Main > Chinese Optics Letters >  Volume 18 >  Issue 7 >  Page 071601 > Article
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Accepted: Apr. 16, 2020

Posted: Jun. 11, 2020

Published Online: Jun. 12, 2020

The Author Email: Bobo Yang (boboyang@sit.edu.cn), Jun Zou (zoujun@sit.edu.cn)

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Peiyuan Cao, Bobo Yang, Yanrong Cao, Fei Zheng, Jun Zou. Room-temperature synthesis of cyan CsPb(Cl/Br)3/SiO2 nanospheres with LiCl-H2O solution[J]. Chinese Optics Letters, 2020, 18(7): 071601

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Fig. 1. Synthesizing schematic of the silica-coated $CsPb(Cl/Br)3$ QDs.

Fig. 2. TEM images of $QDs@SiO2$ at different resolutions. Inset of (a) is the size distributions of the $QDs@SiO2$ nanospheres. Inset of (c) is the corresponding SAED image.

Fig. 3. (a) Normalized PL spectra and (b) original PL intensity spectra of the five samples when the amount of LiCl was 0/60/100/140/180 μL. (c) The pictures that recorded the compound powder (from left to right: 0 to 180 μL) exposed under the white fluorescent lamp (top row) and the UV light (bottom row), respectively.

Fig. 4. (a) XRD patterns of the samples fabricated with different amounts of $LiCl-H2O$. (b) Crystal structure of cubic $CsPbBr3$.

Fig. 5. (a) PLE spectra of the $QD/SiO2$ composition and (b) FTIR spectra of the $SiO2$ and $CsPb(Cl/Br)3@SiO2$ compounds.
Fig. 6. Schematic of the CIE map (from top to bottom: 0/60/100/140/180 μL of $LiCl-H2O$).