Quantum dot-induced phase stabilization of α-CsPbI3 perovskite for high-efficiency photovoltaics.
Abhishek Swarnkar,Abhishek Swarnkar,Ashley R. Marshall,Ashley R. Marshall,Erin M. Sanehira,Erin M. Sanehira,Boris D. Chernomordik,David T. Moore,Jeffrey A. Christians,Tamoghna Chakrabarti,Joseph M. Luther +10 more
TLDR
N nanoscale phase stabilization of CsPbI3 quantum dots (QDs) to low temperatures that can be used as the active component of efficient optoelectronic devices and describe the formation of α-CsP bI3 QD films that are phase-stable for months in ambient air.Abstract:
We show nanoscale phase stabilization of CsPbI 3 quantum dots (QDs) to low temperatures that can be used as the active component of efficient optoelectronic devices. CsPbI 3 is an all-inorganic analog to the hybrid organic cation halide perovskites, but the cubic phase of bulk CsPbI 3 (α-CsPbI 3 )—the variant with desirable band gap—is only stable at high temperatures. We describe the formation of α-CsPbI 3 QD films that are phase-stable for months in ambient air. The films exhibit long-range electronic transport and were used to fabricate colloidal perovskite QD photovoltaic cells with an open-circuit voltage of 1.23 volts and efficiency of 10.77%. These devices also function as light-emitting diodes with low turn-on voltage and tunable emission.read more
Citations
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Halide Perovskite Photovoltaics: Background, Status, and Future Prospects
TL;DR: The fundamentals, recent research progress, present status, and views on future prospects of perovskite-based photovoltaics, with discussions focused on strategies to improve both intrinsic and extrinsic (environmental) stabilities of high-efficiency devices are described.
Journal ArticleDOI
Properties and potential optoelectronic applications of lead halide perovskite nanocrystals
Maksym V. Kovalenko,Maksym V. Kovalenko,Loredana Protesescu,Loredana Protesescu,Maryna I. Bodnarchuk +4 more
TL;DR: The prospects of LHP NCs for optoelectronic applications such as in television displays, light-emitting devices, and solar cells are surveyed, emphasizing the practical hurdles that remain to be overcome.
Journal ArticleDOI
Genesis, challenges and opportunities for colloidal lead halide perovskite nanocrystals
Quinten A. Akkerman,Quinten A. Akkerman,Gabriele Rainò,Gabriele Rainò,Maksym V. Kovalenko,Maksym V. Kovalenko,Liberato Manna,Liberato Manna +7 more
TL;DR: Lead-halide perovskites have entered the family of colloidal nanocrystals, showing excellent optical properties and easy synthesizability, and insight is provided into their chemical versatility, stability challenges and use in optoelectronics.
Journal ArticleDOI
High-Efficiency Perovskite Solar Cells.
TL;DR: This review summarizes the fundamentals behind the optoelectronic properties of perovskite materials, as well as the important approaches to fabricating high-efficiency perovSKite solar cells, and possible next-generation strategies for enhancing the PCE over the Shockley-Queisser limit are discussed.
Journal ArticleDOI
All-inorganic perovskite nanocrystal scintillators
Qiushui Chen,Jing Wu,Xiangyu Ou,Bolong Huang,Jawaher Almutlaq,Ayan A. Zhumekenov,Xinwei Guan,Sanyang Han,Liangliang Liang,Zhigao Yi,Juan Li,Xiaoji Xie,Yu Wang,Ying Li,Dianyuan Fan,Daniel Boon Loong Teh,Angelo H. All,Angelo H. All,Omar F. Mohammed,Osman M. Bakr,Tom Wu,Marco Bettinelli,Huanghao Yang,Wei Huang,Wei Huang,Wei Huang,Xiaogang Liu,Xiaogang Liu +27 more
TL;DR: All-inorganic perovskite nanocrystals containing caesium and lead provide low-cost, flexible and solution-processable scintillators that are highly sensitive to X-ray irradiation and emit radioluminescence that is colour-tunable across the visible spectrum.
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