Branchless Colloidal PbSe Nanorods: Implications for Solution-Processed Optoelectronic and Thermoelectric Devices
Branchless Colloidal PbSe Nanorods: Implications for Solution-Processed Optoelectronic and Thermoelectric Devices
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无分支胶体 PbSe 纳米棒:对溶液处理光电和热电器件的影响
DOI:
10.1021/acsanm.1c02123
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发表时间:
2021
影响因子:
5.9
通讯作者:
Sun, Liangfeng
中科院分区:
文献类型:
--
作者:
Tang, Yiteng;Kandel, Shreedhar R.;Jiang, Zhoufeng;Roland, Paul J.;Ellingson, Randy;Sun, Liangfeng
Acetic acid causes branching of PbSe nanorods during the synthesis of colloidal PbSe nanorods. Removing acetic acid in the reaction solution prevents branching, resulting in uniform nanorods. It increases the photoluminescence quantum yield of the nanorods from 11% (branched) to 38% (branchless). The branchless nanorods exhibit single-exponential photoluminescence decay with a decay constant of 1.3 μs, in contrast to multiple-exponential photoluminescence decay in branched nanorods with an e-folding lifetime of 0.12 μs. The diameter of the nanorods can be tuned from 3.9 to 5.8 nm by changing the reaction temperature, resulting in an energy gap tunable from 0.88 to 0.65 eV. The dependence of the energy gap on the diameter follows the power law: diameter–1.5. The superior optical properties, including long exciton lifetime, high photoluminescence quantum yield, and tunable energy gaps, make the branchless PbSe nanorods an excellent candidate material for thermoelectric and optoelectronic devices.
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影响因子:
3.7
作者:
Anna Rubin;Georgy I. Maikov;D. Kolan;R. Vaxenburg;Jenya Tilchin;Y. Kauffmann;A. Sashchiuk;E. Lifshitz
通讯作者:
E. Lifshitz
DOI:
10.1002/pssr.201600278
发表时间:
2016
期刊:
physica status solidi (RRL) – Rapid Research Letters
影响因子:
--
作者:
S. R. Kandel;Shailendra Chiluwal;Zhoufeng Jiang;Yiteng Tang;P. Roland;K. Subedi;Douglas M. Dimick;P. Moroz;M. Zamkov;R. Ellingson;Jianjun Hu;A. Voevodin;Liangfeng Sun
通讯作者:
Liangfeng Sun
影响因子:
15
作者:
J. Boercker;E. Foos;D. Placencia;J. Tischler
通讯作者:
J. Tischler
影响因子:
3.3
作者:
Wehrenberg, BL;Wang, CJ;Guyot-Sionnest, P
通讯作者:
Guyot-Sionnest, P