3 papers
physics.optics2026
An ultra-wide-bandgap semiconductor photodetector for linear measurement of bright sub-bandgap light
Jiahao Dong, Zhenjing Liu, Rafael Jaramillo
Semiconductor photodetectors are conventionally optimized for sensing weak optical signals, and they typically saturate at low-to-moderate light intensity. Here, we demonstrate sub…
cond-mat.mtrl-sci2025
Epitaxial formation of ultrathin HfO2 on graphene by sequential oxidation
Zhenjing Liu, Qian Mao, Varun Kamboj +6
We demonstrate the formation of epitaxial, ultrathin hafnia (HfO2) on graphene. Monoclinic hafnia (m-HfO2) forms as the end of a series of sequential oxidation reactions. Starting…
cond-mat.mtrl-sci2024
Emergent Moiré fringes in direct-grown quasicrystal
Jingwei Li, Kejie Bao, Honglin Sun +13
Quasicrystals represent a category of rarely structured solids that challenge traditional periodicity in crystal materials. Recent advancements in the synthesis of two-dimensional…