scholarly journals Colloidal Quantum Dots and Metal Halide Perovskite Hybridization for Solar Cells Stability and Performance Enhancement

Author(s):  
Dong Yan ◽  
Mengxia Liu ◽  
Zhe Li ◽  
Bo Hou

Metal halide perovskites and colloidal quantum dots (QDs) are two emerging class of photoactive materials that has been attracted considerable attention for next-generation high-performance solution-processed solar cells. In particular, the...

2019 ◽  
Author(s):  
XIan-Fu Zhang ◽  
Baomin Xu

<p>Metal halide perovskite (MHP) materials are under extensive examination for various high performance optoelectronic applications, but their photosensitizing utilization for singlet oxygen generation has not been explored. Based on the observed characteristic NIR phosphorescence of singlet oxygen and the photosensitized decomposition of a specific singlet oxygen chemical trapper (diphenylisobenzofuran), we show herby that MAPbBr<sub>3</sub> quantum dots can significantly generate singlet oxygen with the quantum yield up to 0.34, which is the highest among nano semiconductor and nano metal material types of singlet oxygen photosensitizers. Further more, MAPbBr<sub>3</sub> quantum dots show good stability towards singlet oxygen. The mechanism of MHP as a singlet oxygen photosensitizer is also suggested to be due to triplet excitons. This finding expands new applications of MHPs in PDT, antiviral and antibacterial treatments, and pharmaceutical industry.</p>


2019 ◽  
Author(s):  
XIan-Fu Zhang ◽  
Baomin Xu

<p>Metal halide perovskite (MHP) materials are under extensive examination for various high performance optoelectronic applications, but their photosensitizing utilization for singlet oxygen generation has not been explored. Based on the observed characteristic NIR phosphorescence of singlet oxygen and the photosensitized decomposition of a specific singlet oxygen chemical trapper (diphenylisobenzofuran), we show herby that MAPbBr<sub>3</sub> quantum dots can significantly generate singlet oxygen with the quantum yield up to 0.34, which is the highest among nano semiconductor and nano metal material types of singlet oxygen photosensitizers. Further more, MAPbBr<sub>3</sub> quantum dots show good stability towards singlet oxygen. The mechanism of MHP as a singlet oxygen photosensitizer is also suggested to be due to triplet excitons. This finding expands new applications of MHPs in PDT, antiviral and antibacterial treatments, and pharmaceutical industry.</p>


2020 ◽  
Vol 8 (47) ◽  
pp. 16691-16715
Author(s):  
Yu Liu ◽  
Ping-An Chen ◽  
Yuanyuan Hu

Recent developments in fabrication strategies and device performance of field-effect transistors based on metal halide perovskites are reviewed.


2019 ◽  
Vol 55 (87) ◽  
pp. 13100-13103 ◽  
Author(s):  
Xian-Fu Zhang ◽  
Baomin Xu

Metal halide perovskite quantum dots effectively generate singlet oxygen with a quantum yield of 0.34, the highest among nano semiconductor/nano metal photosensitizers.


2016 ◽  
Vol 9 (4) ◽  
pp. 1130-1143 ◽  
Author(s):  
Ruili Wang ◽  
Yuequn Shang ◽  
Pongsakorn Kanjanaboos ◽  
Wenjia Zhou ◽  
Zhijun Ning ◽  
...  

Colloidal quantum dots (CQDs) are fast-improving materials for next-generation solution-processed optoelectronic devices such as solar cells, photocatalysis, light emitting diodes, and photodetectors.


Author(s):  
Hao Zhang ◽  
Yuhua Mao ◽  
Jie Xu ◽  
Shanshan Li ◽  
Fusheng Guo ◽  
...  

Rational modulating the physicochemical properties at perovskite-charge transporting layer interface is crucial for further performance improvement of metal halide perovskite solar cells (PSCs). Here, we present two methylthiophene terminated molecular...


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