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In the past few years, significant work has been dedicated to developing novel perovskite materials and improving device structures, leading to an increase in the power conversion efficiency (PCE) of perovskite solar cells (PSCs) from 3.8% to over 27%.1,2 In the highly efficient PSCs, triple cation
perovskites (CsFAMA) are primarily utilized due to their greater thermal and phase stability in comparison to single cation perovskites.3,4 The PSC features two types of configurations: the conventional (n-i-p) and inverted (p-i-n) structures. Currently, the PCE of PSCs in both n-i-p and p-i-n configurations is almost the same.5 Despite this, the rise in the popularity of the inverted structure PSCs has been growing due to their distinct benefits, such as processing at low temperatures, reduced hysteresis, enhanced stability, and compatibility with perovskite tandem solar cells.2,6−10 The selection or design of the hole transport layer (HTL) is particularly important to the performance and stability of the inverted PSCs, since it greatly affects the quality of the perovskite film.7,11,12 Additionally, because it is located at the light incident side of this device architecture, it should be quite robust. In the inverted PSCs, various materials have been studied as an HTL, including nickel oxide (NiOx),13 selfassembled monolayers (SAMs),14 poly(3,4 ethylenedioxythiophene) polystyrenesulfonate (PEDOT:PSS),15 and poly [bis (4-phenyl) (2,4,6-trimethylphenyl) amine] (PTAA).16 NiOx is being investigated as an HTL in inverted PSCs due to its wide band gap (3.6−4.0 eV), excellent hole mobility, low cost, and easy solution processability.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: Perovskite Solar Cells, Self-Assembled Monolayers

刊行年月日: 2026-05-27

出版者: American Chemical Society (ACS)

掲載誌:

• ACS Applied Materials & Interfaces (ISSN: 19448252) vol. 18 issue. 20 p. 28728-28736

研究助成金:

• Ministry of Education, Culture, Sports, Science and Technology JPMXP1223BA0028
• Japan Society for the Promotion of Science 22H02190
• Japan Science and Technology Agency JPMJAN23B2

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.8643

公開URL: https://doi.org/10.1021/acsami.6c04007

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更新時刻: 2026-10-07 08:52:39 +0900

MDRでの公開時刻: 2026-10-07 10:24:18 +0900