|
Liang Fang, #, , Xu Hejun, #, , Wu Xing, †, Wang Chaolun, , Luo Chen, , Zhang Jian,
|
|
Raman study on a 2D heterostructure as a photovoltaic device. (a) Raman vibrational modes of a vertical bilayer WS2/MoS2 heterostructure. (b) Raman spectra of as-grown 1L WS2 and MoS2 and as-grown, as-transferred WS2/MoS2 heterostructures. (c) Raman spectra of the LB and S modes for as-grown MoS2 films on WS2, AA stacked, AB stacked, and transferred twisted stacked MoS2/WS2 heterostructures, respectively. Reproduced with permission from Ref. [127]. Copyright 2016, Wiley-VCH Verlag GmbH & Co. KGaA. (d) Raman mapping results for lateral WS2/MoS2 heterostructures, MoS2, and WS2, respectively. (e) I–V curve of a lateral WS2/MoS2 heterostructure diode in the dark (black line) and under illumination with a wavelength of 514 nm and power of 1 mW (red line). Inset shows the photovoltaic effect. Reproduced with permission from Ref. [138]. Copyright 2015, American Chemical Society. (f) Schematic of vertical and lateral WS2/MoS2 heterostructures. Reproduced with permission from Ref. [136]. Copyright 2014, Nature Publishing Group.
|
