Ultrafast Charge Transfer and Relaxation at a Donor–Acceptor Interface

2021 ◽  
Author(s):  
Fernando Rodríguez Díaz ◽  
Hong-Guang Duan ◽  
R. J. Dwayne Miller ◽  
Michael Thorwart
Keyword(s):  
Charge Transfer ◽  
Donor Acceptor ◽  
Ultrafast Charge Transfer

Electrochemical recognition of alkylimidazolium-mediated ultrafast charge transfer on graphene surfaces

2018 ◽  
Vol 54 (6) ◽  
pp. 666-669
Author(s):  
Hucheng Zhang ◽  
Mengmeng Wang ◽  
Jing Zhao ◽  
Shitao Han ◽  
Haixia Cheng ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Electrochemical Method ◽  
Active Sites ◽  
High Sensitivity ◽  
Metal Free ◽  
Sensitivity And Selectivity ◽  
Donor Acceptor ◽  
Ultrafast Charge Transfer ◽  
Electrochemical Recognition

The charge transfer and active sites of metal-free imidazolium-based composites were unveiled by an electrochemical method with high sensitivity and selectivity due to the specific donor–acceptor coupling of imidazolium with NO2−.

Ultrafast charge transfer in an electron donor–acceptor complex

1994 ◽  
Vol 100 (7) ◽  
pp. 4797-4810 ◽  
Author(s):  
Klaas Wynne ◽  
C. Galli ◽  
R. M. Hochstrasser
Keyword(s):  
Charge Transfer ◽  
Electron Donor ◽  
Acceptor Complex ◽  
Donor Acceptor ◽  
Ultrafast Charge Transfer

Nonequilibrium Ultrafast Charge Transfer Reactions in Photoexcited Donor-Acceptor Pairs

2011 ◽  
pp. 317-333 ◽  
Author(s):  
Valentina A. Mikhailova ◽  
Sergey V. Feskov ◽  
Vladimir N. Ionkin ◽  
Vladislav V. Yudanov ◽  
Anatoly I. Ivanov
Keyword(s):  
Charge Transfer ◽  
Transfer Reactions ◽  
Donor Acceptor ◽  
Charge Transfer Reactions ◽  
Ultrafast Charge Transfer

Ultrafast charge transfer at the electrode−electrolyte interface via an artificial dielectric layer

2021 ◽  
Vol 494 ◽  
pp. 229710
Author(s):  
Takashi Teranishi ◽  
Kaisei Kozai ◽  
Sou Yasuhara ◽  
Shintaro Yasui ◽  
Naoyuki Ishida ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Dielectric Layer ◽  
Electrolyte Interface ◽  
Artificial Dielectric ◽  
Ultrafast Charge Transfer

scholarly journals Long-lived charge separation following pump-wavelength–dependent ultrafast charge transfer in graphene/WS2 heterostructures

2021 ◽  
Vol 7 (9) ◽  
pp. eabd9061
Author(s):  
Shuai Fu ◽  
Indy du Fossé ◽  
Xiaoyu Jia ◽  
Jingyin Xu ◽  
Xiaoqing Yu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Separation ◽  
Transient Absorption ◽  
Transition Metal Dichalcogenides ◽  
Thermionic Emission ◽  
Great Promise ◽  
Metal Dichalcogenides ◽  
Ultrafast Charge Transfer ◽  
Device Operation ◽  
Interfacial Charge

Van der Waals heterostructures consisting of graphene and transition metal dichalcogenides have shown great promise for optoelectronic applications. However, an in-depth understanding of the critical processes for device operation, namely, interfacial charge transfer (CT) and recombination, has so far remained elusive. Here, we investigate these processes in graphene-WS2 heterostructures by complementarily probing the ultrafast terahertz photoconductivity in graphene and the transient absorption dynamics in WS2 following photoexcitation. We observe that separated charges in the heterostructure following CT live extremely long: beyond 1 ns, in contrast to ~1 ps charge separation reported in previous studies. This leads to efficient photogating of graphene. Furthermore, for the CT process across graphene-WS2 interfaces, we find that it occurs via photo-thermionic emission for sub-A-exciton excitations and direct hole transfer from WS2 to the valence band of graphene for above-A-exciton excitations. These findings provide insights to further optimize the performance of optoelectronic devices, in particular photodetection.

Theoretical study on the charge transfer mechanism at donor/acceptor interface: Why TTF/TCNQ is inadaptable to photovoltaics?

2016 ◽  
Vol 145 (24) ◽  
pp. 244705 ◽  
Author(s):  
Shuang-Bao Li ◽  
Yun Geng ◽  
Yu-Ai Duan ◽  
Guang-Yan Sun ◽  
Min Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Theoretical Study ◽  
Transfer Mechanism ◽  
Charge Transfer Mechanism ◽  
Donor Acceptor

Ultrafast charge transfer in MoS 2 /WSe 2 p–n Heterojunction

2D Materials ◽  
2016 ◽  
Vol 3 (2) ◽  
pp. 025020 ◽  
Author(s):  
Bo Peng ◽  
Guannan Yu ◽  
Xinfeng Liu ◽  
Bo Liu ◽  
Xiao Liang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Ultrafast Charge Transfer
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