Increasing the Absorption and the Broadband Absorption TMDCs with Using Photonic Crystals
Authors/Creators
- 1. Department of physics, Alzahra Univercity, Tehran, 1993893973, Iran
Description
Abstract-Nowadays transition material dichalcogenide (TMDC) two-dimensional crystals due to direct band gap
and a significant absorption in the visible region have been highly regarded in optoelectronic devices. The use of
TMDCs in photonic crystals will increase the absorption and performances of them. In this paper, in order to
design a structure with high absorption in a wide range of wavelength, TMDCs wrapping impact in three photonic
crystals including SiO2, Si3N4 and TMDC has been investigated by using the transfer matrix method. Four TMDCs
contains Molybdenum disulfide (MoS2), Molybdenum diselenide (MoSe2), Tungsten disulfide (WS2) and Tungsten
diselenide (WSe2) which in best structures we reached to absorption higher than 66% (92%) in range of 400-700
nm (400-530nm).