期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 93, 期 9, 页码 1613-1617出版社
ELSEVIER
DOI: 10.1016/j.solmat.2009.04.017
关键词
Photovoltaic cell; TiO2; CuPc; C-60; Inverted structure
资金
- NNSFC [50772003, 20461002]
- Natural Science Foundation of Inner Mongolia [200711020203]
Solar cells based on nanoporous TiO2 films With an inverted structure of indium tin oxide (ITO)/TiO2/copper phthalocyanine (CuPc):fullerene (C-60)/CuPc/poly(3,4-oxyethyleneoxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/Au were fabricated. The best overall photovoltaic performance undergoing a series of device optimization was achieved with the device of ITO/dense TiO2 (30 nm)/nanoporous TiO2 (130 nm)/C-60:CuPc (1:6 weight) (20 nm)/CuPc (20 nm)/PEDOT:PSS (50 nm)/Au (30 nm). The device using the nanoporous TiO2 films has better photovoltaic properties compared to those using dense TiO2 films. Higher photovoltaic performances were obtained by introducing a coevaporated layer of C-60:CuPc between TiO2 and CuPc. The stability of inverted structure was better than that of the normal device, which gives a promising way for fabrication of solar cells with improved stability. (C) 2009 Elsevier B.V. All rights reserved.
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