Premium
Efficiency enhancement of solid‐state dye sensitized solar cell by in situ deposition of CuI
Author(s) -
Han Jing,
Chen Jin Mao,
Zhou Xiao Wen,
Lin Yuan,
Zhang Jing Bo,
Jia Jian Guang,
Sankapal Babasaheb Raghunath
Publication year - 2008
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.2913
Subject(s) - dye sensitized solar cell , nanocrystalline material , in situ , materials science , nanoporous , solar cell , chemical engineering , energy conversion efficiency , electrochemistry , thin film , deposition (geology) , polystyrene , porosity , electrode , nanotechnology , chemistry , electrolyte , optoelectronics , composite material , organic chemistry , paleontology , sediment , engineering , biology , polymer
Solid‐state dye‐sensitized solar cells based on nanocrystalline TiO 2 thin film with the structures TiO 2 /dye/CuI/Pt and TiO 2 /dye/ In situ CuI/CuI/Pt were developed in order to compare the use of In situ deposited CuI ( In situ CuI). Porosity of the screen‐printed nanoporous TiO 2 thin film was enhanced by the addition of polystyrene balls. Evidence of decrease in interfacial resistance was observed by electrochemical impedance measurement for the device with In situ deposited CuI as compared to that without In situ deposited CuI as hole conductor. This was attributed to good interfacial contacts and better charge transfer between CuI and dye‐sensitized TiO 2 nanoparticles, which resulted in the enhancement of power conversion efficiency from 0.058 to 1.01%. Copyright © 2008 John Wiley & Sons, Ltd.