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The effect of a buffer layer on the photovoltaic properties of solar cells with P3OT:fullerene composites
Cited 25 time in
Web of Science
Cited 29 time in Scopus
- Authors
- Issue Date
- 2005
- Publisher
- Elsevier
- Citation
- Synth. Met. 153 (2005) 97
- Keywords
- Organic solar cell ; Photovoltaic properties ; Buffer layer
- Abstract
- We have studied the effect of buffer layers such as poly(3,4-ethylene dioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), copper phthalocyanine (CuPC), and gold metal on the photovoltaic properties of solar cells with poly(3-octylthiophene) (P3OT):fullerene composites. The device structure is ITO/buffcr/P3OT:C60/BCP/LiF/Al where bathocuproine (BCP) was used as an exciton-blocking layer. The cell with a PEDOT:PSS buffer layer exhibits an open circuit voltage of Voc 0.4 V and the power conversion efficiency of η 1.8%. The incident photon to collected election efficiency (IPCE) is about 30% at 520 nm. The cell with a CuPC buffer layer exhibits slightly higher Voc 0.46 V and power efficiency of η 2.1%. This result indicates that a good buffer layer at the polymer/electrode interfaces can enhance the Voc. and die power conversion efficiency.
- ISSN
- 0379-6779
- Language
- English
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