Precursor Compositions, Interfacail Materials and Device Fabrication for Perovskite Solar Cells

钙钛矿太阳能电池的前驱体组分、界面材料和器件制备

王建涛

11751007

博士

化学

哲学博士

王湘麟

2020-07-07

2021-12-31

香港科技大学

香港

Perovskite has emerged as a class of star materials for photovoltaic application in terms of the low-cost solution-processed technology and the superior optoelectronic properties. Perovskite solar cells (PSCs) with high performance have been mainly fabricated through compositional and interfacial engineering. In this thesis, I mainly focus on the fabrication of planar PSCs using variable precursor compositions, such as CsPbIBr2, MAPbI3, (FAPbI3)0.85(MAPbBr3)0.15, (CsPbI3)0.05[(FAPbI3)0.85(MAPbBr3)0.15]0.95, and (CsPbI3)0.05[(FAPbI3)0.90(MAPbBr3)0.10]0.95. In addition, interfacial materials (including perovskite defect-passivation materials, hole transporting materials, and electrode interfacial materials) have been employed to (i) reduce the trap-state density and (ii) enhance the charge-carrier transport, and hence to (iii) suppress the carrier recombination. The studies aim to (i) achieve crystal formation of different precursor compositions, (ii) develop interfacial materials to reduce non-radiative recombination, and (iii) fabricate high-performance and stable PSCs. This thesis tackles the critical challenges in PSCs research and lays the foundation for a fundamental understanding but also eventually industrialization.

钙钛矿材料廉价的溶液加工技术和优异的半导体性能使其成为光伏应用的明星材料。高性能的钙钛矿太阳能电池主要通过调节组分和界面工程制备。本文通过研究CsPbIBr2、MAPbI3、(FAPbI3)0.85(MAPbBr3)0.15、(CsPbI3)0.05[(FAPbI3)0.85(MAPbBr3)0.15]0.95和 (CsPbI3)0.05[(FAPbI3)0.90(MAPbBr3)0.10]0.95等前驱体组分，主要关注平面钙钛矿太阳能电池的制备。此外，通过引入界面钝化材料、空穴传输材料和电极界面材料等来降低缺陷态密度、加强载流子传输、从而抑制载流子复合。本研究致力于获得不同组分钙钛矿的结晶、发展新型界面材料降低非辐射复合、并制备高效率和稳定的钙钛矿太阳能电池。本论文应对了钙钛矿太阳能电池领域的重要挑战并为其产业化打下基础。

Perovskite solar cells precursor compositions interfacial materials efficiency stability

钙钛矿太阳能电池 前驱体组分 界面材料 效率 稳定性

英语

联合培养

南方科技大学

Wang JT. Precursor Compositions, Interfacail Materials and Device Fabrication for Perovskite Solar Cells[D]. 香港. 香港科技大学,2020.