Dual-Emission and Two Charge-Transfer States in Ytterbium-doped Cesium Lead Halide Perovskite Solid Nanocrystals
Dual-Emission and Two Charge-Transfer States in Ytterbium-doped Cesium Lead Halide Perovskite Solid Nanocrystals
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掺镱铯铅卤化物钙钛矿固体纳米晶体的双发射和两种电荷转移态
DOI：
10.1021/acs.jpcc.8b07906
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发表时间：
2018-11
影响因子：
3.7
通讯作者：
Wang Qiming
中科院分区：
文献类型：
--
作者：
Zhou Lin;Liu Taoran;Zheng Jun;Yu Kai;Yang Fan;Wang Nan;Zuo Yuhua;Liu Zhi;Xue Chunlai;Li Chuanbo;Cheng Buwen;Wang Qiming
在掺镱钙钛矿固体纳米晶体中，除了 Yb3+ 离子的近红外发射之外，还观察到了一些不寻常的现象。对掺杂动力学和能量转移过程进行了系统研究。观察到的钙钛矿纳米晶体在可见光区域独特的双峰光致发光（PL）发射可分别归因于钙钛矿纳米晶体近表面区域和内部区域的辐射复合。基于双峰 PL 发射的深入研究阐明了钙钛矿纳米晶体中掺杂的动力学过程。一旦近表面区域稀土离子的掺杂浓度超过一定值，掺杂离子开始浸入主体纳米晶体的内部区域。掺镱钙钛矿固体纳米晶体的不寻常激发光谱可以通过~24 000 cm–1 (CT1)和~21 460 cm–1 (CT2)处存在两个电荷转移(CT)态来解释，并且这两种状态都可以在近s...
Some unusual phenomena besides near-infrared emission of Yb3+ ions have been observed in ytterbium-doped perovskite solid nanocrystals. A systematic study on doping kinetic and energy-transfer processes is presented. The observed unique dual-peak photoluminescence (PL) emission of perovskite nanocrystals in the visible region can be attributed to radiative recombination in the near-surface region and the interior region of the perovskite nanocrystals, respectively. Insightful studies based on dual-peak PL emission clarify the kinetic process of doping in perovskite nanocrystals. Once the dopant concentration of rare earth ions in the near-surface region is more than a certain value, the dopant ions start to immerse into the interior region of the host nanocrystals. The unusual excitation spectra of ytterbium-doped perovskite solid nanocrystals could be explained by the presence of two charge-transfer (CT) states at ∼24 000 cm–1 (CT1) and ∼21 460 cm–1 (CT2), and both of them could be observed in the near-s...
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影响因子：
29.4
作者：
Wang, Yue;Li, Xiaoming;Sun, Handong
通讯作者：
Sun, Handong
双光子泵浦钙钛矿半导体纳米晶体激光器
影响因子：
15
作者：
Xu, Yanqing;Chen, Qi;Xiao, Min
通讯作者：
Xiao, Min
影响因子：
15
作者：
Yamada, Yasuhiro;Yamada, Takumi;Kanemitsu, Yoshihiko
通讯作者：
Kanemitsu, Yoshihiko
DOI：
10.1007/978-3-662-03313-5
发表时间：
1995-12
期刊：
--
影响因子：
--
作者：
P. Y. Yu;M. Cardona
通讯作者：
P. Y. Yu;M. Cardona
影响因子：
3.9
作者：
Boutinaud, P;Pinel, E;Bettinelli, M
通讯作者：
Bettinelli, M