A new method of carrier density measurement using photocurrent maps of a 2D material Schottky diode

Title
A new method of carrier density measurement using photocurrent maps of a 2D material Schottky diode
Authors
황도경안종태안일호김득영
Keywords
Carrier concentration; Photocurrent mapping method
Issue Date
2021-02
Publisher
Results in Physics
Citation
VOL 21, 103854
Abstract
A simple method for obtaining the charge carrier density of two-dimensional (2D) materials is proposed herein. A formula is suggested for the extraction of the 2D charge carrier density using the horizontal depletion width, which is visually represented by photocurrent mapping methods. An example of this method is demonstrated using a MoS2 Schottky diode. The results suggest that this method can be useful for a basic analysis of the physical properties of 2D devices.
URI
http://pubs.kist.re.kr/handle/201004/72879
ISSN
2211-3797
Appears in Collections:
KIST Publication > Article
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