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

Title
Effects of thermal annealing on the efficiency of bulk-heterojunction organic photovoltaic devices
Authors
정진욱허진우이정익추혜용한일기주병권
Keywords
Morphology; Absorption; Organic Solar Cells; Photovoltaic; Annealing
Issue Date
2010-05
Publisher
Current applied physics
Citation
VOL 10, NO 3, S520-S524
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 ℃ 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 ℃ for 10 min in different environments such as in vacuum, in nitrogen and in argon, individually. The light conversion efficiency (Eπ) 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.
URI
http://pubs.kist.re.kr/handle/201004/38696
ISSN
1567-1739
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KIST Publication > Article
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