrates and on the associated photocatalytic degradation mechanisms. Strong adsorbates, such as carboxylic acids, generated high photocurrent enhancements. Simple and short-chained molecules, such as formic acid and methanol, are the most efficient in the corresponding carboxylic acid and alcohol groups as a result of their fast degradation kinetics. The TiO2 -based PFC yielded the highest photocurrent and obtainable power, whereas the Nb2 O5 -based PFC achieved the highest open-circuit voltage, which is consistent with its most negative Fermi level.
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Affiliation(s)
- Chenyan Hu
- Clean Energy and Nanotechnology (CLEAN) Laboratory, School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
| | - Denis Kelm
- Clean Energy and Nanotechnology (CLEAN) Laboratory, School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
- Department of Production Engineering, University of Bremen, Bremen, Germany
| | - Manuel Schreiner
- Clean Energy and Nanotechnology (CLEAN) Laboratory, School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
- Department of Production Engineering, University of Bremen, Bremen, Germany
| | - Tobias Wollborn
- Clean Energy and Nanotechnology (CLEAN) Laboratory, School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR
- Department of Production Engineering, University of Bremen, Bremen, Germany
| | - Lutz Mädler
- Department of Production Engineering, University of Bremen, Bremen, Germany
| | - Wey Yang Teoh
- Clean Energy and Nanotechnology (CLEAN) Laboratory, School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR.
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21
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Mincuzzi G, Palma AL, Di Carlo A, Brown TM. Laser Processing in the Manufacture of Dye-Sensitized and Perovskite Solar Cell Technologies. ChemElectroChem 2015. [DOI: 10.1002/celc.201500389] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Girolamo Mincuzzi
- C.H.O.S.E. (Centre for Hybrid and Organic Solar Energy); Department of Electronic Engineering; University of Rome “Tor Vergata”; Via del Politecnico 1 00133 Rome Italy
- ALPHANOV; Institut d'Optique d'Aquitaine; rue François Mitterrand 33400 Talence France
| | - Alessandro L. Palma
- C.H.O.S.E. (Centre for Hybrid and Organic Solar Energy); Department of Electronic Engineering; University of Rome “Tor Vergata”; Via del Politecnico 1 00133 Rome Italy
| | - Aldo Di Carlo
- C.H.O.S.E. (Centre for Hybrid and Organic Solar Energy); Department of Electronic Engineering; University of Rome “Tor Vergata”; Via del Politecnico 1 00133 Rome Italy
| | - Thomas M. Brown
- C.H.O.S.E. (Centre for Hybrid and Organic Solar Energy); Department of Electronic Engineering; University of Rome “Tor Vergata”; Via del Politecnico 1 00133 Rome Italy
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22
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Gao S, Fan RQ, Wang XM, Qiang LS, Wei LG, Wang P, Yang YL, Wang YL. Advanced Cd(II) complexes as high efficiency co-sensitizers for enhanced dye-sensitized solar cell performance. Dalton Trans 2015; 44:18187-95. [PMID: 26419745 DOI: 10.1039/c5dt02951a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
This work reports on two new complexes with the general formula [Cd3(IBA)3(Cl)2(HCOO)(H2O)]n (1) and {[Cd1.5(IBA)3(H2O)6]·3.5H2O}n (2), which can be synthesized by the reaction of Cd(II) with rigid linear ligand 4-HIBA containing imidazolyl and carboxylate functional groups [4-HIBA = 4-(1H-imidazol-1-yl)benzoic acid]. Single-crystal X-ray diffraction analyses indicate that complex 1 is a 2D "wave-like" layer structure constructed from trinuclear units and complex 2 is just a mononuclear structure. Surprisingly, both complexes 1 and 2 appear as a 3D supramolecular network via intermolecular hydrogen bonding interactions. What's more, due to their strong UV-visible absorption, 1 and 2 can be employed as co-sensitizers in combination with N719 to enhance dye-sensitized solar cell (DSSC) performance. Both of them could overcome the deficiency of the ruthenium complex N719 absorption in the region of ultraviolet and blue-violet, and the charge collection efficiency is also improved when 1 and 2 are used as co-sensitizers, which are all in favor of enhancing the performance. The DSSC devices using co-sensitizers of 1/N719 and 2/N719 show an overall conversion efficiency of 8.27% and 7.73% with a short circuit current density of 17.48 mA cm(-2) and 17.39 mA cm(-2), and an open circuit voltage of 0.75 V and 0.74 V, respectively. The overall conversion efficiency is 27.23% and 18.92% higher than that of a device solely sensitized by N719 (6.50%). Consequently, the prepared complexes are high efficiency co-sensitizers for enhancing the performance of N719 sensitized solar cells.
