Real-time monitoring of the UV-induced formation of quantum dots on a milliliter, microliter, and nanoliter scale
作者: Lukas NejdlJan ZitkaFilip MravecVedran MilosavljevicOndrej ZitkaPavel KopelVojtech AdamMarketa Vaculovicova
作者单位: 1Mendel University in Brno
2Brno University of Technology
刊名: Microchimica Acta, 2017, Vol.184 (5), pp.1489-1497
来源数据库: Springer Nature Journal
DOI: 10.1007/s00604-017-2149-8
关键词: NanocrystalCapillary electrophoresisIrradiationFluorescence
英文摘要: The authors report on a systematic study on the low-cost, low-temperature, and fast synthesis of water soluble quantum dots (QDs) stabilized by mercaptosuccinic acid by UV irradiation. The effects of UV irradiation (at 254 nm and 250 nm) and temperature on the precursors (Cd:Se, Cd:Te, Cd, Zn:S, Zn:Se and Zn) are described. Best results are achieved with a mixture of precursors containing cadmium, selenium and MSA where a 10-min irradiation with 254-nm light gives CdSe QDs with a quantum yield of 13.5%. The authors also describe the preparation and monitoring of the formation of QDs in sub-mg, sub-μg and sub-ng quantities, the smallest concentration being 258 pg in volume of 4 nL. The growth of the QDs can be monitored in real time by absorption, fluorescence and dynamic light scattering....
原始语种摘要: The authors report on a systematic study on the low-cost, low-temperature, and fast synthesis of water soluble quantum dots (QDs) stabilized by mercaptosuccinic acid by UV irradiation. The effects of UV irradiation (at 254 nm and 250 nm) and temperature on the precursors (Cd:Se, Cd:Te, Cd, Zn:S, Zn:Se and Zn) are described. Best results are achieved with a mixture of precursors containing cadmium, selenium and MSA where a 10-min irradiation with 254-nm light gives CdSe QDs with a quantum yield of 13.5%. The authors also describe the preparation and monitoring of the formation of QDs in sub-mg, sub-μg and sub-ng quantities, the smallest concentration being 258 pg in volume of 4 nL. The growth of the QDs can be monitored in real time by absorption, fluorescence and dynamic light scattering....
全文获取路径: Springer Nature  (合作)
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来源刊物:
影响因子:3.434 (2012)

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关键词翻译
关键词翻译
  • microliter 微升
  • formation 建造
  • quantum 量子
  • monitoring 监视
  • induced 感应的
  • controllable 可控制的
  • stabilized 稳定的
  • light 
  • preparation 预备
  • irradiation 照射