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- W3097712416 startingPage "165944" @default.
- W3097712416 abstract "The semiconducting quantum dots based light emitting diode, QLED, have gained paramount interest from the scientific and technological point of views owing to their unique optical and photon management characteristics compared to the organic light emitting diode, OLED. Therefore, we report the syntheses of new semiconductor quantum dots based on Cd1-xHfxS nanocrystals. These nanocrystals QDs were prepared via 4,4’,N,N’-diphenylcarbazole assisted hydrothermal approach for QLED application potential. The TEM measurements inspected the opportunity of Hf-dopant tuning the size of CdS nanoparticles. The XRD inspected that the Hf-dopant caused an expansion of the CdS cubic crystals without alter its crystal phase. The optical absorption spectra disclosed that the HF-dopant caused red shift to the absorbance spectra and reduced the optical bandgap of CdS. The emission spectra declared that the HF-dopant enhanced the emission intensity of the CdS by 12 times and reduced the spectral width. The quantum yield of the CdS was improved from 17 % to 83 %, because the Hf-dopant behaved like activator fluorescent centers and acting as collector level for the photo-induced electrons of the Cds when subjected to light photons. The outstanding optical performance of the Cd1-xHfxS QD nanocrystals force them to be used for QLED applications." @default.
- W3097712416 created "2020-11-09" @default.
- W3097712416 creator A5003692310 @default.
- W3097712416 creator A5060179662 @default.
- W3097712416 date "2021-01-01" @default.
- W3097712416 modified "2023-09-23" @default.
- W3097712416 title "The optical absorption and luminescent emission properties of Cd1-xHfxS QD nanocrystals prepared via 4,4’,N,N’-diphenylcarbazole assisted hydrothermal approach for QLED application potential" @default.
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