Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.
XING ZHANG1,2,* , MING XU1,* , CHUNMAN YU2, HAO LU2, YAOTIAN YU2, XIAONAN XU1
High quality ZnSe/ZnS core/shell nanocrystals were synthesized by a convenient aq ueous phase method, achieving epitaxial growth at a very low temperature of 90℃. The nature of the ZnS shells grown on the surfaces of ZnSe core nanocrystals (average size, 4~5 nm) was determined by X ray diffraction (XRD), UV Vis spectrophotometry, photol uminescence (PL) measurements, high resolution transmission electron microscopy (HR TEM), and Fourier transform infrared spectroscopy (FT IR). The PL intensity of ZnSe/ZnS quantum dots (QDs) first increased and then decreased with increasing pH value. The strongest PL intensity occurs at the pH value of ~10.5. The strongest PL peak was centered at 400 nm (FWHM ~22 nm). The mechanism of the observed optical properties is discussed..
Low temperatu re pH, Quantum dots, Aqueous phase synthesis, Core-shell structure.
XING ZHANG, MING XU, CHUNMAN YU, HAO LU, YAOTIAN YU, XIAONAN XU, Low temperature aqueous phase synthesis and optical property study of ZnSe/ZnS core/shell quantum dots, Optoelectronics and Advanced Materials - Rapid Communications, 9, 7-8, July-August 2015, pp.924-929 (2015).
Submitted at: Feb. 15, 2015
Accepted at: June 24, 2015
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
Active accounts were imported to the new platform and assigned a random password by default. In order to access your account you need to access the login page and go through the Lost Password dialog (involves the system sending you an email with instructions) in order to reset your password. This step is necessary as passwords are kept in hashed form and the new platform uses modern hashing algorithms incompatible with the previous ones.