Synthesis of Highly Monodisperse CdSe Quantum Dots and Size Dependency of Optical Properties
Yükleniyor...
Dosyalar
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Gazi Univ
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Semiconductor quantum dots have wide application areas as they have unique electrical and optical properties. In recent years, CdSe quantum dots are one of the most preferred nanomaterials. Highly monodisperse zinc blend CdSe quantum dots were synthesized using hot injection method. The structure and optical properties of the samples were determined by UV-Vis, photoluminescence, XRD and TEM methods. As a result, the difference between 2S-1P absorption transitions did not change with particle size. However, the difference between 1S-2S and 1S-1P transitions were found to be inversely proportional to particle size. The FWHM value of the photoluminescence spectrum of the smallest sample has decreased to 25 mm and Stokes shifts were observed to be 0.06 eV.
Açıklama
Anahtar Kelimeler
CdSe, quantum dot, hot injection, optical absorption, photoluminescence, nanotechnology, Semiconductor Clusters, Photodetectors, Cdte
Kaynak
Journal Of Polytechnic-Politeknik Dergisi
WoS Q DeÄŸeri
N/A
Scopus Q DeÄŸeri
Cilt
24
Sayı
1
