Improved photoluminescence and monodisperse performance of colloidal CdTe quantum dots with Cannula method
Yükleniyor...
Dosyalar
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Korean Institute Chemical Engineers
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Colloidal quantum dots are nano semiconductor materials that have been found in many applications, producing multiple exciton generation, unique optical and electronic properties, adjustable in size and bandwidth. Synthesized QDs are expected to exhibit high photoluminescence quantum yield and monodisperse properties according to their application area. Cannula method was adapted together with the organometallic synthesis method for the first time in the literature to increase the photoluminescence quantum yield of organometallic CdTe QD and minimize the full width at half maximum value of the photoluminescence band. Injection of precursors by the Cannula method is much faster than the injecting with the conventional method of using a glass syringe, which limits the size distribution in the solution during synthesis. In addition, the fastest injection method using Cannula method yields the shortest full width half maximum value of 27.20 nm for CdTe QDs in the literature. The photoluminescence quantum yield value of the CdTe QDs synthesized by the classical method was 8.12 +/- 2.1%, while the photoluminescence quantum yield of the CdTe QDs synthesized by the Cannula method was increased to 25.66 +/- 2.1%.
Açıklama
WOS: 000463741200015
Anahtar Kelimeler
Quantum Dots, CdTe, PLQY, FWHM, Cannula
Kaynak
Korean Journal Of Chemical Engineering
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
36
Sayı
4
