The influence of water on the optical properties of single-layer molybdenum disulfide.

Varghese, Joseph O; Agbo, Peter; Sutherland, Alexander M; Brar, Victor W; Rossman, George R; Gray, Harry B; Heath, James R · Adv Mater · 2015

basic_science · Level V

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Abstract

Adsorbed molecules can significantly affect the properties of atomically thin materials. Physisorbed water plays a significant role in altering the optoelectronic properties of single-layer MoS2 , one such 2D film. Here the distinct quenching effect of adsorbed water on the photoluminescence of single-layer MoS2 is demonstrated through scanning-probe and optical microscopy.