Room-Temperature Synthesis of Two-Dimensional Hexagonal Boron Nitride Nanosheet-Stabilized CsPbBr3 Perovskite Quantum Dots

2019 ◽  
Vol 11 (8) ◽  
pp. 8242-8249 ◽  
Author(s):  
Yang Li ◽  
Liubing Dong ◽  
Nan Chen ◽  
Ziquan Guo ◽  
Ying Lv ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Boron Nitride ◽  
Room Temperature ◽  
Hexagonal Boron Nitride ◽  
Two Dimensional ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
Boron Nitride Nanosheet ◽  
Perovskite Quantum Dots

Room Temperature Synthesis and Fluorescence Visualization Sensing of Inorganic Perovskite Quantum Dots

2020 ◽  
Vol MA2020-01 (27) ◽  
pp. 1979-1979
Author(s):  
Zhiwei Qiu ◽  
Yuzhu Chen ◽  
Yu Zhang ◽  
Houjian Gong ◽  
Jingbin Zeng
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Temperature Synthesis ◽  
Inorganic Perovskite ◽  
Room Temperature Synthesis ◽  
Perovskite Quantum Dots

scholarly journals Rapid synthesis of hybrid methylammonium lead iodide perovskite quantum dots and rich MnI2 substitution favouring Pb-free warm white LED applications

2019 ◽  
Vol 1 (8) ◽  
pp. 2999-3008 ◽  
Author(s):  
Rajan Kumar Singh ◽  
Sudipta Som ◽  
Somrita Dutta ◽  
Neha Jain ◽  
Mei-Tsun Kuo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Environmental Pollution ◽  
Room Temperature ◽  
White Led ◽  
Lead Iodide ◽  
Rapid Synthesis ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
Perovskite Quantum Dots ◽  
Methylammonium Lead Iodide

We present a facile room temperature synthesis of CH3NH3Pb1−xMnxI3 perovskite quantum dots (PQDs) substituting manganese (Mn2+) at the lead (Pb2+) sites to minimize environmental pollution and make it commercially feasible.

An efficient and stable fluorescent sensor based on APTES-functionalized CsPbBr3 perovskite quantum dots for ultrasensitive tetracycline detection in ethanol

2020 ◽  
Vol 8 (35) ◽  
pp. 12196-12203 ◽  
Author(s):  
Tong Wang ◽  
Xiao Wei ◽  
Yuhan Zong ◽  
Shen Zhang ◽  
Weisheng Guan
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Fluorescent Sensor ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
Perovskite Quantum Dots ◽  
Tetracycline Detection

In this work, a novel fluorescent sensor based on perovskite quantum dots was simply synthesized by room temperature synthesis for the detection of tetracycline (TC) in highly polar ethanol.

Tuning the electronic and optical properties of hexagonal boron-nitride nanosheet by inserting graphene quantum dots

2018 ◽  
Vol 32 (06) ◽  
pp. 1850084 ◽  
Author(s):  
Yi-Min Ding ◽  
Jun-Jie Shi ◽  
Min Zhang ◽  
Meng Wu ◽  
Hui Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Graphene Quantum Dots ◽  
Band Gaps ◽  
Hybrid Structures ◽  
Electronic And Optical Properties ◽  
Boron Nitride Nanosheet ◽  
Optoelectronic Nanodevices

It is difficult to integrate two-dimensional (2D) graphene and hexagonal boron-nitride (h-BN) in optoelectronic nanodevices, due to the semi-metal and insulator characteristic of graphene and h-BN, respectively. Using the state-of-the-art first-principles calculations based on many-body perturbation theory, we investigate the electronic and optical properties of h-BN nanosheet embedded with graphene dots. We find that C atom impurities doped in h-BN nanosheet tend to phase-separate into graphene quantum dots (QD), and BNC hybrid structure, i.e. a graphene dot within a h-BN background, can be formed. The band gaps of BNC hybrid structures have an inverse relationship with the size of graphene dot. The calculated optical band gaps for BNC structures vary from 4.71 eV to 3.77 eV, which are much smaller than that of h-BN nanosheet. Furthermore, the valence band maximum is located in C atoms bonded to B atoms and conduction band minimum is located in C atoms bonded to N atoms, which means the electron and hole wave functions are closely distributed around the graphene dot. The bound excitons, localized around the graphene dot, determine the optical spectra of the BNC hybrid structures, in which the exciton binding energies decrease with increase in the size of graphene dots. Our results provide an important theoretical basis for the design and development of BNC-based optoelectronic nanodevices.

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