Environmental Instability and Degradation of Single‐ and Few‐Layer WTe2 Nanosheets in Ambient Conditions. Issue 42 (8th September 2016) - Ye, Fan
Abstract : The ambient environmental instability and degradation mechanism of single‐ and few‐layer WTe2 are investigated. Oxidation of W and Te atoms appears to be a main reason for degradation. Single‐layer samples' Raman signals disappear within 20 min in air. Few‐layer WTe2 exhibits saturating degradation behavior: only the top layer WTe2 is oxidized; the degraded layer can protect inner layers from further degradation.