TY  - JOUR
AU  - Borgwardt, Mario
AU  - Mahl, Johannes
AU  - Roth, Friedrich
AU  - Wenthaus, Lukas
AU  - Brauße, Felix
AU  - Blum, Monika
AU  - Schwarzburg, Klaus
AU  - Liu, Guiji
AU  - Toma, Francesca M.
AU  - Gessner, Oliver
TI  - Photoinduced Charge Carrier Dynamics and Electron Injection Efficiencies in Au Nanoparticle-Sensitized TiO<sub>2</sub> Determined with Picosecond Time-Resolved X-ray Photoelectron Spectroscopy
JO  - The journal of physical chemistry letters
VL  - 11
IS  - 14
SN  - 1948-7185
CY  - Washington, DC
PB  - ACS
M1  - PUBDB-2021-00536
SP  - 5476 - 5481
PY  - 2020
AB  - Progress in the development of plasmon-enabled light-harvesting technologies requires a better understanding of their fundamental operating principles and current limitations. Here, we employ picosecond time-resolved X-ray photoemission spectroscopy to investigate photoinduced electron transfer in a plasmonic model system composed of 20 nm sized gold nanoparticles (NPs) attached to a nanoporous film of TiO2. The measurement provides direct, quantitative access to transient local charge distributions from the perspectives of the electron donor (AuNP) and the electron acceptor (TiO2). On average, approximately two electrons are injected per NP, corresponding to an electron injection yield per absorbed photon of 0.1
LB  - PUB:(DE-HGF)16
C6  - pmid:32545961
UR  - <Go to ISI:>//WOS:000551546100014
DO  - DOI:10.1021/acs.jpclett.0c00825
UR  - https://bib-pubdb1.desy.de/record/454462
ER  -