[16p-P6-1~32] 12.5 Organic solar cells

[16p-P6-9] Study on Hole Mobility in Liquid Crystalline Phthalocyanine Thin Film Utilizing Photo-CELIV Method

〇Yuki Nishikawa¹, Shigehiro Ikehara¹, Kento Fujita¹, Akihiko Fujii¹, Masanori Ozaki¹ (1.Osaka Univ.)

Keywords:organic semiconductor, phthalocyanine

The hole mobility in the spin-coated thin films of alkyl-substituted phthalocyanine (CnPcH₂), which is promising as a donor material for organic solar cells, has been studied by Photo-CELIV method. The obvious transient current could successfully be obtained by the efficient carrier generation at the interface with C₆₀ accepter layer. The alkyl chain length dependence of the hole mobility has been found, and the hole transport mechanism has been discussed by taking the columnar structure of CnPcH₂ into consideration.