박막 태양전지(Thin Film Solar Cells)는 기존의 결정질 실리콘 태양전지와는 달리 유리 등 저가의 기반을 활용하고 표면에 박막으로 실리콘 등 재료를 증축시킨 2세대 태양전지이다. 그동안 변환효율이 실리콘형보다 낮아 건물 외벽이나 기둥 등 일부 용도에만 사용이 국한되었다. 그러나 최근 들어 제조과정에 에너지가 적게 소모되어 짧은 기간 내에 투자비용을 회수할 수 있고, 소재비용도 대폭 줄일 수 있는 등 뛰어난 경제성으로 인해 태양전지 업체들이 투자를 늘리고 신규업체가 진입하는 등 박막 태양전지가 유망 태양전지 아이템으로 부상하고 있다.
KSP Keywords
Thin film solar cells, thin film(TF)
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