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All-Perovskite Tandem Solar Cells Approach 26.5% Efficiency by Employing Wide Bandgap Lead Perovskite Solar Cells with New Monomolecular Hole Transport Layer AITranslate

Huan Bi; Jiaqi Liu; Zheng Zhang; Liang Wang; Raminta Beresneviciute; Daiva Tavgeniene; Gaurav Kapil; Chao Ding; Ajay Kumar Baranwal; Shahrir Razey Sahamir; Yoshitaka Sanehira; Hiroshi Segawa; Saulius Grigalevicius; Qing Shen; Shuzi Hayase;
The University of Electro-Communications; The University of Electro-Communications; The University of Electro-Communications; The University of Electro-Communications; Kaunas University of Technology; Kaunas University of Technology; The University of Electro-Communications; Sichuan University; The University of Electro-Communications; The University of Electro-Communications; The University of Electro-Communications; The University of Tokyo; Kaunas University of Technology; The University of Electro-Communications; The University of Electro-Communications
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Abstract AITranslate

Self-assembled molecules (SAMs) have been widely employed as hole transport layers (HTLs) that can improve the power conversion efficiency (PCE) of perovskite solar cells (PSCs). However, few SAMs are effective for wide band gap (WBG; Eg = 1.77 eV) PSCs. We found that [3-[4-(diphenylamino)phenyl]-9H-carbazol-9-yl]propylphosphonic acid (4dp3PACz) working as a monomolecular HTL is effective for WPG (FA0.8Cs0.2PbI1.8Br1.2) PSCs. The 4dp3PACz improved the quality of the perovskite film and reduced the defect density of the film, which reduced the nonradiative recombination and enhanced the carrier transport. 17.17% efficiency is reported. In addition, all-perovskite tandem solar cells consisting of the WBG PSC as the top cell gave 26.47% efficiency.

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DOI：https://doi.org/10.1021/acsenergylett.3c01275

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Citation Information:

Self-assembled molecules (SAMs) have been widely employed as hole transport layers (HTLs) that can improve the power conversion efficiency (PCE) of perovskite solar cells (PSCs). However, few SAMs are effective for wide band gap (WBG; Eg = 1.77 eV) PSCs. We found that [3-[4-(diphenylamino)phenyl]-9H-carbazol-9-yl]propylphosphonic acid (4dp3PACz) working as a monomolecular HTL is effective for WPG (FA0.8Cs0.2PbI1.8Br1.2) PSCs. The 4dp3PACz improved the quality of the perovskite film and reduced the defect density of the film, which reduced the nonradiative recombination and enhanced the carrier transport. 17.17% efficiency is reported. In addition, all-perovskite tandem solar cells consisting of the WBG PSC as the top cell gave 26.47% efficiency.

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GB/T 7714-2015 [1] Huan Bi, Jiaqi Liu, Zheng Zhang, et al. ACS Energy Letters, 2023(8). DOI:10.1021/acsenergylett.3c01275.
MLA [1] Huan Bi, et al., ACS Energy Letters, no. 8, 2023, https://doi.org/10.1021/acsenergylett.3c01275.
APA [1] Huan Bi, Jiaqi Liu, Zheng Zhang, Liang Wang, Raminta Beresneviciute, Daiva Tavgeniene, Gaurav Kapil, Chao Ding, Ajay Kumar Baranwal, Shahrir Razey Sahamir, Yoshitaka Sanehira, Hiroshi Segawa, Saulius Grigalevicius, Qing Shen, & Shuzi Hayase. (2023). ACS Energy Letters(8). https://doi.org/10.1021/acsenergylett.3c01275
IEEE [1] Huan Bi, Jiaqi Liu, Zheng Zhang, Liang Wang, Raminta Beresneviciute, Daiva Tavgeniene, Gaurav Kapil, Chao Ding, Ajay Kumar Baranwal, Shahrir Razey Sahamir, Yoshitaka Sanehira, Hiroshi Segawa, Saulius Grigalevicius, Qing Shen, and Shuzi Hayase, ACS Energy Letters, no. 8, 2023, doi: 10.1021/acsenergylett.3c01275.