Effects of nanomorphological changes on the performance of solar cells with blends of poly[9,9′-dioctyl-fluorene-co-bithiophene] and a soluble fullerene

Jen Hsien Huang, Zhong Yo Ho, Dhananjay Kekuda, Yung Chang, Chih Wei Chu, Kuo Chuan Ho

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Controlled nanophase segregation within the blended films of a conjugated polymer and a soluble fullerene has enabled us to form a continuous transfer pathway for the carriers, thereby increasing the photocurrent generation for polymer photovoltaic devices. Here, we study the effects of nanomorphological changes on the performance of polymer solar cells using blended films of poly[9,9′-dioctyl-fluorene-co-bithiophene] (F8T2) and [6,6]-phenyl-C61- butyric acid methyl ester (PCBM). Different weight ratios of the F8T2 and PCBM blends in various solvents were studied at different annealing temperatures. The morphology of the films seems to be a strong function of the processing conditions. The power conversion efficiency (PCE) of the photovoltaic devices has improved significantly from 0.34% to 2.14% under air mass 1.5 simulated solar illumination (100 mW cm-2), which could be attributed to the nanomorphological changes in the films.

Original languageEnglish
Article number025202
JournalNanotechnology
Volume20
Issue number2
DOIs
Publication statusPublished - 14-01-2009

Fingerprint

Fullerenes
Solar cells
Butyric acid
Esters
Butyric Acid
Conjugated polymers
Photocurrents
Conversion efficiency
Polymers
Lighting
Annealing
fluorene
Processing
Air
Temperature

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

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abstract = "Controlled nanophase segregation within the blended films of a conjugated polymer and a soluble fullerene has enabled us to form a continuous transfer pathway for the carriers, thereby increasing the photocurrent generation for polymer photovoltaic devices. Here, we study the effects of nanomorphological changes on the performance of polymer solar cells using blended films of poly[9,9′-dioctyl-fluorene-co-bithiophene] (F8T2) and [6,6]-phenyl-C61- butyric acid methyl ester (PCBM). Different weight ratios of the F8T2 and PCBM blends in various solvents were studied at different annealing temperatures. The morphology of the films seems to be a strong function of the processing conditions. The power conversion efficiency (PCE) of the photovoltaic devices has improved significantly from 0.34{\%} to 2.14{\%} under air mass 1.5 simulated solar illumination (100 mW cm-2), which could be attributed to the nanomorphological changes in the films.",
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Effects of nanomorphological changes on the performance of solar cells with blends of poly[9,9′-dioctyl-fluorene-co-bithiophene] and a soluble fullerene. / Huang, Jen Hsien; Ho, Zhong Yo; Kekuda, Dhananjay; Chang, Yung; Chu, Chih Wei; Ho, Kuo Chuan.

In: Nanotechnology, Vol. 20, No. 2, 025202, 14.01.2009.

Research output: Contribution to journalArticle

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AU - Huang, Jen Hsien

AU - Ho, Zhong Yo

AU - Kekuda, Dhananjay

AU - Chang, Yung

AU - Chu, Chih Wei

AU - Ho, Kuo Chuan

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