Enhanced photoluminescence of double perovskite Cs2SnI6 nanocrystals via Na plus doping

被引：5

作者：

Wei, Haoming ^{[1
]}

Si, Tingyu ^{[1
]}

Xu, Fan ^{[1
]}

Fan, Wuyang ^{[1
]}

Yang, Tengzhou ^{[1
]}

Cao, Bingqiang ^{[2
]}

Juan, Fangying ^{[3
]}

Xu, Jun ^{[3
]}

Wu, Yangqing ^{[1
]}

机构：

[1] Qufu Normal Univ, Sch Phys & Phys Engn, Qufu 273165, Peoples R China

[2] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China

[3] Nanjing Univ, Sch Elect Sci & Engn, Nanjing 210093, Peoples R China

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 15期

基金：

中国国家自然科学基金;

关键词：

HIGHLY LUMINESCENT; STABILITY; CSPBX3;

D O I：

10.1364/OE.495150

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Double perovskites without lead element have attracted great attention in recent years. Further increasing the photoluminescence quantum yield of lead-free double perovskites is necessary for their potential applications. In this work, Na+ doped Cs2SnI6 nanocrystals were synthesized by hot injection method. It was displayed that all the NCs have uniform hexagonal shape with good crystallization. Energy dispersing spectroscopy and X-ray photoelectron spectroscopy proves the Na+ ions were doped in the lattice of perovskite structure. The photoluminescence intensity of doped NCs is increased by 2.7-fold than that of pure NCs. A maximum photoluminescence quantum yield of 72% is obtained. The luminous mechanism was investigated by femtosecond transient absorption spectrum and a self-trap emission was proved by the observation of ground state bleaching and photo-induced absorption signals.& COPY; 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：25298 / 25306

页数：9

共 50 条

[1] Indium Doping of Lead-Free Perovskite Cs2SnI6
Umedov, Shodruz T.
Grigorieva, Anastasia, V
Lepnev, Leonid S.
Knotko, Alexander, V
Nakabayashi, Koji
Ohkoshi, Shin-ichi
Shevelkov, Andrei, V
FRONTIERS IN CHEMISTRY, 2020, 8
[2] Ligand-Free, Quantum-Confined Cs2SnI6 Perovskite Nanocrystals
Dolzhnikov, Dmitriy S.
Wang, Chen
Xu, Yadong
Kanatzidis, Mercouri G.
Weiss, Emily A.
CHEMISTRY OF MATERIALS, 2017, 29 (18) : 7901 - 7907
[3] Enhanced Optoelectronic Properties of Cs2SnI6 Perovskite Through Fluorine Doping: First-Principles Calculations
Allaoui, Isam
El Hallani, Ghizlan
Ouhammou, Ahmed
Fazouan, Nejma
Khuili, Mohamed
Atmani, El Houssine
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS, 2024, : 1484 - 1494
[4] The optoelectronic properties improvement of double perovskites Cs2SnI6 by anionic doping (F−)
Junsheng Wu
Zhuo Zhao
Yanwen Zhou
Scientific Reports, 12
[5] Exploring the stability and physical properties of double perovskite Cs2SnI6 by doping the Cl/Br atom: A DFT study
Guo, Shihui
Zhang, Qiqi
Sa, Rongjian
Liu, Diwen
COMPUTATIONAL AND THEORETICAL CHEMISTRY, 2022, 1209
[6] Intrinsic defects in a photovoltaic perovskite variant Cs2SnI6
Xiao, Zewen
Zhou, Yuanyuan
Hosono, Hideo
Kamiya, Toshio
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2015, 17 (29) : 18900 - 18903
[7] Effect of Li+ Doping on Photoelectric Properties of Double Perovskite Cs2SnI6: First Principles Calculation and Experimental Investigation
Zhang, Jin
Yang, Chen
Liao, Yulong
Li, Shijie
Yang, Pengfei
Xi, Yingxue
Liu, Weiguo
Golosov, Dmitriy A.
Zavadski, Sergey M.
Melnikov, Sergei N.
NANOMATERIALS, 2022, 12 (13)
[8] The optoelectronic properties improvement of double perovskites Cs2SnI6 by anionic doping (F-)
Wu, Junsheng
Zhao, Zhuo
Zhou, Yanwen
SCIENTIFIC REPORTS, 2022, 12 (01)
[9] SnF2-Doped Cs2SnI6 Ordered Vacancy Double Perovskite for Photovoltaic Applications
Murshed, Rubaiya
Thornton, Sarah
Walkons, Curtis
Koh, Jung Jae
Bansal, Shubhra
SOLAR RRL, 2023, 7 (19):
[10] Defect Tolerance to Intolerance in the Vacancy-Ordered Double Perovskite Semiconductors Cs2SnI6 and Cs2TeI6
Neilson, James R. (james.neilson@colostate.edu), 1600, American Chemical Society (138):

← 1 2 3 4 5 →