Effect of Passivating Molecules and Antisolvents on Lifetime of Green Dion-Jacobson Perovskite Light-Emitting Diodes

Qin, Xinshun1; He, Yanling1; Tao, Chun Ki2; Sergeev, Aleksandr2; Wong, Kam Sing2; Ren, Zhilin1; Liang, Qiong3; Leung, Tik Lun4; Li, Gang3; Popovic, Jasminka5; Ng, Alan Man Ching6; Djurisic, Aleksandra B.1

2023-06-16

10.1021/acsami.3c02170

ACS APPLIED MATERIALS & INTERFACES   影响因子和分区

1944-8244

1944-8252

We investigated the influence of two passivating moleculescontaininga P=O group on the performance of quasi-2D Dion-Jacobsonhalide perovskite light-emitting diodes, namely, triphenylphosphineoxide (TPPO) and diphenyl-4-triphenylsilylphenyl phosphine oxide (TSPO1).We found that both passivating molecules lead to increased efficiencycompared to control devices, while they had opposite effects on devicelifetime, with a decrease observed for TPPO and an increase observedfor TSPO1. The two passivating molecules resulted in differences inenergy-level alignment, electron injection, film morphology and crystallinity,and ion migration during operation. While TPPO resulted in mproved photoluminescence decay times, overall higher maximum external quantumefficiency (EQE) and device lifetime were obtained for TSPO1 comparedto TPPO (14.4% vs 12.4% EQE, 341 min vs 42 min T-50).

lead halide perovskite LED passivation stability lifetime

SCI ; EI

英语

其他

NSFC[6207032617] ; RGC GRF project["17301520","703520G"] ; Croatian Science Foundation[PZS-2019-02-2068]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001011440200001

AMER CHEMICAL SOC

20232714342887

Crystallinity ; Lead compounds ; Light emitting diodes ; Passivation ; Perovskite ; Phosphorus compounds

Minerals:482.2 ; Protection Methods:539.2.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Atomic and Molecular Physics:931.3 ; Crystalline Solids:933.1

Web of Science

1.Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China
2.Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong 999077, Peoples R China
3.Hong Kong Polytech Univ, Dept Elect & Informat Engn, Kowloon, Hong Kong, Peoples R China
4.Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia
5.Rudjer Boskovic Inst, Zagreb 10000, Croatia
6.Southern Univ Sci & Technol, Core Res Facil, Shenzhen 518055, Guangdong, Peoples R China

Qin, Xinshun,He, Yanling,Tao, Chun Ki,et al. Effect of Passivating Molecules and Antisolvents on Lifetime of Green Dion-Jacobson Perovskite Light-Emitting Diodes[J]. ACS APPLIED MATERIALS & INTERFACES,2023,15(25):30083-30092.

Qin, Xinshun.,He, Yanling.,Tao, Chun Ki.,Sergeev, Aleksandr.,Wong, Kam Sing.,...&Djurisic, Aleksandra B..(2023).Effect of Passivating Molecules and Antisolvents on Lifetime of Green Dion-Jacobson Perovskite Light-Emitting Diodes.ACS APPLIED MATERIALS & INTERFACES,15(25),30083-30092.

Qin, Xinshun,et al."Effect of Passivating Molecules and Antisolvents on Lifetime of Green Dion-Jacobson Perovskite Light-Emitting Diodes".ACS APPLIED MATERIALS & INTERFACES 15.25(2023):30083-30092.