The effect of solvent induced crystallinity of polymer layer on poly(3-hexylthiophene)/C70 bilayer solar cells

Dhananjaya Kekuda, Hao Shing Lin, Meng Chyi Wu, Jen Shein Huang, Kuo Chuan Ho, Chih Wei Chu

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

A bilayer polymer solar cell is demonstrated with the device configuration ITO/PEDOT:PSS/poly(3-hexylthiophene)/C70/Al. In this article, we highlight the importance of polymer surface morphology, its crystallinity and mobility on device output parameters. The solvent used for polymer processing plays a major role in deciding these parameters and it was observed that high boiling point solvents are desirable for achieving large surface roughness of the polymer layer, which in turn provide more interface area in the bilayer device structure. Due to the increased interface area for exciton dissociation, these bilayer devices resulted in a maximum power conversion efficiency of 3.65% under one sun radiation.

Original languageEnglish
Pages (from-to)419-422
Number of pages4
JournalSolar Energy Materials and Solar Cells
Volume95
Issue number2
DOIs
Publication statusPublished - 01-02-2011

Fingerprint

Solar cells
Polymers
Boiling point
Excitons
Sun
Conversion efficiency
Surface morphology
Surface roughness
Radiation
Processing
poly(3-hexylthiophene)
poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)
Polymer solar cells
LDS 751

All Science Journal Classification (ASJC) codes

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

Cite this

Kekuda, Dhananjaya ; Lin, Hao Shing ; Chyi Wu, Meng ; Huang, Jen Shein ; Ho, Kuo Chuan ; Chu, Chih Wei. / The effect of solvent induced crystallinity of polymer layer on poly(3-hexylthiophene)/C70 bilayer solar cells. In: Solar Energy Materials and Solar Cells. 2011 ; Vol. 95, No. 2. pp. 419-422.
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The effect of solvent induced crystallinity of polymer layer on poly(3-hexylthiophene)/C70 bilayer solar cells. / Kekuda, Dhananjaya; Lin, Hao Shing; Chyi Wu, Meng; Huang, Jen Shein; Ho, Kuo Chuan; Chu, Chih Wei.

In: Solar Energy Materials and Solar Cells, Vol. 95, No. 2, 01.02.2011, p. 419-422.

Research output: Contribution to journalArticle

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AU - Kekuda, Dhananjaya

AU - Lin, Hao Shing

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AU - Ho, Kuo Chuan

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AB - A bilayer polymer solar cell is demonstrated with the device configuration ITO/PEDOT:PSS/poly(3-hexylthiophene)/C70/Al. In this article, we highlight the importance of polymer surface morphology, its crystallinity and mobility on device output parameters. The solvent used for polymer processing plays a major role in deciding these parameters and it was observed that high boiling point solvents are desirable for achieving large surface roughness of the polymer layer, which in turn provide more interface area in the bilayer device structure. Due to the increased interface area for exciton dissociation, these bilayer devices resulted in a maximum power conversion efficiency of 3.65% under one sun radiation.

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