Thematic Center for Green Technology

Thematic Center for Green Technology
Our goal is to explore innovative manufacturing and emerging materials in order to expedite the development and implementation of next-generation energy technologies for better life and industrial advancements.

Focusing project

Research Content

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Study two-dimensional materials for ultra-thin, high efficient optoelectronics

The epitaxial growth techniques for the wafer-scale, high quality 2-D materials such as graphene, (TMDCs) and related heterostructures are well established and developed in RCAS.
Beside the fundamental studies on the new material properties, the PIs in RCAS are also working on the novel optoelectronic devices with 2-D semiconductors such as LEDs, lasers and phototransistors.
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The development of battery-used materials and luminescent materials

The PIs in RCAS are working on the solid-state battery, flexible solar cells, and light-emitting diodes with novel perovskite materials.

Achievements

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Signatures of Moire trions inWSe2/MoSe2 heterobilayers - Nature 594, 46–50 (2021)

We report significant coupling between trions and Moiré potential of Moiré superlattices in TMDCs. These findings will facilitate the future development for probing many-body phenomena and quantum device applications.
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New opportunity from microscale ordering under high entropy: ultra-elastic high entropy Elinvar alloy - Nature 602, 251–257 (2022)

By performing a series of large-scale density functional theory calculations, we successfully reveal the atomistic structure of Co25Ni25(HfTiZr)50 chemically complex alloy. The large atomic size mismatch of 11% could be accommodated by judicious arrangement of atomic sites. Our atomistic simulations indicate that the large atomic size misfit and induced strong lattice distortion (9%) are responsible for the outstanding elastic limit as well as the Elinvar effects of this complex alloy.