Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326517
Type: Artigo
Title: Dye-sensitized Solar Cells Employing Polymers
Author: Yun
Sining; Freitas
Jilian Nei; Nogueira
Ana F.; Wang
Yanmin; Ahmad
Shahzada; Wang
Zhong-Sheng
Abstract: Dye-sensitized solar cells (DSSCs) are of interest due to their potential use as inexpensive and environmentally friendly photovoltaic (PV) devices with acceptable power conversion efficiency (PCE). Platinum (Pt) metal is, traditionally, the preferred material for the counter electrode (CE) component of DSSCs, however, further development of iodide/triiodide (I-/I-3(-)) based liquid-electrolyte DSSCs using Pt remains challenging due to the high cost of this scarce metal and its susceptibility to corrosion. Additional concerns include solvent leakage and low chemical stability resulting from volatile liquid electrolyte used in DSSCs. In order to counteract this issue, polymer electrolytes or hole-transporters with higher mobilities are employed as a replacement for liquid electrolytes. In this regard, polymers can serve as efficient CE materials by replacing the platinized electrode in liquid-electrolyte DSSCs, while also substituting for the liquid electrolytes as polymer electrolytes or hole transporters in solid-state or quasi solid-state DSSCs. Considering the fragility and shape restrictions of glass substrates, polymer substrates may also be used to replace rigid glass substrates, providing more flexible DSSCs. Herein, applications of the polymers as cell components (CEs, polymer electrolytes or hole-transporter, and plastic substrates) in DSSCs are discussed, with special focus on the role that polymers play in DSSCs and widely accepted reports of PV performance. The current understanding of the factors and strategies involved in improving the performance of polymers in DSSCs are reviewed and analyzed. In addition, the benefits, challenges and potential utility of polymers for use in DSSCs are assessed. (C) 2015 Elsevier Ltd. All rights reserved.
Subject: Dye-sensitized Solar Cells
Polymers
Counter Electrodes
Electrolytes
Plastic Substrates
Editor: Pergamon-Elsevier Science LTD
Oxford
Rights: fechado
Identifier DOI: 10.1016/j.progpolymsci.2015.10.004
Address: http://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S0079670015001082
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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