Efficient Redox-Neutral Photocatalytic Formate to Carbon Monoxide Conversion Enabled by Long-Range Hot Electron Transfer from Mn-Doped Quantum Dots

2021 ◽  
Author(s):  
Connor Orrison ◽  
Jeremy R. Meeder ◽  
Bowen Zhang ◽  
Joseph Puthenpurayil ◽  
Michael B. Hall ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Monoxide ◽  
Electron Transfer ◽  
Long Range ◽  
Hot Electron ◽  
Doped Quantum Dots ◽  
Hot Electron Transfer ◽  
Mn Doped

Carrier relaxation dynamics in type-II ZnO/CdSe quantum dot heterostructures

2017 ◽  
Vol 19 (36) ◽  
pp. 24896-24902
Author(s):  
Sandeep Verma ◽  
Hirendra N. Ghosh
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Core Shell ◽  
Type Ii ◽  
Hot Electron ◽  
Relaxation Dynamics ◽  
Carrier Relaxation ◽  
Cdse Quantum Dot ◽  
Hot Electron Transfer ◽  
Carrier Relaxation Dynamics

Hot electron transfer from CdSe to ZnO in core/shell quantum dots before the onset of carrier cooling in CdSe shell.

Breaking the short-range proximity requirement in quantum dot/molecular catalyst hybrids for CO2 reduction via long-range hot electron sensitization

2020 ◽  
Vol 8 (26) ◽  
pp. 12984-12989
Author(s):  
David Parobek ◽  
Jeremy R. Meeder ◽  
Joseph Puthenpurayil ◽  
Michael Nippe ◽  
Dong Hee Son
Keyword(s):  
Electron Transfer ◽  
Quantum Dot ◽  
Hybrid Systems ◽  
Long Range ◽  
Short Range ◽  
Co2 Reduction ◽  
Hot Electron ◽  
Molecular Catalyst ◽  
Hot Electron Transfer

Long-range hot electron transfer removes the proximity requirement in quantum dot-molecular catalyst hybrid systems for CO2 reduction.

scholarly journals Ultrafast Electron Transfer from CdSe Quantum Dots to a [FeFe]-Hydrogenase Mimic

2021 ◽  
Author(s):  
Alexander Schleusener ◽  
Mathias Micheel ◽  
Stefan Benndorf ◽  
Markus Rettenmayr ◽  
Wolfgang Weigand ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Charge Separation ◽  
Hydrogen Generation ◽  
Cdse Quantum Dots ◽  
Hot Electron ◽  
Time Resolved ◽  
Transfer Processes ◽  
Sacrificial Agent ◽  
Hot Electron Transfer

The combination of CdSe nanoparticles as photosensitizers and [FeFe]-hydrogenase mimics is known to result in efficient systems for light-driven hydrogen generation. Nevertheless, little is known about the details of the light-induced charge-transfer processes. Here we investigate the timescale of light-induced electron transfer between CdSe quantum dots and a simple [FeFe]-hydrogenase mimic adsorbed on the surface of the quantum dot under non-catalytic conditions. Our time-resolved spectroscopic investigation shows that hot electron transfer on a sub-ps timescale and band-edge electron transfer on a sub-10-ps timescale occurs. Fast recombination is observed in the absence of a sacrificial agent or protons, which under real catalytic conditions would quench remaining holes or could stabilize the charge separation. <br>

scholarly journals Ultrafast Electron Transfer from CdSe Quantum Dots to a [FeFe]-Hydrogenase Mimic

2021 ◽  
Author(s):  
Alexander Schleusener ◽  
Mathias Micheel ◽  
Stefan Benndorf ◽  
Markus Rettenmayr ◽  
Wolfgang Weigand ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Charge Separation ◽  
Hydrogen Generation ◽  
Cdse Quantum Dots ◽  
Hot Electron ◽  
Time Resolved ◽  
Transfer Processes ◽  
Sacrificial Agent ◽  
Hot Electron Transfer

The combination of CdSe nanoparticles as photosensitizers and [FeFe]-hydrogenase mimics is known to result in efficient systems for light-driven hydrogen generation. Nevertheless, little is known about the details of the light-induced charge-transfer processes. Here we investigate the timescale of light-induced electron transfer between CdSe quantum dots and a simple [FeFe]-hydrogenase mimic adsorbed on the surface of the quantum dot under non-catalytic conditions. Our time-resolved spectroscopic investigation shows that hot electron transfer on a sub-ps timescale and band-edge electron transfer on a sub-10-ps timescale occurs. Fast recombination is observed in the absence of a sacrificial agent or protons, which under real catalytic conditions would quench remaining holes or could stabilize the charge separation. <br>

scholarly journals Nonplasmonic Hot-Electron Photocurrents from Mn-Doped Quantum Dots in Photoelectrochemical Cells

ChemPhysChem ◽  
2016 ◽  
Vol 17 (5) ◽  
pp. 660-664 ◽  
Author(s):  
Yitong Dong ◽  
Daniel Rossi ◽  
David Parobek ◽  
Dong Hee Son
Keyword(s):  
Quantum Dots ◽  
Photoelectrochemical Cells ◽  
Hot Electron ◽  
Doped Quantum Dots ◽  
Mn Doped

In situ Raman probing of hot‐electron transfer at Au‐graphene interfaces with atomic layer accuracy

2021 ◽  
Author(s):  
Jing-Liang Yang ◽  
Hong-Jia Wang ◽  
Zhenwei Zhu ◽  
Mu-Fei Yue ◽  
Wei-Min Yang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Atomic Layer ◽  
Hot Electron ◽  
In Situ Raman ◽  
Hot Electron Transfer

Direct Observation of an Intermediate State for a Surface Photochemical Reaction Initiated by Hot Electron Transfer

2005 ◽  
Vol 109 (30) ◽  
pp. 14481-14485 ◽  
Author(s):  
Junseok Lee ◽  
Sunmin Ryu ◽  
Jinyoung Chang ◽  
Sangjin Kim ◽  
Seong Keun Kim
Keyword(s):  
Electron Transfer ◽  
Direct Observation ◽  
Intermediate State ◽  
Photochemical Reaction ◽  
Hot Electron ◽  
Hot Electron Transfer
Sign in / Sign up

Export Citation Format

Share Document