Ultrathin Single-Crystalline Boron Nanosheets for Enhanced Electro-Optical Performances.

ABSTRACT: Large-scale single-crystalline ultrathin boron nanosheets (UBNSs, ≈10 nm) are fabricated through an effective vapor-solid process via thermal decomposition of diborane. The UBNSs have obvious advantages over thicker boron nanomaterials in many aspects. Specifically, the UBNSs demonstrate excellent field emission performances with a low turn-on field, E_to, of 3.60 V μm^-1 and a good stability. Further, the dependence of (turn-on field) E_to/(threshold field) E_thr and effective work function, Φ_e, on temperature is investigated and the possible mechanism of temperature-dependent field emission phenomenon has been discussed. Moreover, electronic transport in a single UBNS reveals it to be an intrinsic p-type semic

SUBMITTER: Xu J 

PROVIDER: S-EPMC5115407 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature