Photoresponse of Optical Sensors Based on Transition Metal Dichalcogenides: Influence of Thickness on Spectral Characteristics

2019 ◽  
Vol 45 (6) ◽  
pp. 625-627 ◽  
Author(s):  
A. Yu. Avdizhiyan ◽  
S. D. Lavrov ◽  
A. V. Kudryavtsev ◽  
A. P. Shestakova ◽  
M. V. Vasina
Author(s):  
А.Ю. Авдижиян ◽  
С.Д. Лавров ◽  
А.В. Кудрявцев ◽  
А.П. Шестакова ◽  
М.В. Васина

In this work, samples of field-effect transistors were fabricated based on solid solutions of transition metal dichalcogenides and their spectral characteristics were studied using photocurrent spectroscopy. The results of a theoretical estimate of the total optical absorption of two-dimensional semiconductors at different thicknesses of the sample and for different wavelengths of optical radiation with allowance for multibeam interference are presented. It is shown that interference effects make a significant contribution to the change in the shape of the spectral characteristics of optical sensors with a change in the thickness of the photosensitive layer of transition metal dichalcogenides.


ACS Nano ◽  
2021 ◽  
Author(s):  
Miao Zhang ◽  
Martina Lihter ◽  
Tzu-Heng Chen ◽  
Michal Macha ◽  
Archith Rayabharam ◽  
...  

Author(s):  
Yoobeen Lee ◽  
Jin Won Jung ◽  
Jin Seok Lee

The reduction of intrinsic defects, including vacancies and grain boundaries, remains one of the greatest challenges to produce high-performance transition metal dichalcogenides (TMDCs) electronic systems. A deeper comprehension of the...


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