Journal
NANOTECHNOLOGY
Volume 28, Issue 19, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aa6740
Keywords
MoS2 thin film; liquid exfoliation; residue-free; photovoltaic device
Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [NRF-2016R1A2B4011706]
- National Research Foundation of Korea [2016R1A2B4011706] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Molybdenum disulfide (MoS2) film fabricated by a liquid exfoliation method has significant potential for various applications, because of its advantages of mass production and lowtemperature processes. In this study, residue-free MoS2 thin films were formed during the liquid exfoliation process and their electrical properties were characterized with an interdigitated electrode. Then, the MoS2 film thickness could be controlled by centrifuge condition in the range of 20. similar to 40 nm, and its carrier concentration and mobility were measured at about 7.36. x. 1016 cm(-3) and 4.67 cm(2). V-1 s(-1), respectively. Detailed analysis on the films was done by atomic force microscopy, Raman spectroscopy, and high-resolution transmission electron microscopy measurements for verifying the film quality. For application of the photovoltaic device, a Au/MoS2/silicon/In junction structure was fabricated, which then showed power conversion efficiency of 1.01% under illumination of 100mWcm(-2).
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