Journal ArticleDOI
Photoluminescence mechanism in graphene quantum dots: Quantum confinement effect and surface/edge state
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TLDR
In this article, the photoluminescence mechanism of GQDs can be explained by the size of the GQD, surface chemical groups, and doping atoms, but there is no universal agreement on the specific PL mechanism.About:
This article is published in Nano Today.The article was published on 2017-04-01. It has received 344 citations till now. The article focuses on the topics: Quantum dot & Graphene.read more
Citations
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Carbon dots: synthesis, formation mechanism, fluorescence origin and sensing applications
TL;DR: Carbon dots have received an increasing amount of attention because of their significant advantages in terms of low toxicity, chemical inertness, tunable fluorescence, good water solubility, and physicochemical properties as mentioned in this paper.
Journal ArticleDOI
Review of Carbon and Graphene Quantum Dots for Sensing
TL;DR: The authors suggest that with the potential of these nanomaterials in sensing more research is needed on understanding their optical properties and why the synthetic methods influence their properties so much, into methods of surface functionalization that provide greater selectivity in sensing and into new sensing concepts that utilise the virtues of these nano-materials.
Journal ArticleDOI
Recent progress on the photocatalysis of carbon dots: Classification, mechanism and applications
TL;DR: In this paper, the authors reviewed recent progress on CDs utilized for photocatalysis from different perspectives, including the following three parts: classification and synthesis, mechanism of CDs-derived photocatalysts as well as the applications for environmental issues (up-converted photoluminescence (PL) and energy conversion).
Journal ArticleDOI
Solvent-Controlled Synthesis of Highly Luminescent Carbon Dots with a Wide Color Gamut and Narrowed Emission Peak Widths.
TL;DR: A series of CDs with tunable emission from 443 to 745 nm, quantum yield within 13-54%, and narrowed full width at half maximum (FWHM) from 108 to 55 nm, are obtained by only adjusting the reaction solvents in a one-pot solvothermal route.
Journal ArticleDOI
Micro-light-emitting diodes with quantum dots in display technology
Zhaojun Liu,Chun-Ho Lin,Byung-Ryool Hyun,Chin Wei Sher,Zhijian Lv,Bingqing Luo,Fulong Jiang,Tom Wu,Chih-Hsiang Ho,Hao-Chung Kuo,Jr-Hau He +10 more
TL;DR: Micrometre-sized light-emitting diodes (LEDs) based on quantum dots (QDs) will propel the next generation of display technologies, a review by leading researchers shows.
References
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Journal ArticleDOI
Hydrothermal route for cutting graphene sheets into blue-luminescent graphene quantum dots
TL;DR: This work reports on a novel and simple hydrothermal approach for the cutting of GSs into surface-functionalized GQDs, which were found to exhibit bright blue photoluminescence (PL), which has never been observed in GSs and GNRs owing to their large lateral sizes.
Journal ArticleDOI
The photoluminescence mechanism in carbon dots (graphene quantum dots, carbon nanodots, and polymer dots): current state and future perspective
TL;DR: The actual mechanism of photoluminescence (PL) of fluorescent carbon dots (CDs) is still an open debate among researchers as mentioned in this paper, and three types of fluorescent CDs were involved: graphene quantum dots (GQDs), carbon nanodots (CNDs), and polymer dots (PDs).
Journal ArticleDOI
Blue photoluminescence from chemically derived graphene oxide
Goki Eda,Yun-Yue Lin,Cecilia Mattevi,Cecilia Mattevi,Hisato Yamaguchi,Hsin-An Chen,I-Sheng Chen,Chun-Wei Chen,Manish Chhowalla +8 more
TL;DR: In this paper, blue photoluminescence from chemically derived graphene oxide Goki Eda, Yun-Yue Lin, Cecilia Mattevi, Hisato Yamaguchi, Hsin-An Chen, I-Sheng Chen, Chun-Wei Chen, and Manish Chhowalla
Journal ArticleDOI
Deep ultraviolet photoluminescence of water-soluble self-passivated graphene quantum dots
Libin Tang,Rongbin Ji,Xiangke Cao,Jingyu Lin,Hongxing Jiang,Li Xueming,Kar Seng Teng,Chi Man Luk,Songjun Zeng,Jianhua Hao,Shu Ping Lau +10 more
TL;DR: The G QDs are capable of converting blue light into white light when the GQDs are coated onto a blue light emitting diode and the photoluminescence quantum yields were determined to be 7-11%.
Journal ArticleDOI
An Electrochemical Avenue to Green-Luminescent Graphene Quantum Dots as Potential Electron-Acceptors for Photovoltaics
TL;DR: To facilitate the application of graphene in nanodevices and to effectively tune the bandgap of graphenes, a promising approach is to convert the 2D graphene sheets into 0D graphene quantum dots (GQDs).
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