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Affiliation(s)
- Song Gao
- Department of Chemistry, Harbin Institute of Technology, Harbin 150001, P. R. China.
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23
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Naguib M, Mashtalir O, Lukatskaya MR, Dyatkin B, Zhang C, Presser V, Gogotsi Y, Barsoum MW. One-step synthesis of nanocrystalline transition metal oxides on thin sheets of disordered graphitic carbon by oxidation of MXenes. Chem Commun (Camb) 2015; 50:7420-3. [PMID: 24821374 DOI: 10.1039/c4cc01646g] [Citation(s) in RCA: 241] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Herein we show that heating 2D Ti3C2 in air results in TiO2 nanocrystals enmeshed in thin sheets of disordered graphitic carbon structures that can handle extremely high cycling rates when tested as anodes in lithium ion batteries. Oxidation of 2D Ti3C2 in either CO2 or pressurized water also resulted in TiO2-C hybrid structures. Similarly, other hybrids can be produced, as we show here for Nb2O5/C from 2D Nb2C.
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Affiliation(s)
- Michael Naguib
- Department of Materials Science & Engineering, Drexel University, Philadelphia, PA 19104, USA.
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24
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Garvey TR, Farnum BH, Lopez R. Pulsed laser deposited porous nano-carpets of indium tin oxide and their use as charge collectors in core-shell structures for dye sensitized solar cells. NANOSCALE 2015; 7:2400-2408. [PMID: 25563519 DOI: 10.1039/c4nr05793g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Porous In2O3:Sn (ITO) films resembling from brush carpets to open moss-like discrete nanostructures were grown by pulsed laser deposition under low to high background gas pressures, respectively. The charge transport properties of these mesoporous substrates were probed by pulsed laser photo-current and -voltage transient measurements in N719 dye sensitized devices. Although the cyclic voltammetry and dye adsorption measurements suggest a lower proportion of electro-active dye molecules for films deposited at the high-end background gas pressures, the transient measurements indicate similar electron transport rates within the films. Solar cell operation was achieved by the deposition of a conformal TiO2 shell layer by atomic layer deposition (ALD). Much of the device improvement was shown to be due to the TiO2 shell blocking the recombination of photoelectrons with the electrolyte as recombination lifetimes increased drastically from a few seconds in uncoated ITO to over 50 minutes in the ITO with a TiO2 shell layer. Additionally, an order of magnitude increase in the electron transport rate in ITO/TiO2 (core/shell) films was observed, giving the core-shell structure a superior ratio of recombination/transport times.
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Affiliation(s)
- Timothy R Garvey
- Department of Applied Physical Sciences, University of North Carolina, Chapel Hill, NC 27599, USA.
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25
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Wang W, Tadé MO, Shao Z. Research progress of perovskite materials in photocatalysis- and photovoltaics-related energy conversion and environmental treatment. Chem Soc Rev 2015; 44:5371-408. [DOI: 10.1039/c5cs00113g] [Citation(s) in RCA: 598] [Impact Index Per Article: 66.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Perovskite materials are shown to be active in the applications of photocatalysis- and photovoltaics-related energy conversion and environmental treatment.
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Affiliation(s)
- Wei Wang
- Department of Chemical Engineering
- Curtin University
- Perth
- Australia
| | - Moses O. Tadé
- Department of Chemical Engineering
- Curtin University
- Perth
- Australia
| | - Zongping Shao
- Department of Chemical Engineering
- Curtin University
- Perth
- Australia
- State Key Laboratory of Materials-Oriented Chemical Engineering
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26
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Kharisov BI, Kharissova OV, García BO, Méndez YP, de la Fuente IG. State of the art of nanoforest structures and their applications. RSC Adv 2015. [DOI: 10.1039/c5ra22738k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Forest-like nanostructures, their syntheses, properties, and applications are reviewed.
