Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S-ZnS nanoheterostructures.
Plasmon-induced ultrafast charge transfer in single-particulate Cu(1.94)S-ZnS nanoheterostructures.
复制标题
单颗粒 Cu1.94S-ZnS 纳米异质结构中等离激元诱导的超快电荷转移
DOI:
10.1039/d1na00037c
复制
发表时间:
2021-06-15
影响因子:
4.7
通讯作者:
中科院分区:
文献类型:
--
作者:
Recombination centers generated from structural and interfacial defects in nanoheterostructures (NHs) prevent effective photo-induced charge transfer and have blocked the advance of many photoresponsive applications. Strategies to construct high-quality interfaces in NHs are emerging but are limited in the release of interfacial strain and the integrality of the sublattice. Herein, we synthesize single-particulate Cu1.94S–ZnS NHs with a continuous sublattice using a nanoscale cation exchange reaction (CE). Under near-infrared (NIR) radiation (λ = 1500 nm), femtosecond open-aperture (OA) Z-scan measurements are applied to investigate the nonlinear optical features of samples and verify the existence of plasma-induced charge transfer in the Cu1.94S–ZnS NHs system. The resulting charge transfer time (τCT) of ∼0.091 picoseconds (ps) was confirmed by the femtosecond time-resolved pump–probe technique. Such an ultrafast charge transfer process has been rarely reported in semiconductor–semiconductor NHs. The results suggest that CE can be used as a promising tool to construct well-ordered interfacial structures, which are significant for the performance enhancement of NHs for photon utilization. Recombination centers generated from structural and interfacial defects in nanoheterostructures (NHs) prevent effective photo-induced charge transfer and have blocked the advance of many photoresponsive applications.
登录
查看更多内容
影响因子:
15
作者:
Gariano G;Lesnyak V;Brescia R;Bertoni G;Dang Z;Gaspari R;De Trizio L;Manna L
通讯作者:
Manna L
影响因子:
11
作者:
Jiang, Xiantao;Liu, Shunxiang;Zhang, Han
通讯作者:
Zhang, Han
影响因子:
17.1
作者:
Hewa-Kasakarage, Nishshanka N.;El-Khoury, Patrick Z.;Zamkov, Mikhail
通讯作者:
Zamkov, Mikhail
影响因子:
0.9
作者:
BOHREN, CF
通讯作者:
BOHREN, CF
影响因子:
56.9
作者:
Fenton, Julie L.;Steimle, Benjamin C.;Schaak, Raymond E.
通讯作者:
Schaak, Raymond E.