‘Advances in Perovskite Quantum Dots and Their Devices’ is a new open Special Issue of Materials in which original and review papers on the novel findings of synthesis, deep understandings of properties, and advanced potentials of applications in perovskite quantum dots are reported and published.
Owing to their prominent properties including tunable bandgaps, strong absorption, efficient emission, and long carrier diffusion lengths, perovskites composed of metal-halide have rapidly emerged as materials with great potential in the last decade. Thus, their wide applications in solar cells, light-emitting diodes, lasers, photodetectors, X-ray scintillators, and catalysis have attracted the attention of researchers and captivated the broad scientific community.
Furthermore, with the adaption of bulk perovskites to nanoscale ones, quantum dots exhibit a vast size-dependent optoelectronic performance, suggesting promising commercialization ability [1]. For instance, the tunable emissive wavelengths, narrow luminescence and high photoluminescent quantum yield up to ~100%—which are attributed to quantum confined effect and high exciton binding energies—make them excellent candidates in applications for displays with high color purity and broad color gamut, as well as illumination with controllable color temperatures. In addition, perovskite quantum dots are regarded as state-of-the-art materials for efficient solar cells and photodetectors because of their strong optical absorption, easy solution processability, and long carrier diffusion lengths [2]. Thus, it is of great significance to highlight and discuss the advances in the field of perovskite quantum dots.
The research interests of this Special Issue include, but are not limited to, the following: the exploration of preparation methods; the scientific understanding of structures and optoelectronic mechanisms; the optimization of properties; wide-ranging applications; and the fabrication and performance enhancement of devices based on perovskite quantum dots.
Funding
This work was supported by the National Natural Science Foundation of China (NSFC) (Grant Nos. 11974063, 61904023).
Conflicts of Interest
The authors declare no conflict of interest.
References
- Garcia de Arquer, F.P.; Talapin, D.V.; Klimov, V.I.; Arakawa, Y.; Bayer, M.; Sargent, E.H. Semiconductor quantum dots: Technological progress and future challenges. Science 2021, 373, eaaz8541. [Google Scholar] [CrossRef] [PubMed]
- Dey, A.; Ye, J.; De, A.; Debroye, E.; Ha, S.K.; Bladt, E.; Kshirsagar, A.S.; Wang, Z.; Yin, J.; Wang, Y.; et al. State of the Art and Prospects for Halide Perovskite Nanocrystals. ACS Nano 2021, 15, 10775. [Google Scholar] [CrossRef] [PubMed]
Short Biography of Authors
Shuangyi Zhao obtained his B.S. degree at Shandong University in 2013 and Ph.D. degree in the State Key Lab of Silicon Materials at Zhejiang University in 2018. After obtained his Ph.D., degree, he joined in College of Optoelectronic Engineering at Chongqing University. His research concerns preparation of semiconductor quantum dots and their optoelectronic devices, such as solar cells, LEDs and photosensors. To date, he has published over 20 peer-reviewed articles.
Zhigang Zang received his Ph.D. degree from Kyushu University in 2011. He joined School of Optoelectronic Engineering, Chongqing University as a professor since 2014. His research interests mainly focus on the synthesis of II–VI, III–V semiconductor materials and their applications in solar cells and light emitting diodes.
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