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27
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A Review on Current Status of Stability and Knowledge on Liquid Electrolyte-Based Dye-Sensitized Solar Cells. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/939525] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The purpose of this review is to gather the current background in materials development and provide the reader with an accurate image of today’s knowledge regarding the stability of dye-sensitized solar cells. This contribution highlights the literature from the 1970s to the present day on nanostructured TiO2, dye, Pt counter electrode, and liquid electrolyte for which this review is focused on.
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28
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Shaikh SF, Mane RS, Joo OS. Mass scale sugar-mediated green synthesis and DSSCs application of tin oxide nanostructured photoanode: Effect of zinc sulphide layering on charge collection efficiency. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.08.146] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Sun K, Shen S, Liang Y, Burrows PE, Mao SS, Wang D. Enabling Silicon for Solar-Fuel Production. Chem Rev 2014; 114:8662-719. [DOI: 10.1021/cr300459q] [Citation(s) in RCA: 284] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - Shaohua Shen
- International
Research Center for Renewable Energy, State Key Lab of Multiphase
Flow in Power Engineering, Xi’an Jiaotong University, Xi’an,
Shaanxi 710049, China
- Department
of Mechanical Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Yongqi Liang
- Department
of Chemistry, Chemical Biological Center, Umeå University, Linnaeus
väg, 6 901 87 Umeå, Sweden
| | - Paul E. Burrows
- Department
of Mechanical Engineering, University of California at Berkeley, Berkeley, California 94720, United States
- Samuel Mao Institute of New Energy, Science Hall, 1003 Shangbu Road, Shenzhen, 518031, China
| | - Samuel S. Mao
- Department
of Mechanical Engineering, University of California at Berkeley, Berkeley, California 94720, United States
- Samuel Mao Institute of New Energy, Science Hall, 1003 Shangbu Road, Shenzhen, 518031, China
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30
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Du L, Long Z, Wen H, Ge W, Zhou Y, Wang J. (Ionic liquid)-derived morphology control of Nb2O5materials and their photocatalytic properties. CrystEngComm 2014. [DOI: 10.1039/c4ce00987h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Huang H, Wang C, Huang J, Wang X, Du Y, Yang P. Structure inherited synthesis of N-doped highly ordered mesoporous Nb2O5 as robust catalysts for improved visible light photoactivity. NANOSCALE 2014; 6:7274-7280. [PMID: 24847865 DOI: 10.1039/c4nr00505h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Highly ordered N-doped mesoporous niobium oxide (NMNb) was prepared via a facile solid state reaction method using urea as a nitrogen source. The mesoporous structure of niobium oxide (MNb) is beneficial to the N dopant that is effectively incorporated into the lattice of MNb, resulting in a significantly enhanced visible light response. The hydrogen generation efficiency over the optimized N-doped MNb photocatalyst was 14.8 times as high as that from N-P25 under 5 h visible light irradiation. The improved photocatalytic activity of NMNb was mainly due to the fact that the inherited ordered mesostructure of NMNb could offer more active sites for the photocatalytic reaction, as well as accelerate the photogenerated electron-hole pair transfer and separation.
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Affiliation(s)
- Hui Huang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
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32
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Chandiran AK, Abdi-Jalebi M, Nazeeruddin MK, Grätzel M. Analysis of electron transfer properties of ZnO and TiO2 photoanodes for dye-sensitized solar cells. ACS NANO 2014; 8:2261-8. [PMID: 24552648 DOI: 10.1021/nn405535j] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Mesoporous TiO2 nanoparticle films are used as photoanodes for high-efficiency dye-sensitized solar cells (DSCs). In spite of excellent photovoltaic power conversion efficiencies (PCEs) displayed by titanium dioxide nanoparticle structures, the transport rate of electrons is known to be low due to low electron mobility. So the alternate oxides, including ZnO, that possesses high electron mobility are being investigated as potential candidates for photoanodes. However, the PCE with ZnO is still lower than with TiO2, and this is typically attributed to the low internal surface area. In this work, we attempt to make a one-to-one comparison of the photovoltaic performance and the electron transfer dynamics involved in DSCs, with ZnO and TiO2 as photoanodes. Previously such comparative investigations were hampered due to the morphological differences (internal surface area, pore diameter, porosity) that exist between zinc oxide and titanium dioxide films. We circumvent this issue by depositing different thicknesses of these oxides, by atomic layer deposition (ALD), on an arbitrary mesoporous insulating template and subsequently using them as photoanodes. Our results reveal that at an optimal thickness ZnO exhibits photovoltaic performances similar to TiO2, but the internal electron transfer properties differ. The higher photogenerated electron transport rate contributed to the performances of ZnO, but in the case of TiO2, it is the low recombination rate, higher dye loading, and fast electron injection.
