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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/13011

Title: Horizontally oriented molecular thin films for application in organic solar cells
Authors: Matsushima, Toshinori
Matsuo, Hitoshi
Yamamoto, Tetsuo
Nakao, Akichika
Murata, Hideyuki
Keywords: Molecular orientation
Rubbing technique
Organic solar cell
Exciton diffusion length
HOMO and LUMO levels
Hole and electron transport
Issue Date: 2014-01-29
Publisher: Elsevier
Magazine name: Solar Energy Materials and Solar Cells
Volume: 123
Start page: 81
End page: 91
DOI: 10.1016/j.solmat.2014.01.004
Abstract: The authors investigate the influence of molecular orientation of p-type molecules of alpha-sexithiophene (α-6T) and n-type molecules of 3,4,9,10-perylene tetracarboxylic bisbenzimidazole (PTCBI) on organic solar cell (OSC) performance. Deposition of α-6T and subsequently PTCBI on an α-6T buffer surface rubbed with a nylon cloth allows their horizontal orientations to be formed in separate layers. Power conversion efficiency and operation stability of a rubbed OSC are markedly improved when compared with an unrubbed OSC. The improved OSC performance is confirmed to be due to increases in light absorption, exciton diffusion length, energy difference between the p-type and n-type layers, and carrier collection by electrodes, which are caused by the rubbing-induced double horizontal orientations.
Rights: Copyright (C)2014, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International license (CC BY-NC-ND 4.0). [http://creativecommons.org/licenses/by-nc-nd/4.0/] NOTICE: This is the author's version of a work accepted for publication by Elsevier. Toshinori Matsushima, Hitoshi Matsuo, Tetsuo Yamamoto, Akichika Nakao, Hideyuki Murata, Solar Energy Materials and Solar Cells, 123, 2014, 81-91, http://dx.doi.org/10.1016/j.solmat.2014.01.004
URI: http://hdl.handle.net/10119/13011
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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