Focusing on luminescent graphene quantum dots: current status and future perspectives
To obtain graphene-based fluorescent materials, one of the effective approaches is to convert one-dimensional (1D) graphene to 0D graphene quantum dots (GQDs), yielding an emerging nanolight with extraordinary properties due to their remarkable quantum confinement and edge effects. In this review, t...
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| Published in | Nanoscale Vol. 5; no. 1; pp. 415 - 439 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
England
21.05.2013
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| Subjects | |
| Online Access | Get full text |
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| Summary: | To obtain graphene-based fluorescent materials, one of the effective approaches is to convert one-dimensional (1D) graphene to 0D graphene quantum dots (GQDs), yielding an emerging nanolight with extraordinary properties due to their remarkable quantum confinement and edge effects. In this review, the state-of-the-art knowledge of GQDs is presented. The synthetic methods were summarized, with emphasis on the top-down routes which possess the advantages of abundant raw materials, large scale production and simple operation. Optical properties of GQDs are also systematically discussed ranging from the mechanism, the influencing factors to the optical tunability. The current applications are also reviewed, followed by an outlook on their future and potential development, involving the effective synthetic methods, systematic photoluminescent mechanism, bandgap engineering, in addition to the potential applications in bioimaging, sensors,
etc.
Recent progress on graphene quantum dots is presented, mainly focusing on the top-down synthetic routes, optical properties and applications. |
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| Bibliography: | Jianwei Zhao received his BS degree in 1996 (Peking University), MS in 1999 (Changchun Institute of Applied Chemistry), and PhD in 2003 (Hokkaido University). He is now a full-professor in the School of Chemistry and Chemical Engineering, Nanjing University. His research interests focus on the theoretical and experimental investigation including electrochemical engineering, theoretical simulation of nano-fabrication for Micro (Nano)-Electro-Mechanical Systems, and electron transfer through a functionalized molecule. Jun-Jie Zhu received his BS (1984) and PhD (1993) degrees from the Department of Chemistry, Nanjing University, China. Then, he began his academic career at School of Chemistry and Chemical Engineering, Nanjing University. He entered Bar-Ilan University, Israel as a postdoctoral researcher from 1998 to 1999. Since 2001, he has been a full professor at Nanjing University. His main research activities focus on preparation and application of functional nanomaterials, and fabrication of electrochemical and electrochemiluminescence biosensors. Guohai Yang received his BS degree from Lanzhou University in China in 2008. Currently he is pursuing his PhD degree under the supervision of Prof. Jun-Jie Zhu at Nanjing University, China. His research interests mainly focus on the development of graphene-based composites for electrochemical applications. Gehui Wu received his BS degree from Xiamen University in China in 2011. He is currently a master student with Professor Jun-Jie Zhu and Professor Jianwei Zhao at Nanjing University, China. His research involves graphene quantum dots and multifunctional nanocomposites. Juan Peng received her PhD degree with Professor Jun-Jie Zhu in Nanjing University in 2012. During her PhD candidate, she went to Rice University as a visiting student with Professor Pulickel Ajayan for one year. Currently, she is a lecturer in the School of Chemistry and Chemical Engineering at Ningxia University. Her research interests involve preparation of functional nanomaterials and their application in bioanalysis. Lingling Li received her PhD degree with Prof. Jun-Jie Zhu and Prof. Jian-Rong Zhang in chemistry from the School of Chemistry and Chemical Engineering, Nanjing University in 2011. Currently, she is a postdoctoral researcher at Nanjing University. Her research interests focus on preparation of novel quantum dots and their applications in electrochemiluminescence studies. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1 |
| ISSN: | 2040-3364 2040-3372 |
| DOI: | 10.1039/c3nr33849e |