Linear and nonlinear optical characteristics of CsPbBr3 perovskite quantum dots-doped borosilicate glasses

Xu, Zhousu; Chen, Tao; Zhang, Duoduo; Zheng, Guojun; Wu, Jianhong; Yan, Jun; Liu, Xiaofeng; Qiu, Jianrong

doi:10.1016/j.jeurceramsoc.2020.09.007

Cited by 34 publications

(13 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Selected area electron diffraction (SAED) also confirms the crystalline phase of the synthesized NCs in addition to some defects that appear in the form of faint rings (inset of Figure d). The appearance of the (200) crystalline plane in SAED also confirms the monoclinic crystalline phase of CsPbBr 3 NCs . These results are in good agreement with the findings that are predicted by XRD.…”

Section: Resultssupporting

confidence: 89%

See 1 more Smart Citation

Photon-Induced Electron Transfer in Ligand-Stabilized Monoclinic CsPbBr₃ and Alanine-Functionalized Graphene Heterostructures

et al. 2022

View full text Add to dashboard Cite

In the field of catalysis and energy applications, heterostructures of halide perovskite nanocrystals (NCs) and functionalized graphene are emerging as promising materials. In such heterostructures, it is critical to gain insights into the knowledge that governs the charge and energy transfer dynamics between the components of the heterostructures because it directly affects the efficiency of devices. In this work, we present heterostructures that consist of mercaptoacetic acid (MAA)-functionalized CsPbBr 3 NCs and alanine-functionalized graphene. The surface functionalization of CsPbBr 3 NCs and graphene enables an effective attachment of the NCs and graphene. The use of MAA as a functionalizing ligand not only passivates the surface of NCs but also provides the possibility of tuning the size of NCs and further coupling with alanine-functionalized graphene. Varying the amount of MAA allows us to synthesize the brightest CsPbBr 3 NCs with an absolute photoluminescence quantum yield (PLQY) of 49% and an emission spectral width of 25 nm. By combining alanine-functionalized graphene, the photoluminescence (PL) quenching of the NCs is observed. The photoexcited electron transfer from NCs to alanine-functionalized graphene is responsible for the occurrence of PL quenching that is advocated by time-resolved photoluminescence (TRPL) studies and cyclic voltammetry (CV) analysis. Our work provides a method to control the energetics and analyze the types of charge transfer in functionalized perovskite NCs and graphene heterostructures and motivates further research about the basic knowledge of charge transfer in functionalized donor−acceptor heterostructures.

show abstract

Section: Resultssupporting

confidence: 89%

“…The appearance of the (200) crystalline plane in SAED also confirms the monoclinic crystalline phase of CsPbBr 3 NCs. 35 These results are in good agreement with the findings that are predicted by XRD.…”

Section: Resultssupporting

confidence: 89%

Photon-Induced Electron Transfer in Ligand-Stabilized Monoclinic CsPbBr₃ and Alanine-Functionalized Graphene Heterostructures

et al. 2022

View full text Add to dashboard Cite

show abstract

“…For perovskite QDs, the change in PL lifetime could be mainly associated with a change in defect concentration, that is perovskite crystal quality. The deterioration in crystal quality can lead to an increase in non‐radiative transition rate and a decrease in PL lifetime as defects provide additional relaxation pathways for excited QDs 37,38 . According to the XRD result, it is evident that the CsPbI 3 perovskite QD quality increases with the rise of ZnO concentration or heat treatment temperature, which leads to the increase in PL lifetime.…”

Section: Resultsmentioning

confidence: 99%

Effect of ZnO on the crystallization and photoluminescence of CsPbI₃ perovskite quantum dots in borosilicate glasses

Chen

Xia

et al. 2022

J Am Ceram Soc

Self Cite

View full text Add to dashboard Cite

CsPbI 3 perovskite quantum dots (QDs) doped borosilicate glass was prepared by the process of melt-quenching and subsequent annealing. With the introduction of ZnO to the parent glass as the glass network intermediate, the optical properties of the resultant samples are dramatically enhanced. Both the photoluminescence (PL) intensity and photoluminescence quantum yield (PLQY) shows a strong dependence on ZnO concentration as ZnO is found to facilitate the precipitated of the QDs by reducing the connectivity of three-dimensional glass network built from SiO 4 tetrahedrons. The tunable visible-band PL emission of the CsPbI 3 QD-doped glass could find potential applications in white LEDs and lasers.

show abstract

“…Similarly, Xu et al reported on the cross-over from saturated absorption (SA) to (RSA) within a CsPbBr 3 /borosilicate glass, by either increasing the excitation intensity or the perovskite QD size. 63 The observed RSA was attributed to two-photon absorption that induces strong upconversion luminescence of the embedded QDs. In a rather different manner, Xu et al demonstrated recently the potential application of CsPbBr 3 -borosilicate glasses as X-ray scintillators.…”

Section: Composite Glasses and Related Applicationsmentioning

confidence: 99%

Advanced composite glasses with metallic, perovskite, and two-dimensional nanocrystals for optoelectronic and photonic applications

2022

View full text Add to dashboard Cite

show abstract

Linear and nonlinear optical characteristics of CsPbBr3 perovskite quantum dots-doped borosilicate glasses

Cited by 34 publications

References 31 publications

Photon-Induced Electron Transfer in Ligand-Stabilized Monoclinic CsPbBr₃ and Alanine-Functionalized Graphene Heterostructures

Photon-Induced Electron Transfer in Ligand-Stabilized Monoclinic CsPbBr₃ and Alanine-Functionalized Graphene Heterostructures

Effect of ZnO on the crystallization and photoluminescence of CsPbI₃ perovskite quantum dots in borosilicate glasses

Advanced composite glasses with metallic, perovskite, and two-dimensional nanocrystals for optoelectronic and photonic applications

Contact Info

Product

Resources

About

Linear and nonlinear optical characteristics of CsPbBr3 perovskite quantum dots-doped borosilicate glasses

Cited by 34 publications

References 31 publications

Photon-Induced Electron Transfer in Ligand-Stabilized Monoclinic CsPbBr3 and Alanine-Functionalized Graphene Heterostructures

Photon-Induced Electron Transfer in Ligand-Stabilized Monoclinic CsPbBr3 and Alanine-Functionalized Graphene Heterostructures

Effect of ZnO on the crystallization and photoluminescence of CsPbI3 perovskite quantum dots in borosilicate glasses

Advanced composite glasses with metallic, perovskite, and two-dimensional nanocrystals for optoelectronic and photonic applications

Contact Info

Product

Resources

About

Photon-Induced Electron Transfer in Ligand-Stabilized Monoclinic CsPbBr₃ and Alanine-Functionalized Graphene Heterostructures

Photon-Induced Electron Transfer in Ligand-Stabilized Monoclinic CsPbBr₃ and Alanine-Functionalized Graphene Heterostructures

Effect of ZnO on the crystallization and photoluminescence of CsPbI₃ perovskite quantum dots in borosilicate glasses