TY - GEN
T1 - Thermal Laser-Assisted Manufacturing of Two-Dimensional Atomic Layer Heterostructures
AU - Wang, Yingtao
AU - Zhang, Xian
N1 - Publisher Copyright:
© 2021, The Minerals, Metals & Materials Society.
PY - 2021
Y1 - 2021
N2 - A unique and novel concept about laser printing technology by incorporating a preformed cartridge was proposed to fabricate two-dimensional (2D) heterostructure photoelectric devices. COMSOL multiphysics software was used to perform a simulation to study the factors influencing laser printing performance by constructing a 3D physical model, including material thickness, laser power and spot size. The thinner material thickness can ensure the same temperature distribution on the upper and lower surfaces of PPC, which is conducive to the consistent melting performance. The laser power mainly affects the temperature intensity. The laser power needs to be finely adjusted because even if the laser power differs by 0.5 mW, the temperature can differ by close to 5 °C. The laser spot size has a great influence on the temperature resolution, with the resolution of 100 and 200 nm differing by about 1 time. Under optimal conditions, a resolution of 48 nm can be obtained, which is only nearly 50% of the laser spot size. It is also feasible to obtain 2D materials of other sizes by modifying the parameters to achieve a flexible and controllable preparation scheme. In addition, it is achievable to accomplish a multilayer printing process of 2D materials that do not affect each other, thereby realizing the free combination of heterostructures. The simulation results provide a foundation for technology optimization of subsequent process realization.
AB - A unique and novel concept about laser printing technology by incorporating a preformed cartridge was proposed to fabricate two-dimensional (2D) heterostructure photoelectric devices. COMSOL multiphysics software was used to perform a simulation to study the factors influencing laser printing performance by constructing a 3D physical model, including material thickness, laser power and spot size. The thinner material thickness can ensure the same temperature distribution on the upper and lower surfaces of PPC, which is conducive to the consistent melting performance. The laser power mainly affects the temperature intensity. The laser power needs to be finely adjusted because even if the laser power differs by 0.5 mW, the temperature can differ by close to 5 °C. The laser spot size has a great influence on the temperature resolution, with the resolution of 100 and 200 nm differing by about 1 time. Under optimal conditions, a resolution of 48 nm can be obtained, which is only nearly 50% of the laser spot size. It is also feasible to obtain 2D materials of other sizes by modifying the parameters to achieve a flexible and controllable preparation scheme. In addition, it is achievable to accomplish a multilayer printing process of 2D materials that do not affect each other, thereby realizing the free combination of heterostructures. The simulation results provide a foundation for technology optimization of subsequent process realization.
KW - Heterostructures
KW - Printing
KW - Simulation
KW - Two-dimensional materials
UR - http://www.scopus.com/inward/record.url?scp=85104475551&partnerID=8YFLogxK
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U2 - 10.1007/978-3-030-65261-6_3
DO - 10.1007/978-3-030-65261-6_3
M3 - Conference contribution
AN - SCOPUS:85104475551
SN - 9783030652609
T3 - Minerals, Metals and Materials Series
SP - 25
EP - 34
BT - TMS 2021 150th Annual Meeting and Exhibition Supplemental Proceedings
T2 - 150th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2021
Y2 - 15 March 2021 through 18 March 2021
ER -