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Su LX, Lou Q, Jiao Z, Shan CX. Plant Cell Imaging Based on Nanodiamonds with Excitation-Dependent Fluorescence. NANOSCALE RESEARCH LETTERS 2016; 11:425. [PMID: 27664016 PMCID: PMC5035291 DOI: 10.1186/s11671-016-1641-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 09/19/2016] [Indexed: 05/07/2023]
Abstract
Despite extensive work on fluorescence behavior stemming from color centers of diamond, reports on the excitation-dependent fluorescence of nanodiamonds (NDs) with a large-scale redshift from 400 to 620 nm under different excitation wavelengths are so far much fewer, especially in biological applications. The fluorescence can be attributed to the combined effects of the fraction of sp(2)-hybridized carbon atoms among the surface of the fine diamond nanoparticles and the defect energy trapping states on the surface of the diamond. The excitation-dependent fluorescent NDs have been applied in plant cell imaging for the first time. The results reported in this paper may provide a promising route to multiple-color bioimaging using NDs.
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Affiliation(s)
- Li-Xia Su
- School of Physics and Engineering, Zhengzhou University, No.75 Daxue Road, Zhengzhou, 450052 China
| | - Qing Lou
- School of Physics and Engineering, Zhengzhou University, No.75 Daxue Road, Zhengzhou, 450052 China
| | - Zhen Jiao
- School of Physics and Engineering, Zhengzhou University, No.75 Daxue Road, Zhengzhou, 450052 China
| | - Chong-Xin Shan
- School of Physics and Engineering, Zhengzhou University, No.75 Daxue Road, Zhengzhou, 450052 China
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Cui T, Lv R, Huang ZH, Zhu H, Jia Y, Chen S, Wang K, Wu D, Kang F. Low-temperature synthesis of multilayer graphene/amorphous carbon hybrid films and their potential application in solar cells. NANOSCALE RESEARCH LETTERS 2012; 7:453. [PMID: 22883426 PMCID: PMC3479036 DOI: 10.1186/1556-276x-7-453] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 07/28/2012] [Indexed: 05/14/2023]
Abstract
The effect of reaction temperature on the synthesis of graphitic thin film on nickel substrate was investigated in the range of 400°C to 1,000°C. Amorphous carbon (a-C) film was obtained at 400°C on nickel foils by chemical vapor deposition; hybrid films of multilayer graphene (MLG) and a-C were synthesized at a temperature of 600°C, while MLG was obtained at temperatures in excess of 800°C. Schottky-junction solar cell devices prepared using films produced at 400°C, 600°C, 800°C, and 1,000°C coupled with n-type Si demonstrate power conversion efficiencies of 0.003%, 0.256%, 0.391%, and 0.586%, respectively. A HNO3 treatment has further improved the efficiencies of the corresponding devices to 0.004%, 1.080%, 0.800%, and 0.820%, respectively. These films are promising materials for application in low-cost and simple carbon-based solar cells.
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Affiliation(s)
- Tongxiang Cui
- Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Ruitao Lv
- Department of Physics, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Zheng-Hong Huang
- Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Hongwei Zhu
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology of the Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Center for Nano and Micro Mechanics, Tsinghua University, Beijing, 100084, China
| | - Yi Jia
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong Province, 518055, China
| | - Shuxiao Chen
- Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Kunlin Wang
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology of the Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Dehai Wu
- Key Laboratory for Advanced Manufacturing by Materials Processing Technology of the Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Feiyu Kang
- Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
- Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong Province, 518055, China
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