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Affiliation(s)
- Aravind Kumar Chandiran
- Laboratory of Photonics and Interfaces, Swiss Federal Institute of Technology (EPFL) , Station 6, Lausanne, CH 1015, Switzerland
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33
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Jin X, Liu C, Xu J, Wang Q, Chen D. Size-controlled synthesis of mesoporous Nb2O5 microspheres for dye sensitized solar cells. RSC Adv 2014. [DOI: 10.1039/c4ra06101b] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Uniform size-tunable mesoporous Nb2O5 microspheres for efficient dye sensitized solar cells were obtained at different reactant concentrations.
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Affiliation(s)
- Xiujuan Jin
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, China
| | - Chenliang Liu
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, China
| | - Jing Xu
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, China
| | - Qiufan Wang
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, China
| | - Di Chen
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information
- Huazhong University of Science and Technology
- Wuhan 430074, China
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34
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Liang J, Zhang G, Sun W. Post-treatment on dye-sensitized solar cells with TiCl4 and Nb2O5. RSC Adv 2014. [DOI: 10.1039/c3ra46188b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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Hara Y, Garvey T, Alibabaei L, Ghosh R, Lopez R. Controlled seeding of laser deposited Ta:TiO2 nanobrushes and their performance as photoanode for dye sensitized solar cells. ACS APPLIED MATERIALS & INTERFACES 2013; 5:13140-13145. [PMID: 24320886 DOI: 10.1021/am404176q] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Hexagonal patterned indium tin oxide (ITO) with a height of 1.5 μm was fabricated on fluorinated SnO2 (FTO) substrate via nanoimprint lithography and pulsed laser deposition (PLD). Tantalum doped TiO2 was deposited on the patterned substrate by PLD. The film of Ta:TiO2 grew vertically and separately on the patterned ITO and formed a brush-like structure. Dye-sensitized solar cells with the Ta:TiO2 film deposited on the patterned substrate as well as flat FTO substrate for comparison were fabricated and tested. The device with the patterned substrate showed a 25% increase in short circuit current (Jsc) compared to the one with flat FTO substrate. Optical and photoelectrochemical characterization techniques were performed to investigate the improvement. The increase of Jsc was attributed to the enhancements of light absorption in the 600-750 nm range and collection of excited electrons by the brush-like structure and the patterned ITO, respectively.
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Affiliation(s)
- Yukihiro Hara
- Department of Physics and Astronomy and ‡Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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36
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Passoni L, Ghods F, Docampo P, Abrusci A, Martí-Rujas J, Ghidelli M, Divitini G, Ducati C, Binda M, Guarnera S, Li Bassi A, Casari CS, Snaith HJ, Petrozza A, Di Fonzo F. Hyperbranched quasi-1D nanostructures for solid-state dye-sensitized solar cells. ACS NANO 2013; 7:10023-10031. [PMID: 24180577 DOI: 10.1021/nn403979h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this work we demonstrate hyperbranched nanostructures, grown by pulsed laser deposition, composed of one-dimensional anatase single crystals assembled in arrays of high aspect ratio hierarchical mesostructures. The proposed growth mechanism relies on a two-step process: self-assembly from the gas phase of amorphous TiO2 clusters in a forest of tree-shaped hierarchical mesostructures with high aspect ratio; oriented crystallization of the branches upon thermal treatment. Structural and morphological characteristics can be optimized to achieve both high specific surface area for optimal dye uptake and broadband light scattering thanks to the microscopic feature size. Solid-state dye sensitized solar cells fabricated with arrays of hyperbranched TiO2 nanostructures on FTO-glass sensitized with D102 dye showed a significant 66% increase in efficiency with respect to a reference mesoporous photoanode and reached a maximum efficiency of 3.96% (among the highest reported for this system). This result was achieved mainly thanks to an increase in photogenerated current directly resulting from improved light harvesting efficiency of the hierarchical photoanode. The proposed photoanode overcomes typical limitations of 1D TiO2 nanostructures applied to ss-DSC and emerges as a promising foundation for next-generation high-efficiency solid-state devices comprosed of dyes, polymers, or quantum dots as sensitizers.
