The record low thermal conductivity of monolayer cuprous iodide (CuI) with a direct wide bandgap
Jinyuan Xu, Ailing Chen, Linfeng Yu, Donghai Wei, Qikun Tian, Huimin Wang, Zhenzhen Qin, Guangzhao Qin
Abstract
) and other typical semiconductors. Moreover, an ultrawide direct bandgap of 3.57 eV is found in monolayer CuI, which is even larger than that of γ-CuI (2.95-3.1 eV), promising for applications in nano-/optoelectronics with better optical performance. The ultralow thermal conductivity and direct wide bandgap of monolayer CuI as reported in this study would promise its potential applications in transparent and wearable electronics.
Topics & Concepts
MonolayerMaterials scienceBand gapIodideThermal conductivityConductivityDirect and indirect band gapsNanotechnologyOptoelectronicsInorganic chemistryComposite materialChemistryPhysical chemistryAdvanced Thermoelectric Materials and DevicesCopper-based nanomaterials and applicationsZnO doping and properties