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Can I read Stabilization of Component-Pure α-FAPbI~3~ via Volatile Additives for Stable Photovoltaics on EtoBox?
Stabilization of Component-Pure α-FAPbI~3~ via Volatile Additives for Stable Photovoltaics by Dianxi Wang; Muyang Chen; Xuecong Zhang; Lingfeng Chao; Tingting Niu; Yifan Lv; Guichuan Xing; Yingdong Xia; Mingjie Li; Hui Zhang; Yonghua Chen is a Engineering article available to read on EtoBox.
What is Stabilization of Component-Pure α-FAPbI~3~ via Volatile Additives for Stable Photovoltaics about?
State-of-the-art high-performance perovskite solar cells are mainly based on formamidinium (FA)-dominated perovskites because of their narrow band gap and remarkable thermal resistance. However, photoactive α-FAPbI 3 is prone to transit to the photoinactive phase, and pioneering phase stabilization strategies can induce undesirable band gap broadening or phase segregation, seriously restricting the efficiency and longterm stability of the resultant photovoltaics. Herein, a small molecule of ammonium acetate (NH 4 Ac) was introduced as an additive in a modified ripening method to fabricate component-pure α-FAPbI 3 . Owing to the strong interaction between NH 4 Ac and PbI 2 , FAI via Pb−O coordination, and N−H•••N hydrogen bonding, vertically oriented perovskites with relaxed crystal strain were first generated, which were fully converted to α-FAPbI 3 in a further ripening process. The NH 4 Ac was fully volatized after the perovskite formation, resulting in component-pure α-FAPbI 3 with a band gap of 1.48 eV and remarkable stability under light illumination. Ultimately, a champion device efficiency of above 21% was obtained based on the component-pure α-FAPbI 3 and over 95% of the in
Who reads Stabilization of Component-Pure α-FAPbI~3~ via Volatile Additives for Stable Photovoltaics?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Dianxi Wang; Muyang Chen; Xuecong Zhang; Lingfeng Chao; Tingting Niu; Yifan Lv; Guichuan Xing; Yingdong Xia; Mingjie Li; Hui Zhang; Yonghua Chen
- Publisher
- American Chemical Society (ACS)
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)