Horizontally oriented molecular thin films for application in organic solar cells

Toshinori Matsushima; Hitoshi Matsuo; Tetsuo Yamamoto; Akichika Nakao; Hideyuki Murata

doi:10.1016/j.solmat.2014.01.004

Horizontally oriented molecular thin films for application in organic solar cells

Toshinori Matsushima, Hitoshi Matsuo, Tetsuo Yamamoto, Akichika Nakao, Hideyuki Murata

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

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.

Original language	English
Pages (from-to)	81-91
Number of pages	11
Journal	Solar Energy Materials and Solar Cells
Volume	123
DOIs	https://doi.org/10.1016/j.solmat.2014.01.004
Publication status	Published - Apr 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.solmat.2014.01.004

Cite this

@article{cded0f6f2f20421aaae2bc4964a68c11,

title = "Horizontally oriented molecular thin films for application in organic solar cells",

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.",

author = "Toshinori Matsushima and Hitoshi Matsuo and Tetsuo Yamamoto and Akichika Nakao and Hideyuki Murata",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant nos. 25790040 and 20108012 . ",

year = "2014",

month = apr,

doi = "10.1016/j.solmat.2014.01.004",

language = "English",

volume = "123",

pages = "81--91",

journal = "Solar Energy Materials and Solar Cells",

issn = "0927-0248",

publisher = "Elsevier",

}

TY - JOUR

T1 - Horizontally oriented molecular thin films for application in organic solar cells

AU - Matsushima, Toshinori

AU - Matsuo, Hitoshi

AU - Yamamoto, Tetsuo

AU - Nakao, Akichika

AU - Murata, Hideyuki

N1 - Funding Information: This work was supported by JSPS KAKENHI Grant nos. 25790040 and 20108012 .

PY - 2014/4

Y1 - 2014/4

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84893380913&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84893380913&partnerID=8YFLogxK

U2 - 10.1016/j.solmat.2014.01.004

DO - 10.1016/j.solmat.2014.01.004

M3 - Article

AN - SCOPUS:84893380913

SN - 0927-0248

VL - 123

SP - 81

EP - 91

JO - Solar Energy Materials and Solar Cells

JF - Solar Energy Materials and Solar Cells

ER -

Horizontally oriented molecular thin films for application in organic solar cells

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this