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Proceedings Paper

Microscale deposition of 2D materials via laser induced backwards transfer (Conference Presentation)

Paper Abstract

2D materials such as graphene have great potential as the basis for novel optoelectronic devices. Typically, 2D materials are produced via chemical vapor deposition and therefore form continuous layers. Here Laser Induced Backwards Transfer (LIBT) is used to deposit pixels of 2D materials with precisely controlled size, shape and position. In LIBT, part of the laser energy that is absorbed in the donor substrate becomes kinetic energy imparted to the 2D material, causing localised transfer of 2D material onto the receiver. The capability to deposit high-quality intact 2D materials, in well-defined microscale pixels will eliminate costly and time-consuming lithographic processing.

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11271, Laser 3D Manufacturing VII, 112710D (9 March 2020); doi: 10.1117/12.2541964
Show Author Affiliations
Matthew F. Praeger, Optoelectronics Research Ctr. (United Kingdom)
Robert W. Eason, Optoelectronics Research Ctr. (United Kingdom)
Ben Mills, Optoelectronics Research Ctr. (United Kingdom)

Published in SPIE Proceedings Vol. 11271:
Laser 3D Manufacturing VII
Bo Gu; Hongqiang Chen; Henry Helvajian, Editor(s)

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