Optical property and thermal stability studies on Cs3Bi2I9 perovskite quantum dots for photovoltaic application

2020 ◽  
Author(s):  
V. Kamalarasan ◽  
B. Santhosh Kumar ◽  
T. Mukilraj ◽  
C. Venkateswaran
Keyword(s):  
Thermal Stability ◽  
Quantum Dots ◽  
Optical Property ◽  
Stability Studies ◽  
Photovoltaic Application ◽  
Perovskite Quantum Dots

scholarly journals Thermal Stability of CsPbBr3 Perovskite Quantum Dots Assembled with SBA-15

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 953
Author(s):  
Hongyu Chen ◽  
Yunfei Wang ◽  
Jianing Wang ◽  
Wenyan Liu
Keyword(s):  
Thermal Stability ◽  
Quantum Dots ◽  
Red Shift ◽  
Heating And Cooling ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Pl Intensity ◽  
The Stability ◽  
Increasing Temperature ◽  
Thermal Stability Of

Nowadays, the excellent performance of metal halide perovskite quantum dots (PQDs) has been demonstrated, but the stability is still a perplexing issue. In this paper, the CsPbBr3 QDs were assembled into SBA-15 for the first time. The thermal stability and photoluminescence (PL) intensity of SBA-15@CsPbBr3 QDs were improved. The PL spectra of pure CsPbBr3 QDs have red-shift (~6 nm) with the increasing temperature. However, that of SBA-15@CsPbBr3 QDs have almost no red-shift. The PL intensity of SBA-15@CsPbBr3 QDs decreased slightly after heating and cooling for several times. By comparison, the PL intensity of pure CsPbBr3 QDs decreased more significantly. The experimental results showed that SBA-15 played a significant role in improving the thermal stability of PQDs, which will have an excellent potential for the application of PQDs in the future.

Surface Treatment of Mixed-Halide CsPb(BrxI1-x)3 Perovskite Quantum Dots for Thermal Stability Enhancement

2021 ◽  
pp. 111622
Author(s):  
Kim Anh Huynh ◽  
Tuan Van Nguyen ◽  
Sa-Rang Bae ◽  
Huu Ha Do ◽  
Do Yeon Heo ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Quantum Dots ◽  
Surface Treatment ◽  
Perovskite Quantum Dots ◽  
Stability Enhancement

Formation of highly luminescent cesium bismuth halide perovskite quantum dots tuned by anion exchange

2018 ◽  
Vol 54 (30) ◽  
pp. 3779-3782 ◽  
Author(s):  
Yongbing Lou ◽  
Mengying Fang ◽  
Jinxi Chen ◽  
Yixin Zhao
Keyword(s):  
Thermal Stability ◽  
Quantum Dots ◽  
Exchange Reaction ◽  
Anion Exchange ◽  
Wavelength Range ◽  
Quantum Yields ◽  
Excellent Thermal Stability ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Anion Exchange Reaction

Cs3Bi2Br9 quantum dots, with excellent thermal stability and photoluminescence quantum yields of up to 22%, have been prepared. A PL wavelength range from 380 to 526 nm could be achieved through a fast reversible anion exchange reaction.

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