Optical properties of the crumpled pattern of selectively layered MoS^sub 2

Crumple-structured two-dimensional MoS2was evaluated as an essential element for future optoelectronic and stretchable devices owing to its interesting optical properties. This Letter reports the characteristics of the crumpled structure of MoS2directly layered on a MoS2sheet by chemical vapor deposition. The crumpling structure is presented as a method for selectively layering MoS2with crumpled layered patterning and tunable optical properties as a crumpled structure on a single substrate. Optical analysis by the fast Fourier transform revealed the distribution characteristics of the crumple structure, and a Raman, photoluminescence, and optical absorption analysis confirmed the change in peak shift and intensity according to the degree of the crumpled structure. This material has potential future optoelectronic applications.