Journal
ORGANIC ELECTRONICS
Volume 11, Issue 6, Pages 1136-1140Publisher
ELSEVIER
DOI: 10.1016/j.orgel.2010.04.008
Keywords
Chemical bath deposition; Organic thin film solar cells; Titanium oxide
Funding
- Ministry of Education, Culture, Sports, Science and Technology [21686011]
- Ministry of the Environment, Japan [B-0807]
- Grants-in-Aid for Scientific Research [21686011] Funding Source: KAKEN
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Chemical bath deposited titanium oxide (TiOx) as an electron collection layer is introduced between the organic layer and the indium tin oxide (ITO) electrode for improving the performance of inverted bulk-heterojunction organic thin film solar cells with 1 cm(2) active area, where regioregular poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C-61 butyric acid methyl ester (PCBM) were mainly used as the photo-active layer. The uniform and thin TiOx film was easily prepared onto the ITO electrode in air by simple chemical bath deposition method. The cell performance was almost maintained in an ambient atmosphere under continuous light irradiation of 100 h despite non-sealing. The cell with bulk-heterojunction organic thin film consisted of [6.6] diphenyl C-62 bis(butyric acid methyl ester) (bis-PCBM) and P3HT prepared under best condition showed the power conversion efficiency (PCE) of 3.8% under the AM1.5G simulated sunlight. (C) 2010 Elsevier B.V. All rights reserved.
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