The author of 《Importance of terminated groups in 9,9-bis(4-methoxyphenyl)-substituted fluorene-based hole transport materials for highly efficient organic-inorganic hybrid and all-inorganic perovskite solar cells》 were Zhang, Dongyang; Tai, Wu‡; Xu, Peng; Ou, Yangmei; Sun, Anxin; Ma, Huili; Cui, Bo; Sun, Hanwen; Ding, Liming; Hua, Yong. And the article was published in Journal of Materials Chemistry A: Materials for Energy and Sustainability in 2019. Recommanded Product: Bis(4-methoxyphenyl)amine The author mentioned the following in the article:
Hole-transport materials (HTMs) play a crucial role in determining the photovoltaic performance and long-term stability of perovskite solar cells (PSCs), because they not only efficiently facilitate hole-extraction and transfer, but also act as a barrier to protect the perovskite from moisture and oxygen. So far, the power conversion efficiencies (PCEs) over 20% in PSCs have been mostly achieved by employing a Spiro-OMeTAD-based HTM. However, it suffers from some drawbacks such as relatively low hole-mobility, complicated synthesis and difficult purification, which hamper its potential com. applications. Here, for the first time, two new easily accessible 9,9-bis(4-methoxyphenyl)-substituted fluorene-based HTMs comprising H (YT1) and methoxyphenyl-fluorene (YT3) as the terminated groups have been synthesized for use in organic-inorganic hybrid and all-inorganic PSCs. The (FAPbI3)0.85(MAPbBr3)0.15 and CsPbI2Br PSCs based on YT3 yield very impressive PCEs of 20.23% and 13.36%, resp., both of which are higher than that of Spiro-OMeTAD (19.18% and 12.30%). More encouragingly, the YT3-based PSC displays good long-term stability for 600 h. These results confirm that different terminated groups in HTMs show a significant effect on the energy levels, hole extraction and transfer, thin-film surface morphol. and photovoltaic performance. Our findings could provide a useful insight for future rational design of HTMs for highly efficient and stable PSCs. In the part of experimental materials, we found many familiar compounds, such as Bis(4-methoxyphenyl)amine(cas: 101-70-2Recommanded Product: Bis(4-methoxyphenyl)amine)
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.Recommanded Product: Bis(4-methoxyphenyl)amine
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