Effects of thermal annealing on the efficiency of bulk-heterojunction organic photovoltaic devices

Jin Wook Jeong, Jin Woo Huh, Jeong Ik Lee, Hye Yong Chu, Il Ki Han, Byeong Kwon Ju

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This paper studies the effect of the annealing process on the performance of P3HT/PCBM photovoltaic devices, in terms of their efficiencies. The basic photovoltaic devices are annealed on a hot-plate, at a temperature of 150 °C for 10 min in air. For comparison, the thermal annealing of photovoltaic devices is carried out using rapid thermal annealing (RTA) equipment, at a temperature of 150 °C for 10 min in different environments such as in vacuum, in nitrogen and in argon, individually. The light conversion efficiency (Eff) of the resulting photovoltaic devices increases from 2.29% (hot-plate annealing) to 2.77% after annealing in a vacuum environment. As a result, the organic photovoltaic devices, annealed in a vacuum show enhanced efficiencies compared with those annealed in different gas environments.

Original languageEnglish
Pages (from-to)S520-S524
JournalCurrent Applied Physics
Volume10
Issue numberSUPPL. 3
DOIs
Publication statusPublished - 2010

Keywords

  • Absorption
  • Annealing
  • Morphology
  • Organic solar cells
  • Photovoltaic

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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