Unraveling charge‐separation mechanisms in photocatalyst particles by spatially resolved surface photovoltage techniques

R Chen, F Fan, C Li - Angewandte Chemie International …, 2022 - Wiley Online Library
The photocatalytic conversion of solar energy offers a potential route to renewable energy,
and its efficiency relies on effective charge separation in nanostructured photocatalysts …

Scattering-based light microscopy: from metal nanoparticles to single proteins

L Priest, JS Peters, P Kukura - Chemical reviews, 2021 - ACS Publications
Our ability to detect, image, and quantify nanoscopic objects and molecules with visible light
has undergone dramatic improvements over the past few decades. While fluorescence has …

Spatiotemporal imaging of charge transfer in photocatalyst particles

R Chen, Z Ren, Y Liang, G Zhang, T Dittrich, R Liu… - Nature, 2022 - nature.com
The water-splitting reaction using photocatalyst particles is a promising route for solar fuel
production,,–. Photo-induced charge transfer from a photocatalyst to catalytic surface sites is …

From enhanced diffusion to ultrafast ballistic motion of hybrid light–matter excitations

M Balasubrahmaniyam, A Simkhovich, A Golombek… - Nature Materials, 2023 - nature.com
Transport of excitons and charge carriers in molecular systems can be enhanced by
coherent coupling to photons, giving rise to the formation of hybrid excitations known as …

Operando optical tracking of single-particle ion dynamics in batteries

AJ Merryweather, C Schnedermann, Q Jacquet… - Nature, 2021 - nature.com
The key to advancing lithium-ion battery technology—in particular, fast charging—is the
ability to follow and understand the dynamic processes occurring in functioning materials …

Thermally crosslinked hole conductor enables stable inverted perovskite solar cells with 23.9% efficiency

C Zhang, Q Liao, J Chen, B Li, C Xu, K Wei… - Advanced …, 2023 - Wiley Online Library
Abstract Poly [bis (4‐phenyl)(2, 4, 6‐trimethylphenyl) amine](PTAA) represents the state‐of‐
the‐art hole transport material (HTM) in inverted perovskite solar cells (PSCs). However …

All‐inorganic perovskite single‐crystal photoelectric anisotropy

S Dong, ZY Hu, P Wei, J Han, Z Wang, J Liu… - Advanced …, 2022 - Wiley Online Library
Engineering surface structure can precisely and effectively tune the optoelectronic
properties of halide perovskites, but are incredibly challenging. Herein, the design and …

High ambipolar mobility in cubic boron arsenide revealed by transient reflectivity microscopy

S Yue, F Tian, X Sui, M Mohebinia, X Wu, T Tong… - Science, 2022 - science.org
Semiconducting cubic boron arsenide (c-BAs) has been predicted to have carrier mobility of
1400 square centimeters per volt-second for electrons and 2100 square centimeters per volt …

Confinement and exciton binding energy effects on hot carrier cooling in lead halide perovskite nanomaterials

BP Carwithen, TR Hopper, Z Ge, N Mondal, T Wang… - ACS …, 2023 - ACS Publications
The relaxation of the above-gap (“hot”) carriers in lead halide perovskites (LHPs) is
important for applications in photovoltaics and offers insights into carrier–carrier and carrier …

Ultrafast imaging of polariton propagation and interactions

D Xu, A Mandal, JM Baxter, SW Cheng, I Lee… - Nature …, 2023 - nature.com
Semiconductor excitations can hybridize with cavity photons to form exciton-polaritons (EPs)
with remarkable properties, including light-like energy flow combined with matter-like …