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Tripodal Triazatruxene Derivative as a Face-On Oriented Hole-Collecting Monolayer for Efficient and Stable Inverted Perovskite Solar Cells
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2023-03-22 , DOI: 10.1021/jacs.3c00805 Minh Anh Truong 1 , Tsukasa Funasaki 1 , Lucas Ueberricke 1 , Wataru Nojo 1, 2 , Richard Murdey 1 , Takumi Yamada 1 , Shuaifeng Hu 1 , Aruto Akatsuka 3 , Naomu Sekiguchi 4 , Shota Hira 1 , Lingling Xie 1 , Tomoya Nakamura 1 , Nobutaka Shioya 1 , Daisuke Kan 1 , Yuta Tsuji 5 , Satoshi Iikubo 4 , Hiroyuki Yoshida 3, 6, 7 , Yuichi Shimakawa 1 , Takeshi Hasegawa 1 , Yoshihiko Kanemitsu 1 , Takanori Suzuki 2 , Atsushi Wakamiya 1
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2023-03-22 , DOI: 10.1021/jacs.3c00805 Minh Anh Truong 1 , Tsukasa Funasaki 1 , Lucas Ueberricke 1 , Wataru Nojo 1, 2 , Richard Murdey 1 , Takumi Yamada 1 , Shuaifeng Hu 1 , Aruto Akatsuka 3 , Naomu Sekiguchi 4 , Shota Hira 1 , Lingling Xie 1 , Tomoya Nakamura 1 , Nobutaka Shioya 1 , Daisuke Kan 1 , Yuta Tsuji 5 , Satoshi Iikubo 4 , Hiroyuki Yoshida 3, 6, 7 , Yuichi Shimakawa 1 , Takeshi Hasegawa 1 , Yoshihiko Kanemitsu 1 , Takanori Suzuki 2 , Atsushi Wakamiya 1
Affiliation
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Hole-collecting monolayers have drawn attention in perovskite solar cell research due to their ease of processing, high performance, and good durability. Since molecules in the hole-collecting monolayer are typically composed of functionalized π-conjugated structures, hole extraction is expected to be more efficient when the π-cores are oriented face-on with respect to the adjacent surfaces. However, strategies for reliably controlling the molecular orientation in monolayers remain elusive. In this work, multiple phosphonic acid anchoring groups were used to control the molecular orientation of a series of triazatruxene derivatives chemisorbed on a transparent conducting oxide electrode surface. Using infrared reflection absorption spectroscopy and metastable atom electron spectroscopy, we found that multipodal derivatives align face-on to the electrode surface, while the monopodal counterpart adopts a more tilted configuration. The face-on orientation was found to facilitate hole extraction, leading to inverted perovskite solar cells with enhanced stability and high-power conversion efficiencies up to 23.0%.
中文翻译：
Tripodal Triazatruxene 衍生物作为面向高效和稳定的倒置钙钛矿太阳能电池的面向孔收集单层
由于易于加工、高性能和良好的耐用性，空穴收集单层在钙钛矿太阳能电池研究中引起了人们的关注。由于空穴收集单层中的分子通常由功能化的 π 共轭结构组成，因此当 π 核相对于相邻表面面朝上时，预计空穴提取会更有效。然而，可靠地控制单层分子取向的策略仍然难以捉摸。在这项工作中，使用多个膦酸锚定基团来控制化学吸附在透明导电氧化物电极表面上的一系列三氮卓烯衍生物的分子取向。利用红外反射吸收光谱和亚稳态原子电子能谱，我们发现多足衍生物与电极表面面对面对齐，而单足衍生物则采用更倾斜的配置。发现正面取向有利于空穴提取，从而导致倒置钙钛矿太阳能电池具有更高的稳定性和高达 23.0% 的高功率转换效率。
更新日期：2023-03-22
中文翻译：
Tripodal Triazatruxene 衍生物作为面向高效和稳定的倒置钙钛矿太阳能电池的面向孔收集单层
由于易于加工、高性能和良好的耐用性，空穴收集单层在钙钛矿太阳能电池研究中引起了人们的关注。由于空穴收集单层中的分子通常由功能化的 π 共轭结构组成，因此当 π 核相对于相邻表面面朝上时，预计空穴提取会更有效。然而，可靠地控制单层分子取向的策略仍然难以捉摸。在这项工作中，使用多个膦酸锚定基团来控制化学吸附在透明导电氧化物电极表面上的一系列三氮卓烯衍生物的分子取向。利用红外反射吸收光谱和亚稳态原子电子能谱，我们发现多足衍生物与电极表面面对面对齐，而单足衍生物则采用更倾斜的配置。发现正面取向有利于空穴提取，从而导致倒置钙钛矿太阳能电池具有更高的稳定性和高达 23.0% 的高功率转换效率。
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