[정현석교수님_ADVANCED MATERIALS] Antisolvent with an Ultrawide Processing Window for the One‐Step F > Research Highlight

[정현석교수님_ADVANCED MATERIALS] Antisolvent with an Ultrawide Processing W…

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댓글 6건 조회 2,539회 작성일 21-04-19 13:35

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□ 논문제목: Antisolvent with an Ultrawide Processing Window for the One‐Step Fabrication of Efficient and Large‐Area Perovskite Solar Cells
□ 게재 학술지명: ADVANCED MATERIALS
□ 주저자: 정 현 석
□ IF : 21.95
□ 논문소개
제 1 저자: Pengjun Zhao; Byeong Jo Kim; Xiaodong Ren 기타 저자: Dong Geon Lee; Gi Joo Bang; Jae Bum Jeon; Won Bin Kim
연구 내용:
차세대 광전자 소재인 유무기 복합 페로브스카이트 물질을 사용한 페로브스카이트 태양전지는 단일 소자 효율로 다결정 실리콘 태양전지를 뛰어넘으면서 대면적화, 공정의 표준화 등 산업화를 위한 단계에 접어들고 있다.
본 연구에서는 페로브스카이트 코팅 과정에서 친환경 반용매 (Green anti-solvent) 처리를 통해 전구체 내부에 핵 생성을 촉진하여 재현성 있는 고품질 페로브스카이트 박막 성장 방법을 개발하였다.
공정 과정에서 반용매로 사용된 아니솔 [Anisole, C6H5OCH3]은 페로브스카이트 전구체 용액 내부에서 전구체의 반응을 막는 특정 용매 [dimethyl sulfoxide]와 결합하여 기판에 코팅 된 중간상 내부에 균일한 페로브스카이트 물질의 핵을 생성하고 열처리를 통해 균일한 결정 성장을 촉진한다. 또한, 높은 증기압을 가진 아니솔이 표면에 형성되어 코팅 과정에서 불필요한 용매의 증발을 막아 대면적 박막 형성에 용이하다.
개발한 페로브스카이트 박막 공정 기술을 사용하여 19% 이상의 고효율 페로브스카이트 태양전지 제작에 성공하였으며, ~196 cm2 면적 이상의 대면적 소자 제작 가능성을 보여주었다.

이전글성균관대 원병묵 교수 연구팀 성장기 새치 생성 유도하는 유전자 발견 24.04.18
다음글[최재영, 황동목교수님_Chemical Society Reviews] Direct growth of graphene on rigid and flexible substrates: p 21.04.19

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