Front-Contact Passivation of PIN MAPbI(3) Solar Cells with Superior Device Performances

Wang, Jiantao1,2; Xu, Jing1; Li, Zhixin1; Lin, Xiaosong1; Yu, Chengzhuo1; Wu, Hongkai2; Wang, Hsing-lin1

2020-07-27

10.1021/acsaem.0c00561

ACS Applied Energy Materials   影响因子和分区

2574-0962

Perovskite materials have attracted widespread attention in the photovoltaic community due to their excellent intrinsic electronic properties and very high device efficiency. Interfacial passivation for perovskite solar cells has been demonstrated as a valid approach for fabricating high-efficiency solar cells. However, in planar inverted (PIN) device configuration, the mechanistic understanding of how front-contact passivation (FCP) between perovskite and dopant-free organic hole-transporting materials enhances the device performance remains elusive. Considering the direct impact of FCP on the perovskite layer, we select poly(methyl methacrylate) (PMMA) as the FCP layer being inserted between dopant-free poly(triarylamine) (PTAA) and MAPbI(3). Our results show that PMMA can promote the hydrophilicity of PTAA, improve the interfacial contact with MAPbI(3), facilitate the charge carrier transfer, and reduce the interface-mediated recombination. This PMMA FCP dramatically boosted the device open-circuit voltage (V-oc) from 1.04 V to 1.10 V. Furthermore, the performance of the champion device with negligible hysteresis is enhanced from 17.39 % to 19.51%, which is among the highest efficiencies via the unilateral passivation layer.

PIN MAPbI(3) solar cells passivation enhanced performance

SCI ; EI

英语

第一 ; 通讯

National Key Research and Development Program of China[2018YFB0704100] ; Leading Talents of Guangdong Province Program[2016LJ06N507] ; Research and Development Program of Guangdong Province for Key Areas[2019B010941001] ; Shenzhen Basic Research Fund[CYJ20170817110652558]

Chemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000557375200039

AMER CHEMICAL SOC

20203709163441

Hydrophilicity ; Open circuit voltage ; Efficiency ; Electronic properties ; Esters ; Perovskite ; Perovskite solar cells

Minerals:482.2 ; Protection Methods:539.2.1 ; Solar Cells:702.3 ; Organic Compounds:804.1 ; Production Engineering:913.1

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong 999077, Peoples R China

Wang, Jiantao,Xu, Jing,Li, Zhixin,et al. Front-Contact Passivation of PIN MAPbI(3) Solar Cells with Superior Device Performances[J]. ACS Applied Energy Materials,2020,3(7):6344-6351.

Wang, Jiantao.,Xu, Jing.,Li, Zhixin.,Lin, Xiaosong.,Yu, Chengzhuo.,...&Wang, Hsing-lin.(2020).Front-Contact Passivation of PIN MAPbI(3) Solar Cells with Superior Device Performances.ACS Applied Energy Materials,3(7),6344-6351.

Wang, Jiantao,et al."Front-Contact Passivation of PIN MAPbI(3) Solar Cells with Superior Device Performances".ACS Applied Energy Materials 3.7(2020):6344-6351.