| 학회 |
한국재료학회 |
| 학술대회 |
2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 |
27권 2호 |
| 발표분야 |
C. 에너지 재료 분과 |
| 제목 |
Suitable Anti-solvent for Depositing Uniform Perovskite Regardless of Relative Humidity of Ambient Air |
| 초록 |
Perovskite solar cells have achieved rapid growth in power conversion efficiency (PCE) and attained 25.2 % recently. Mostly, high-efficiency perovskite solar cells have been prepared with uniform perovskite film by the one-step spin coating method using anti-solvent. Other groups have reported the change of perovskite’s morphology with applying various anti-solvents. Because chemical properties of anti-solvent (e.g. boiling point, polarity, and dielectric constant) affect the film morphology of perovskite. Especially, the dripping process of anti-solvent needs to be optimized to attain high-coverage and uniform perovskite films. However, previous studies have mainly shown the deposition of perovskite at N2-filled glove box and controlled humidity (＜ RH 20 %). It is necessary to understand how anti-solvent affects the formation of perovskite depending on humidity. In this study, we propose Diethyl ether as an anti-solvent that can achieve high-coverage and uniform perovskite films in ambient humidity conditions (＜ RH 50 %) by analyzing the UV-vis absorption, scanning electron microscope, and X-ray diffraction spectra of perovskite films. |
| 저자 |
정석현1, 김동환1, 이원규1, 이솔희1, 이상원1, 황재근1, 강윤묵2, 이해석3
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| 소속 |
1고려대, 2KU-KIST 그린스쿨대, 3KU-KSIT 그린스쿨대 |
| 키워드 |
Perovsktie solar cell; Relative humidity; Anti-solvent; Ambient air condition; Uniform perovskite
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| E-Mail |
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