Park, Ik Jae Park, Min Ah Kim, Dong Hoe Park, Gyeong Do Kim, Byeong Jo Son, Hae Jung Ko, Min Jae Lee, Doh-Kwon Park, Taiho Shin, Hyunjung Park, Nam-Gyu Jung, Hyun Suk Kim, Jin Young 2024-01-20T05:31:12Z 2024-01-20T05:31:12Z 2021-09-03 2015-12-10 1932-7447 https://pubs.kist.re.kr/handle/201004/124631 We report a highly efficient p-i-n type planar perovskite solar cell with a hybrid PEDOT/NiOx hole-extraction layer. It has been found that the perovskite solar cell with a NiOx thin film as a hole-extraction layer generally exhibits lower fill factor compared to the conventionally used PEDOT:PSS thin film, whereas it shows higher photocurrent and photovoltage. The fill factor of the NiOx-based perovskite solar cell can be significantly improved by treating the NiOx surface with a dilute PEDOT solution. The photoluminescence quenching study and impedance spectroscopic (IS) analysis have revealed that the hole injection at the perovskite/NiOx interface is significantly facilitated with the PEDOT treatment, which should lead to the increased fill factor. As a result, the p-i-n type planar perovskite solar cell with the new hybrid hole-extraction layer exhibits a high conversion efficiency of 15.1% without the hysteresis effect. English American Chemical Society HIGH-PERFORMANCE NICKEL-OXIDE THIN-FILM CH3NH3PBI3 EFFICIENCY TRIHALIDE HYSTERESIS New Hybrid Hole Extraction Layer of Perovskite Solar Cells with a Planar p-i-n Geometry Article 10.1021/acs.jpcc.5b09322 1 The Journal of Physical Chemistry C, v.119, no.49, pp.27285 - 27290 The Journal of Physical Chemistry C 119 49 27285 27290 scie scopus 000366339000012 2-s2.0-84949501416 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article HIGH-PERFORMANCE NICKEL-OXIDE THIN-FILM CH3NH3PBI3 EFFICIENCY TRIHALIDE HYSTERESIS perovskite solar cell p-i-n