Hongze Xia

TL;DR: A stronger phonon bottleneck effect in hybrid perovskites than in their inorganic counterparts is shown, which suggests a new and general method for achieving long-lived hot carriers in materials.

TL;DR: In this article, a hot carrier cell is proposed to extract the electrical energy from photo-generated carriers before they thermalise to the band edges, which can potentially achieve a high current and a high voltage and hence very high efficiencies up to 66% for unconcentrated sunlight and 85% under maximum concentration.

TL;DR: In this paper, the authors investigated the ultrafast carrier dynamics in a 1'μm bulk In0.265Ga0.735N thin film grown using energetic neutral atom-beam lithography/epitaxy molecular beam epitaxy.

TL;DR: In this article, the authors presented a dynamical hot carrier theory that extracts the carrier temperature and the instantaneous carrier occupation from transient absorption spectra, and applied this model to two transition metal nitride materials, HfN and ZrN.

TL;DR: In this article, a hot carrier solar cell is proposed to achieve high energy conversion efficiencies approaching the thermodynamic limit of infinitely stacked multi-junction solar cells: 65% under one sun and 86% under maximally concentrated.