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Efficiency Enhancement of Wide Bandgap Lead Perovskite Solar Cells with PTAA Surface-Passivated with Monomolecular Layer from the Viewpoint of PTAA Band Bending
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-08-22 , DOI: 10.1021/acsami.3c08655 Huan Bi 1, 2 , Jiaqi Liu 1 , Raminta Beresneviciute 3 , Daiva Tavgeniene 3 , Zheng Zhang 1, 2 , Liang Wang 1 , Gaurav Kapil 1 , Chao Ding 2 , Shahrir Razey Sahamir 1 , Yoshitaka Sanehira 1 , Ajay Kumar Baranwal 1 , Takeshi Kitamura 1 , Dandan Wang 2 , Yuyao Wei 2 , Yongge Yang 2 , Dong-Won Kang 4 , Saulius Grigalevicius 3 , Qing Shen 1, 2 , Shuzi Hayase 1, 2
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-08-22 , DOI: 10.1021/acsami.3c08655 Huan Bi 1, 2 , Jiaqi Liu 1 , Raminta Beresneviciute 3 , Daiva Tavgeniene 3 , Zheng Zhang 1, 2 , Liang Wang 1 , Gaurav Kapil 1 , Chao Ding 2 , Shahrir Razey Sahamir 1 , Yoshitaka Sanehira 1 , Ajay Kumar Baranwal 1 , Takeshi Kitamura 1 , Dandan Wang 2 , Yuyao Wei 2 , Yongge Yang 2 , Dong-Won Kang 4 , Saulius Grigalevicius 3 , Qing Shen 1, 2 , Shuzi Hayase 1, 2
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This report is on the efficiency enhancement of wide bandgap lead halide perovskite solar cells (WBG Pb-PVK PSCs) consisting of FA0.8Cs0.2PbI1.8Br1.2 as the light-harvesting layer. WGB Pb-PVK PSCs have attracted attention as the top layer of all perovskite-tandem solar cells. Poly[bis(4-phenyl) (2,4,6-trimethylphenyl) amine] (PTAA), a conductive polymer, is always used as the hole transporting layer (HTL) for Pb-PVK PSCs. Nevertheless, the hydrophobic surface of the PTAA sometimes destroys the growth of the FA0.8Cs0.2PbI1.8Br1.2 film. On the other hand, the Fermi level of PTAA is not well matched with that of perovskite film. Thus, the PCE of the WBG Pb-based PSCs with PTAA as the HTL was not very high. In this report, the efficiency of the FA0.8Cs0.2PbI1.8Br1.2 is improved by passivating the surface of the PTAA with a monomolecular layer, where the surface becomes hydrophilic, and the band bending of the PTAA layer is improved to cause swift hole collection. Finally, WBG Pb-PVK PSCs (1.77 eV) with 16.52% efficiency are reported.
中文翻译：
从PTAA能带弯曲的角度看单分子层表面钝化PTAA宽禁带铅钙钛矿太阳能电池的效率提升
该报告是关于由 FA 0.8 Cs 0.2 PbI 1.8 Br 1.2作为光收集层组成的宽带隙卤化铅钙钛矿太阳能电池（WBG Pb-PVK PSC）的效率增强。WGB Pb-PVK PSC 作为所有钙钛矿串联太阳能电池的顶层而引起了人们的关注。聚[双(4-苯基)(2,4,6-三甲基苯基)胺](PTAA)是一种导电聚合物，通常用作Pb-PVK PSC的空穴传输层(HTL)。然而，PTAA的疏水表面有时会破坏FA 0.8 Cs 0.2 PbI 1.8 Br 1.2薄膜的生长。另一方面，PTAA的费米能级与钙钛矿薄膜的费米能级不匹配。因此，以PTAA作为HTL的WBG Pb基PSC的PCE不是很高。在该报告中，通过用单分子层钝化PTAA表面来提高FA 0.8 Cs 0.2 PbI 1.8 Br 1.2的效率，其中表面变得亲水，并且改善PTAA层的能带弯曲以引起快孔收藏。最后，报道了效率为 16.52% 的 WBG Pb-PVK PSC (1.77 eV)。
更新日期：2023-08-22
中文翻译：
从PTAA能带弯曲的角度看单分子层表面钝化PTAA宽禁带铅钙钛矿太阳能电池的效率提升
该报告是关于由 FA 0.8 Cs 0.2 PbI 1.8 Br 1.2作为光收集层组成的宽带隙卤化铅钙钛矿太阳能电池（WBG Pb-PVK PSC）的效率增强。WGB Pb-PVK PSC 作为所有钙钛矿串联太阳能电池的顶层而引起了人们的关注。聚[双(4-苯基)(2,4,6-三甲基苯基)胺](PTAA)是一种导电聚合物，通常用作Pb-PVK PSC的空穴传输层(HTL)。然而，PTAA的疏水表面有时会破坏FA 0.8 Cs 0.2 PbI 1.8 Br 1.2薄膜的生长。另一方面，PTAA的费米能级与钙钛矿薄膜的费米能级不匹配。因此，以PTAA作为HTL的WBG Pb基PSC的PCE不是很高。在该报告中，通过用单分子层钝化PTAA表面来提高FA 0.8 Cs 0.2 PbI 1.8 Br 1.2的效率，其中表面变得亲水，并且改善PTAA层的能带弯曲以引起快孔收藏。最后，报道了效率为 16.52% 的 WBG Pb-PVK PSC (1.77 eV)。
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