Time-resolved X-ray photoelectron spectroscopy techniques for the study of interfacial charge dynamics

S Neppl, O Gessner - Journal of Electron Spectroscopy and Related …, 2015‏ - Elsevier
X-ray photoelectron spectroscopy (XPS) is one of the most powerful techniques to
quantitatively analyze the chemical composition and electronic structure of surfaces and …

Electron-hole recombination on ZnO (0001) single-crystal surface studied by time-resolved soft X-ray photoelectron spectroscopy

R Yukawa, S Yamamoto, K Ozawa, M Emori… - Applied Physics …, 2014‏ - pubs.aip.org
Time-resolved soft X-ray photoelectron spectroscopy (PES) experiments were performed
with time scales from picoseconds to nanoseconds to trace relaxation of surface …

Time-resolved photoemission to unveil electronic coupling between absorbing and transport layers in a quantum dot-based solar cell

C Greboval, P Rastogi, J Qu, A Chu… - The Journal of …, 2020‏ - ACS Publications
Lead sulfide (PbS) colloidal quantum dot-based photodiodes are remarkable structures
because of their outstanding optoelectronic performances obtained via colloidal …

What Determines the Lifetime of Photoexcited Carriers on TiO2 Surfaces?

K Ozawa, S Yamamoto, R Yukawa, R Liu… - The Journal of …, 2016‏ - ACS Publications
Pump–probe time-resolved X-ray photoelectron spectroscopy measurements have been
carried out to comparatively assess the relaxation process of the photoexcited states on …

Ultrafast magnetic dynamics in insulating YBa2Cu3O6.1 revealed by time resolved two-magnon Raman scattering

JA Yang, N Pellatz, T Wolf, R Nandkishore… - Nature …, 2020‏ - nature.com
Measurement and control of magnetic order and correlations in real time is a rapidly
develo** scientific area relevant for magnetic memory and spintronics. In these …

Ultrafast Ferroelectric Ordering on the Surface of a Topological Semimetal MoTe2

Y Dai, Q Zheng, ME Ziffer, D Rhodes, J Hone… - Nano Letters, 2021‏ - ACS Publications
Transient tuning of material properties by light usually requires intense laser fields in the
nonlinear excitation regime. Here, we report ultrafast ferroelectric ordering on the surface of …

Pump− probe experiments at the TEMPO beamline using the low-α operation mode of Synchrotron SOLEIL

MG Silly, T Ferté, MA Tordeux, D Pierucci… - Synchrotron …, 2017‏ - journals.iucr.org
The SOLEIL synchrotron radiation source is regularly operated in special filling modes
dedicated to pump–probe experiments. Among others, the low-α mode operation is …

A method to relate the presence of structural defects and impurities and their impact on the electrical activity in silicon for photovoltaic applications

S Houam, H Ouaddah, G Regula, I Périchaud… - Solar Energy Materials …, 2025‏ - Elsevier
In this work, we combine complementary diagnostic methods to characterise thoroughly
crystalline silicon with a view to its application to photovoltaic (PV) solar cells: structural and …

A surface science approach to unveiling the TiO2 photocatalytic mechanism: Correlation between photocatalytic activity and carrier lifetime

K Ozawa, S Yamamoto, K Mase… - e-Journal of Surface …, 2019‏ - jstage.jst.go.jp
Establishing an accurate view of the photocatalytic mechanism of titanium dioxide (TiO2)
has been a challenging task since the discovery of the Honda-Fujishima effect. Despite the …

Hybridization gap formation in the Kondo insulator observed using time-resolved photoemission spectroscopy

M Okawa, Y Ishida, M Takahashi, T Shimada, F Iga… - Physical Review B, 2015‏ - APS
A detailed low-energy electronic structure of a Kondo insulator YbB 12 was revealed by a
synergetic combination of ultra-high-resolution laser photoemission spectroscopy (PES) and …