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2018 Volume 27 Issue 12
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Zhixing Gan, Weiping Zhou, Ming Meng. 2018: Increase of photoluminescence blinking frequency of 3C–SiC nanocrystals with excitation power, Chinese Physics B, 27(12): 155-160. doi: 10.1088/1674-1056/27/12/127804
Citation: Zhixing Gan, Weiping Zhou, Ming Meng. 2018: Increase of photoluminescence blinking frequency of 3C–SiC nanocrystals with excitation power, Chinese Physics B, 27(12): 155-160. doi: 10.1088/1674-1056/27/12/127804
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Increase of photoluminescence blinking frequency of 3C–SiC nanocrystals with excitation power

  • Center for Quantum Transport and Thermal Energy Science, Key Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China

  • School of Science, Nanjing University of Science and Technology, Nanjing 210094, China

  • School of Physics and Telecommunication Engineering, Zhoukou Normal University, Zhoukou 466001, China

  • Available Online: 01/01/2018
  • Fund Project: the National Natural Science Foundation of China(Grant . 11604155, 11604147, and 51702379)%China Postdoctoral Science Foun-dation(Grant . 2016M600428 and 2017T100386)%the Planned Projects for Postdoctoral Research Funds of China(Grant 1601023A)
  • Super-resolution optical fluctuation imaging is dependent on the blinking frequency of fluorophores. Consequently, improvement of the photoluminescence (PL) blink frequency is important. This is achieved for 3C–SiC nanocrystals (NCs) by simply increasing the excitation power. Using an excitation of 488 nm with powers of 5 μW to 50 μW, individual 3C–SiC NC always exhibits PL blinking with a short on-state sojourn time (<0.1 s). A fast Fourier transform method is exploited to determine the PL switching frequency. It is found that the frequency of the bright state increases from 2 Hz to 20 Hz as the excitation power increases from 5 μW to 50 μW, which is explained by the Auger photonionization model.
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Increase of photoluminescence blinking frequency of 3C–SiC nanocrystals with excitation power

  • Available Online: 01/01/2018

Abstract: Super-resolution optical fluctuation imaging is dependent on the blinking frequency of fluorophores. Consequently, improvement of the photoluminescence (PL) blink frequency is important. This is achieved for 3C–SiC nanocrystals (NCs) by simply increasing the excitation power. Using an excitation of 488 nm with powers of 5 μW to 50 μW, individual 3C–SiC NC always exhibits PL blinking with a short on-state sojourn time (<0.1 s). A fast Fourier transform method is exploited to determine the PL switching frequency. It is found that the frequency of the bright state increases from 2 Hz to 20 Hz as the excitation power increases from 5 μW to 50 μW, which is explained by the Auger photonionization model.

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