https://scholars.lib.ntu.edu.tw/handle/123456789/498044
標題: | In-situ atmospheric-pressure dielectric barrier discharge plasma treated CH <inf>3</inf> NH <inf>3</inf> PbI <inf>3</inf> for perovskite solar cells in regular architecture | 作者: | Chen, Z.-C. Cheng, Y. Lin, C.-C. Li, C.-S. Hsu, C.-C. Chen, J.-Z. Wu, C.-I. I-CHUN CHENG |
關鍵字: | Atmospheric-pressure plasma; Dielectric barrier discharge (DBD); Perovskite solar cells | 公開日期: | 2019 | 卷: | 473 | 起(迄)頁: | 468-475 | 來源出版物: | Applied Surface Science | 摘要: | The effect of atmospheric-pressure dielectric barrier discharge (DBD) treatment on the properties of methylammonium lead iodide (CH 3 NH 3 PbI 3 , MAPbI 3 ) perovskite thin films is investigated. The in-situ DBD-treated MAPbI 3 perovskite thin films are then used as the absorber layers for planar n-i-p perovskite solar cells (PSCs). N-O emission system is observed in the plasma during the treatment, indicating the reactions of reactive nitrogen plasma species with the organics in the precursor films. Long DBD treatment duration (60 s) leads to the phase precipitation of PbI 2 and degrades the cell efficiency, whereas short DBD treatment duration (20 s) significantly improves the PSC efficiency by nearly 40%. Only slight performance enhancement is observed in the PSCs prepared by conventional thermal treatment at the same substrate temperatures as that for DBD treatment, implying that DBD provides the synergetic effect of the reactivity and plasma heating. Electrochemical impedance spectroscopy (EIS) indicates that the charge recombination impedance increases and then decreases with DBD treatment duration. The shunt resistance also shows a similar trend, and it is consistent with the PSC performance. The PSC with the 20 s DBD-treated absorber layer shows energy conversion efficiency of 14.29%, open circuit voltage of 1.022 V, short circuit current density of 19.45 mA/cm 2 , and fill factor of 0.72, whereas the corresponding values for the untreated counterpart are 10.32%, 0.976 V, 18.52 mA/cm 2 , and 0.57. The result shows that short-duration low-temperature DBD treatment effectively enhances the performance of solution-processed PSCs. © 2018 Elsevier B.V. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058946638&doi=10.1016%2fj.apsusc.2018.12.118&partnerID=40&md5=8f2977c8cfda1265191080abe2806cf3 | DOI: | 10.1016/j.apsusc.2018.12.118 |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。