Journal ArticleDOI
Temperature-dependent color-tunable luminescence in CsPbBr3: Dy3+ glass ceramic
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TLDR
In this paper, CsPbBr3 perovskite quantum dots (PQDs) were prepared by the melt-quenching method, simultaneously doping with Dy3+ in borosilicate glass, aiming to explore the thermochromic property.Abstract:
Available tunability of energy up-conversion in rare-earth (RE) ion doped nanomaterials has drawn great attention recently in the field of high-sensitive optical temperature transducer, but the intrinsically sharp fluorescence thermal-quenching and low energy transfer efficiency certainly limit further development. In this work, CsPbBr3 perovskite quantum dots (PQDs) was prepared by the melt-quenching method, simultaneously doping with Dy3+ in borosilicate glass, aiming to explore the thermochromic property. The novel phenomenon herein is that emerged bimodal emissions come from a luminescent active center of CsPbBr3 and a temperature-passivated RE Dy3+ ion, synergistically contributed to the remarkable relative sensitivities (2.631% K − 1). Interestingly, temperature-depended polychromatic luminescence among the PQDs embedded glass has been fully demonstrated as pumped by 365 nm ultraviolet light. Precise control of luminescent centers and color gamut is expected to design a temperature-sensitive material based on PQDs for promising optical applications.read more
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CsPbX3 (X= Cl, Br, I) perovskite quantum dots embedded glasses: recent advances and perspectives
TL;DR: The glass containing CsPbX 3 (X = Cl, Br, I) perovskite quantum dots has a wide range of applications in the fields of optoelectronic devices, photocatalysis, and sensors due to their tunable emission, high efficiency luminescence, narrow-band emission, and high stability as mentioned in this paper .
Journal ArticleDOI
Improving the Luminescence, Hardness and Thermal Stability of Silicate Glass for White LED by Precipitation of Ba2YNbO6 Crystals
TL;DR: In this paper , Dy 3+ -Eu 3+ doped precursor glass and transparent glass-ceramics containing Ba 2 YNbO 6 crystal phase have been designed by the melting crystallization method.
Journal ArticleDOI
Polychromatic tunable luminescence of Eu3+ doped CsPbBr3 quantum dot glass ceramic induced by mechanical crystallization
TL;DR: In this paper , the Eu3+ doped CsPbBr3 QDs phosphate glass has been successfully prepared by mechanical crystallization, which not only has tunability and favorable sensitivity but also provides an effective way for the preparation of QDs.
Journal ArticleDOI
Effect of ZnO on the crystallization and photoluminescence of CsPbI 3 perovskite quantum dots in borosilicate glasses
Zhousu Xu,Tao Chen,J. I. A. Z. H. I. Xia,T.-P. Martin Man,Guojun Zheng,Jinhua Yan,Xiaofeng Liu,Hong Zhang,Jianrong Qiu +8 more
TL;DR: In this article , a perovskite quantum dots (QDs) doped borosilicate glass was prepared by the process of melt-quenching and subsequent annealing.
Journal ArticleDOI
Energy transfer mechanism and new ratiometric thermometry strategy by the blue and yellow emissions of Dy
Hongyuan Zhang,Baosheng Cao,Zhichao Liao,Yiwei Liu Huali Yang,Jin Zhang,Leipeng Li,Yan Cong,Yangyang He,Zhenyu Zhang,Zhiqing Feng,Bin Dong +10 more
TL;DR: In this paper , the energy transfer mechanism between Dy 3+ ions as well as a new optical ratiometric thermometry strategy in dy 3+ doped CaWO 4 :Dy phosphors were investigated.
References
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Lanthanide-based thermometers: At the cutting-edge of luminescence thermometry
Journal ArticleDOI
A Novel Optical Thermometry Strategy Based on Diverse Thermal Response from Two Intervalence Charge Transfer States
TL;DR: In this paper, a novel thermometry strategy based on the diversity in thermal quenching behavior of two intervalence charge transfer (IVCT) states in oxide crystals is proposed, which provides a promising route to design self-referencing optical temperature sensing material with superior temperature sensitivity and signal discriminability.
Journal ArticleDOI
Instantaneous ballistic velocity of suspended Brownian nanocrystals measured by upconversion nanothermometry
Carlos D. S. Brites,Xiaoji Xie,Mengistie L. Debasu,Xian Qin,Runfeng Chen,Wei Huang,Wei Huang,João Rocha,Xiaogang Liu,Xiaogang Liu,Luís D. Carlos +10 more
TL;DR: The population of excited electronic states in NaYF4:Yb/Er nanocrystals at thermal equilibrium can be used for temperature mapping of the nanofluid with great thermal sensitivity and a high spatial resolution, and a technique based on upconversion nanothermometry is developed.
Journal ArticleDOI
Perovskite Quantum Dots Glasses Based Backlit Displays
Jidong Lin,Jidong Lin,Yixuan Lu,Xiaoyan Li,Feng Huang,Changbin Yang,Menglong Liu,Naizhong Jiang,Daqin Chen,Daqin Chen +9 more
TL;DR: Perovskite quantum dots (PeQDs) have been regarded as an alternative to traditional phosphor color converters in the backlit display to improve the color gamut and rendition of LCD as discussed by the authors.
Journal ArticleDOI
Flexible and efficient perovskite quantum dot solar cells via hybrid interfacial architecture.
Long Hu,Long Hu,Long Hu,Qian Zhao,Qian Zhao,Shujuan Huang,Jianghui Zheng,Jianghui Zheng,Xinwei Guan,Robert Patterson,Jiyun Kim,Lei Shi,Chun-Ho Lin,Qi Lei,Dewei Chu,Wan Tao,Soshan Cheong,Richard D. Tilley,Anita Ho-Baillie,Anita Ho-Baillie,Joseph M. Luther,Jianyu Yuan,Tom Wu +22 more
TL;DR: In this paper, a hybrid interfacial architecture consisting of CsPbI3 quantum dot/PCBM heterojunction was developed for efficient charge transfer and mechanical adhesion.