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Affiliation(s)
- Luca Passoni
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia , Via Giovanni Pascoli, 70/3, 20133 Milano, Italy
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37
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Shaikh SMF, Rahman G, Mane RS, Joo OS. Bismuth oxide nanoplates-based efficient DSSCs: Influence of ZnO surface passivation layer. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.08.066] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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38
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Chen HY, Zhang TL, Fan J, Kuang DB, Su CY. Electrospun hierarchical TiO2 nanorods with high porosity for efficient dye-sensitized solar cells. ACS APPLIED MATERIALS & INTERFACES 2013; 5:9205-9211. [PMID: 23962052 DOI: 10.1021/am402853q] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Ultraporous anatase TiO2 nanorods with a composite structure of mesopores and macropores fabricated via a simple microemulsion electrospinning approach were first used as photoanode materials for high-efficiency dye-sensitized solar cells (DSSCs). The special multiscale porous structure was formed by using low-cost paraffin oil microemulsion droplets as the soft template, which can not only provide enhanced adsorption sites for dye molecules but also facilitate the electrolyte diffusion. The morphology, porosity, and photovoltaic and electron dynamic characteristics of the porous TiO2 nanorod based DSSCs were investigated in detail by scanning electron microscopy (SEM), N2 sorption measurements, current density-voltage (J-V) curves, UV-vis diffuse reflectance spectra, electrochemical impedance spectroscopy (EIS), intensity modulated photocurrent/photovoltage spectroscopy (IMPS/IMVS), and open-circuit voltage decay (OCVD) measurements. The results revealed that, although fewer amounts of dyes were anchored on the porous TiO2 nanorod films, they exhibited stronger light scattering ability, fast electrolyte diffusion, and extended electron lifetime compared to the commercial P25 nanoparticles. A power conversion efficiency of 6.07% was obtained for the porous TiO2 nanorod based DSSCs. Moreover, this value can be further improved to 8.53% when bilayer structured photoanode with porous TiO2 nanorods acting as the light scattering layer was constructed. This study demonstrated that the porous TiO2 nanorods can work as promising photoanode materials for DSSCs.
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Affiliation(s)
- Hong-Yan Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University , Guangzhou, Guangdong 510275, P. R. China
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39
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Rawolle M, Sarkar K, Niedermeier MA, Schindler M, Lellig P, Gutmann JS, Moulin JF, Haese-Seiller M, Wochnik AS, Scheu C, Müller-Buschbaum P. Infiltration of polymer hole-conductor into mesoporous titania structures for solid-state dye-sensitized solar cells. ACS APPLIED MATERIALS & INTERFACES 2013; 5:719-729. [PMID: 23273246 DOI: 10.1021/am302255c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The degree of filling of titania nanostructures with a solid hole-conducting material is important for the performance of solid-state dye-sensitized solar cells (ssDSSCs). Different ways to infiltrate the hole-conducting polymer poly(3-hexylthiophene) (P3HT) into titania structures, both granular structures as they are already applied commercially and tailored sponge nanostructures, are investigated. The solar cell performance is compared to the morphology determined with scanning electron microscopy (SEM) and time-of-flight grazing incidence small-angle neutron scattering (TOF-GISANS). The granular titania structure, commonly used for ssDSSCs, shows a large distribution of particle and pore sizes, with porosities in the range from 41 to 67%, including even dense parts without pores. In contrast, the tailored sponge nanostructure has well-defined pore sizes of 25 nm with an all-over porosity of 54%. Filling of the titania structures with P3HT by solution casting results in a mesoscopic P3HT overlayer and consequently a bad solar cell performance, even though a filling ratio of 67% is observed. For the infiltration by repeated spin coating, only 57% pore filling is achieved, whereas filling by soaking in the solvent with subsequent spin coating yields filling as high as 84% in the case of the tailored titania sponge structures. The granular titania structure is filled less completely than the well-defined porous structures. The solar cell performance is increased with an increasing filling ratio for these two ways of infiltration. Therefore, filling by soaking in the solvent with subsequent spin coating is proposed.
