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Enhanced performance of a CuPc: PCBM based solar cell using bathocuproine BCP or nanostructured TiO 2 as hole‐blocking layer
Author(s) -
Derouiche Hassen,
Miled Hatem Ben,
Mohamed Abdelatif Belhadj
Publication year - 2010
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200925424
Subject(s) - materials science , cathode , energy conversion efficiency , photovoltaic system , fullerene , heterojunction , optoelectronics , layer (electronics) , open circuit voltage , solar cell , electrode , blocking (statistics) , voltage , nanotechnology , chemistry , electrical engineering , organic chemistry , engineering , statistics , mathematics
The roles played by a hole‐blocking layer, TiO 2 or BCP are investigated for heterojunction photovoltaic devices based on CuPc and the fullerene derivative PCBM. The insertion of TiO 2 or BCP thin films in the CuPc:PCBM based solar cells resulted in a higher open circuit voltage ( V OC ) and a higher fill factor which is due to the increase in the shunt resistance as well as to the improved collection of the electrons at the aluminum (Al) cathode. The energy conversion efficiency of the device having TiO 2 hole‐blocking layer is two times greater than that having BCP.