Zhu, Hongwei; Shen, Zhongjin; Pan, Linfeng; Han, Jianlei; Eickemeyer, Felix T.; Ren, Yameng; Li, Xianggao; Wang, Shirong; Liu, Hongli; Dong, Xiaofei; Zakeeruddin, Shaik M.; Hagfeldt, Anders; Liu, Yuhang; Gratzel, Michael published their research in ACS Energy Letters in 2021. The article was titled 《Low-Cost Dopant Additive-Free Hole-Transporting Material for a Robust Perovskite Solar Cell with Efficiency Exceeding 21%》.Related Products of 101-70-2 The article contains the following contents:
Developing hole-transporting materials (HTMs) with appropriate mol. configuration and charge mobility is important to improve perovskite solar cell (PSC) photovoltaic performance and their feasibility for commercialization. In this work, a novel pyramidal-shaped low-cost HTM coded MeOTTVT is prepared through extension of π-conjugation based on a triphenylamine core. Carbon-carbon double bonds are introduced between the core and p-methoxyl triphenylamine to improve the planarity of the HTM, favoring intermol. stacking of MeOTTVT and thus improving the hole mobility of the corresponding hole-transporting layer (HTL). The p-methoxyl triphenylamine-endowed HTM benefits from a HOMO level well-aligned with the perovskite active layer, facilitating effective hole extraction The champion PSC using an MeOTTVT-based dopant additive-free HTL yielded a power conversion efficiency (PCE) up to 21.30%, which is considered one of the best-performing PSCs employing a dopant additive-free small mol. HTM. In addition, the MeOTTVT-based dopant additive-free HTL exhibits outstanding thermal stability and high glass-transition temperature (Tg = 137.1 °C), combined with a more hydrophobic surface; PSCs based on an MeOTTVT dopant additive-free HTL exhibit outstanding stability against moisture, 1 sun illumination, and thermal stress. In the experiment, the researchers used Bis(4-methoxyphenyl)amine(cas: 101-70-2Related Products of 101-70-2)
Bis(4-methoxyphenyl)amine(cas: 101-70-2) is a diphenylamine derivative used as a chemical additive for cured rubber.Bis(4-methoxyphenyl)amine is highly toxic and may potentially induce chromosome abberation.Related Products of 101-70-2
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem