Enhanced spectral response in polymer bulk heterojunction solar cells by using active materials with complementary spectra

Jen Hsien Huang, Chuan Pei Lee, Zhong Yo Ho, Dhananjay Kekuda, Chih Wei Chu, Kuo Chuan Ho

Research output: Contribution to journalArticle

31 Citations (Scopus)


We have fabricated organic photovoltaic devices with blends of poly[9,9′-dioctyl-fluorene-co-bithiophene] (F8T2) and fullerene as an electron donor and electron acceptor, respectively. A significant improvement of the photovoltaic efficiency was found in device by using active materials with complementary spectra. The different weight ratios of composite film were also performed to correlate between morphology and the device performance. A power conversion efficiency (PCE) up to 2.0% with an open-circuit voltage of 0.85 V and a short-circuit current (JSC) of 5.3 mA/cm2, was achieved by blending the F8T2 with [6,6]-phenyl-C71-butyric acid methyl ester (PC[70]BM).

Original languageEnglish
Pages (from-to)22-28
Number of pages7
JournalSolar Energy Materials and Solar Cells
Issue number1
Publication statusPublished - 01-01-2010


All Science Journal Classification (ASJC) codes

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

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