Strong quantum-confined excitation and emission from violet phosphorus quantum dots
Strong quantum-confined excitation and emission from violet phosphorus quantum dots
复制标题
紫磷量子点的强量子限制激发和发射
DOI:
10.1063/5.0089468
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发表时间:
2022-04
影响因子:
4
通讯作者:
X. L. Wu
中科院分区:
文献类型:
--
作者:
Y. W. Zhan;K. Yan;J. H. Wu;H. G. Zhu;J. Chen;S. L. Tang;Z. Y. Zhang;X. L. Wu
As a new type of two-dimensional semiconductor material, violet phosphorus (VP) has recently attracted much attention for applications in the field of optoelectronics. Although mechanical exfoliation has been used to prepare VP nanoribbons or nanosheets, production of the high quantum yield VP quantum dots (VPQDs) remains a challenge. Herein, the VPQDs are prepared via liquid exfoliation in ethanol and subsequent solvothermal treatment under 180 °C in dimethylformamide. The prepared VPQDs have a mean size of about 2 nm and can emit a strong blue photoluminescence (PL) when exchanged in ethanol solution. The quantum yield can reach 8.6%. The strong PL arises from both the band-to-band recombination related to quantum confinement effects and P-O-C related surface bonding state. Furthermore, the VPQDs solution has a good photostability under ambient conditions, suggesting their possible potential in fluorescent biological imaging and photocatalytic reactions.
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影响因子:
--
作者:
H. Thurn;H. Kerbs
通讯作者:
H. Thurn;H. Kerbs
影响因子:
5.9
作者:
Yuge Zhang;Deliang Zhang;Yin Wang;Qian Liu;Qiang Li;M. Dong
通讯作者:
Yuge Zhang;Deliang Zhang;Yin Wang;Qian Liu;Qiang Li;M. Dong
DOI:
10.1002/anie.201912761
发表时间:
2020
期刊:
Angewandte Chemie International Edition
影响因子:
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作者:
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Zhang Jinying
影响因子:
20.4
作者:
Lin, Shenghuang;Lai, Wai Kin;Lau, Shu Ping
通讯作者:
Lau, Shu Ping
影响因子:
17.1
作者:
Ding, Hui;Yu, Shang-Bo;Xiong, Huan-Ming
通讯作者:
Xiong, Huan-Ming