Reconfigurable Doping of Atomically Thin Van Der Waals Semiconductors by Light Colours
- Title
- Reconfigurable Doping of Atomically Thin Van Der Waals Semiconductors by Light Colours
- Authors
- JO, MOON HO; SEO, SEUNGYOUNG; GUNHO, MOON; ODONGO, FRANCIS NGOME OKELLO; PARK, MIN YOUNG; CHEOLHEE, HAN; Soonyoung Cha; Hyunyong Choi; YEOM, HAN WOONG; CHOI, SI YOUNG; Jewook Park
- Date Issued
- 2020-11-04
- Publisher
- The Korean Institute of Metals and Materials
- Abstract
- We report reversible photo-induced doping on atomically thin van der Waals (vdW) semiconductors, whose channel polarities can be repeatedly reconfigured from n-type to p-type and vice versa with light colours. Evidently, this reconfigurable doping is explained by selective light-lattice interactions, such as the characteristic point defect generations and the charged ion incorporation. The precise tunability of the channel polarity and doping levels in a reconfigurable manner of this work may provide a key technological solution toward realisation of new types of monolithic integrated circuitry on atomically thin vdW semiconductors. We demonstrate such a proof-of-concept device, a reconfigurable complementary metal-oxide-semiconductor (CMOS) device on a single vdW semiconductor channel, in which the circuit functions can be dynamically reset from a CMOS inverter to a CMOS switch upon a single shot of light with different colours.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/105717
- Article Type
- Conference
- Citation
- ENGE2020, 2020-11-04
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