Wash-induced multicolor tuning of carbon nano-dot/micro-belt hybrids with full recyclability and stable color convertibility

Nanoscale
Shuai ChengWei Huang

Abstract

Multicolor carbon phosphors as emerging light conversion materials, with full recyclability and stable color convertibility, are poised to accelerate the sustainable development of environment-friendly optoelectronics. Herein, we firstly report a facile strategy, combining single-step hydrothermal and differential washing methods, for the preparation of multicolor carbon emitters with nano-dot/micro-belt structures. The as-prepared hybrids exhibit excellent film-forming ability and demonstrate controllable multicolor solid-state luminescence ranging from white and green to blue light emission, by utilizing the synergistic effect between nano-dot and micro-belt structures. Particularly, the hybrid white emitters possess a robust ability of being fully recyclable without any performance degradation and formation of harmful byproducts. Moreover, light-emitting devices (LEDs) coated with the hybrid emitters show stable voltage-independent luminescence behavior in lighting applications. This work provides a simple route to modulate the optical properties of multicolor carbon-based emitters and shows great potential in the sustainable development of lighting-related products.

References

Aug 12, 2014·Nature Communications·Jiechao GeXiaodong Han
Jan 16, 2015·Advanced Materials·Lei BaoDai-Wen Pang
Sep 25, 2015·Nanoscale·Zhixiong LiMin Wei
Jan 18, 2017·Chemical Communications : Chem Comm·Xiaogang Yang, Dongpeng Yan
Mar 16, 2017·Angewandte Chemie·Francesca ArcudiMaurizio Prato
Apr 19, 2017·Advanced Materials·Yuri ChoiByeong-Su Kim
Jun 24, 2017·Angewandte Chemie·Feng LiHuaping Xu
Dec 2, 2017·Angewandte Chemie·Andrés Ferrer-RuizNazario Martín

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Methods Mentioned

BETA
transmission electron microscopy
dynamic light scattering
scanning electron microscopy
AFM
X-ray
chips

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