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Korean Chemical Engineering Research,
Vol.51, No.1, 157-161, 2013
Vol.51, No.1, 157-161, 2013
식물에서 추출한 천연 쿠마린계 염료를 이용한 염료감응 태양전지의 제조
Preparation of Dye Sensitized Solar Cell Using Coumarin Dyes Extracted from Plants
쿠마린 성분이 포함된 식물로부터 염료감응 태양전지에 사용되는 저렴하고 친환경적인 천연 염료를 개발하였다. 염료는 쿠마린 유도체가 포함된 계피와 당귀로부터 추출하였으며 이를 이용하여 염료감응 태양전지를 제작하였다. 계피염료로부터 0.75%의 태양전지 효율을 얻었으며, 이는 기존 천연염료 태양전지에 관한 연구 결과와 비교하여 최고 수준임을 확인하였다. 아울러 자외선-가시광선 분광분석 및 푸리에변환 적외선 분석을 이용하여 식물에 포한된 쿠마린 유도체가 광감응 물질임을 확인하였다.
Low priced and environment-friendly natural dye from coumarin- containing plants for the dye sensitized solar cell (DSSC) was developed. Dyes were extracted from cinnamon and angelica that contained coumarin derivatives, and DSSCs employing these dyes were prepared. PV efficiency of 0.75% was obtained from cinnamon dye, which is comparable to the highest efficiency reported in precedent studies about natural dye DSSC. It was confirmed by UVvisible
and FT-IR spectroscopy that coumarin derivatives in the plants acted as photosensitive material.
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