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Controlled Synthesis of Organic/Inorganic van de Waals Solid for Tunable Light-matter Interactions | Lin Niu
; Xinfeng Liu
; Chunxiao Cong
; Chunyang Wu
; Di Wu
; Tay-Rong Chang
; Hong Wang
; Qingsheng Zeng
; Jiadong Zhou
; Xingli Wang
; Wei Fu
; Peng Yu
; Qundong Fu
; Zhuhua Zhang
; Boris I. Yakobson
; Beng Kang Tay
; Horng-Tay Jeng
; Hsin Lin
; Tze Chien Sum
; Chuanhong Jin
; Haiyong He
; Ting Yu
; Zheng Liu
; | Date: |
10 Jun 2015 | Abstract: | Van de Waals (vdW) solids, as a new type of artificial materials that
consisting of alternative layers bonded by weak interactions, have shed light
on fantastic optoelectronic devices. As a result, a large variety of shining
vdW devices have been engineered via layer-by-layer stacking of two-dimensional
materials, although shadowed by the difficulties of fabrication. Alternatively,
direct growth of vdW solids have been proved a scalable and swift way towards
vdW solids, reflected by the successful synthesis of graphene/h-BN and
transition metal dichalcogenides (TMDs) vertical heterostructures from
controlled vapor deposition. Enlightened by it, with a three-step deposition
and reaction, we realize high-quality organic and inorganic vdW solids, using
methylammonium lead halide as the organic part (organic perovskite) and 2D
monolayers inorganic as counterpart. Being a perfect light absorbent, the
electrons and holes generated in organic perovskite couple with its inorganic
2D companions, and behave dramatically different in light emission such as PL
intensity and lifetime. Further studies illuminate that h-BN monolayer is a
great complement to organic perovskite for persisting its original optical
properties. Furthermore, in light of the ready-fabrication of 2D monolayer,
organic/inorganic vdW solid arrays are patterned for red light emitting. This
work illumines the way for designing unprecedented vdW solids with great
potential for kaleidoscopic applications in optoelectronics for both light
emission and solar conversion. | Source: | arXiv, 1506.3241 | Services: | Forum | Review | PDF | Favorites |
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