Modulating hot carrier cooling and extraction with A-site organic cations in perovskites

Yu, Xuemeng1; Shi, Pengju2,3,4,5,6; Gong, Shaokuan1; Huang, Yuling1; Xue, Jingjing4,5,6; Wang, Rui2,3; Chen, Xihan1

2024-03-28

10.1063/5.0205419

JOURNAL OF CHEMICAL PHYSICS   影响因子和分区

0021-9606

1089-7690

Hot carrier solar cells could offer a solution to achieve high efficiency solar cells. Due to the hot-phonon bottleneck in perovskites, the hot carrier lifetime could reach hundreds of ps. Such that exploring perovskites could be a good way to promote hot carrier technology. With the incorporation of large organic cations, the hot carrier lifetime can be improved. By using ultrafast transient spectroscopy, the hot carrier relaxation and extraction kinetics are measured. From the transient kinetics, 2-phenyl-acetamidine cation based perovskites exhibit the highest initial carrier temperature, longest carrier relaxation, and slowest hot carrier relaxation. Such superior behavior could be attributed to reduced electron-phonon coupling induced by lattice strain, which is a result of the large organic cation and also a possible surface electronic state change. Our discovery exhibits the potential to use large organic cations for the use of hot carrier perovskite solar cells.

SCI ; EI

英语

第一 ; 通讯

Natural Science Foundation of Guangdong Province[2023A1515011145] ; Guangdong Provincial University Science and Technology Program[2023KTSCX119] ; Shenzhen Science and Technology Innovation Commission["JCYJ20220530114809022","ZDSYS20220527171403009"] ; Natural Science Foundation of Zhejiang Province of China["LD22E020002","LD24E020001","LR24F040001"] ; Natural Science Foundation[62274146] ; Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering[2021SZ-FR006]

Chemistry ; Physics

Chemistry, Physical ; Physics, Atomic, Molecular & Chemical

WOS:001191909800004

AIP Publishing

CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, SUSTech Energy Inst Carbon Neutral, Dept Mech & Energy Engn, Shenzhen Key Lab Intelligent Robot & Flexible Mfg, Shenzhen 518055, Peoples R China
2.Westlake Univ, Sch Engn, Hangzhou 310024, Peoples R China
3.Westlake Inst Adv Study, Inst Adv Technol, Hangzhou 310024, Peoples R China
4.Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
5.Zhejiang Univ, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China
6.Zhejiang Univ, Shanxi Zheda Inst Adv Mat & Chem Engn, Hangzhou 310027, Peoples R China

Yu, Xuemeng,Shi, Pengju,Gong, Shaokuan,et al. Modulating hot carrier cooling and extraction with A-site organic cations in perovskites[J]. JOURNAL OF CHEMICAL PHYSICS,2024,160(12).

Yu, Xuemeng.,Shi, Pengju.,Gong, Shaokuan.,Huang, Yuling.,Xue, Jingjing.,...&Chen, Xihan.(2024).Modulating hot carrier cooling and extraction with A-site organic cations in perovskites.JOURNAL OF CHEMICAL PHYSICS,160(12).

Yu, Xuemeng,et al."Modulating hot carrier cooling and extraction with A-site organic cations in perovskites".JOURNAL OF CHEMICAL PHYSICS 160.12(2024).