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Affiliation(s)
- Monika Rawolle
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Strasse 1, 85748 Garching, Germany
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40
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Ghosh R, Hara Y, Alibabaei L, Hanson K, Rangan S, Bartynski R, Meyer TJ, Lopez R. Increasing photocurrents in dye sensitized solar cells with tantalum-doped titanium oxide photoanodes obtained by laser ablation. ACS APPLIED MATERIALS & INTERFACES 2012; 4:4566-4570. [PMID: 22869506 DOI: 10.1021/am300938g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Laser ablation is employed to produce vertically aligned nanostructured films of undoped and tantalum-doped TiO(2) nanoparticles. Dye-sensitized solar cells using the two different materials are compared. Tantalum-doped TiO(2) photoanode show 65% increase in photocurrents and around 39% improvement in overall cell efficiency compared to undoped TiO(2). Electrochemical impedance spectroscopy, Mott-Schottky analysis and open circuit voltage decay is used to investigate the cause of this improved performance. The enhanced performance is attributed to a combination of increased electron concentration in the semiconductor and a reduced electron recombination rate.
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Affiliation(s)
- Rudresh Ghosh
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina, USA
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41
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Kim YT, Park J, Kim S, Park DW, Choi J. Fabrication of hierarchical ZnO nanostructures for dye-sensitized solar cells. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.06.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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42
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Lee Y, Cho CY, Ha SJ, Kim HN, Moon JH. Bottom-up growth of hierarchical electrodes for highly efficient dye-sensitized solar cells. ACS APPLIED MATERIALS & INTERFACES 2012; 4:3589-3595. [PMID: 22738020 DOI: 10.1021/am300664x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The nonconventional bottom-up growth of TiO2 was first demonstrated in the preparation of hierarchical TiO2 electrodes for use in highly efficient dye-sensitized solar cells. The simple immersion of a substrate in a precursor solution enabled the growth of TiO2 particulate films. Here, we have implemented a hierarchical growth strategy in which two stages of controlled growth yielded first macroscale TiO2 particles, followed by mesoscale TiO2 particles. We successfully fabricated electrode films up to 20 μm thick via a growth rate of 0.3 μm/min. The specific area of the electrodes was controlled via the deposition of mesoscale TiO2 particles. The deposited particles displayed a rutile phase with an average size of several tens of nanometers in diameter, as confirmed by XRD and high-resolution TEM imaging. After depositing the second layer of mesoscale TiO2 particles, the photocurrent density increased by a factor of 3. A maximum efficiency of 6.84% was obtained for the hierarchically structured TiO2 electrodes under 1 sun illumination. The hierarchical TiO2 electrodes were compared with macroporous TiO2 electrodes, revealing that the higher photocurrent density could be attributed to a longer electron recombination lifetime and a high specific area. The longer recombination lifetime was supported by the presence of fewer defective TiO2 surfaces, as confirmed by the XPS spectrum.
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Affiliation(s)
- Youngshin Lee
- Department of Chemical and Biomolecular Engineering, Sogang University , Seoul 121-742, South Korea
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43
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Zhang H, Wang Y, Yang D, Li Y, Liu H, Liu P, Wood BJ, Zhao H. Directly hydrothermal growth of single crystal Nb3O7(OH) nanorod film for high performance dye-sensitized solar cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:1598-1603. [PMID: 22354561 DOI: 10.1002/adma.201104650] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 01/29/2012] [Indexed: 05/31/2023]
Abstract
Hydrothermal growth of high crystallinity Nb(3) O(7) (OH) single crystal nanorod film onto FTO substrate is directly used as the photoanode for DSSCs without calcination. The resultant DSSCs possess an impressive overall efficiency of 6.77%, the highest among all reported DSSCs assembled by niobium oxide-based photoanodes.
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Affiliation(s)
- Haimin Zhang
- Centre for Clean Environment and Energy and Griffith School of Environment, Griffith University, Gold Coast Campus, QLD 4222, Australia
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Agrawal S, English NJ, Thampi KR, MacElroy JMD. Perspectives on ab initio molecular simulation of excited-state properties of organic dye molecules in dye-sensitised solar cells. Phys Chem Chem Phys 2012; 14:12044-56. [PMID: 22847552 DOI: 10.1039/c2cp42031g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Saurabh Agrawal
- The SFI Strategic Research Cluster in Solar Energy Conversion and Centre for Synthesis and Chemical Biology, School of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin 4, Ireland
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Shang G, Wu J, Tang S, Huang M, Lan Z, Li Y, Zhao J, Zhang X. Preparation of hierarchical tin oxide microspheres and their application in dye-sensitized solar cells. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm33897a] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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