Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 56, Issue 2, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1361-6463/aca41c
Keywords
2D materials; p-type semiconductors; metal chalcogenides; electronics; optoelectronics
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Two-dimensional metal chalcogenides (MCs) have shown great potential in high-performance (opto) electronic devices. The development of p-type MCs is urgently needed for various applications. In this review, we summarize recent advances in the synthesis routes and doping strategies of 2D p-type MCs, as well as their applications in electronics and optoelectronics. We also highlight the challenges and prospects in this field.
Two-dimensional (2D) metal chalcogenides (MCs) showed great potential in meeting the requirements of high-performance (opto) electronic devices. In addition to the usual n-type MCs, developing p-type MCs is urgently demanded in preparing p-n junctions, bipolar junction transistors, field-effect transistors, etc. To this end, specified synthesis routes and engineering strategies for their key properties in (opto) electronics, including doping states, contact barriers and resistances, are critical to improving their performance. In the review, we summarize the recent advances in 2D p-type MCs by focusing on their direct synthesis routes, e.g. mechanical exfoliation, liquid exfoliation, chemical vapor deposition, and the p-type doping strategies, including substitutional doping, charge transfer doping and electrostatic doping. The corresponding applications in electronics and optoelectronics are also involved. Finally, the challenges and prospects of 2D p-type MCs are presented to provide a reference in this field.
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