Polysalt ligands achieve higher quantum yield and improved colloidal stability for CsPbBr3 quantum dots

Nanoscale ◽  
2021 ◽  
Author(s):  
Sisi Wang ◽  
Liang Du ◽  
Selin Donmez ◽  
Yan Xin ◽  
Hedi Mattoussi
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Colloidal Stability ◽  
Semiconductor Nanocrystals ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Colloidal Lead ◽  
Optoelectronic Applications ◽  
Cspbbr3 Quantum Dots ◽  
Lead Halide

Colloidal lead halide perovskite quantum dots (PQDs) are relatively new semiconductor nanocrystals with great potential for use in optoelectronic applications.

On the determination of absorption cross section of colloidal lead halide perovskite quantum dots

2019 ◽  
Vol 151 (15) ◽  
pp. 154706 ◽  
Author(s):  
Joseph Puthenpurayil ◽  
Oscar Hsu-Cheng Cheng ◽  
Tian Qiao ◽  
Daniel Rossi ◽  
Dong Hee Son
Keyword(s):  
Quantum Dots ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Absorption Cross ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Colloidal Lead ◽  
Lead Halide

scholarly journals Coherent single-photon emission from colloidal lead halide perovskite quantum dots

Science ◽  
2019 ◽  
Vol 363 (6431) ◽  
pp. 1068-1072 ◽  
Author(s):  
Hendrik Utzat ◽  
Weiwei Sun ◽  
Alexander E. K. Kaplan ◽  
Franziska Krieg ◽  
Matthias Ginterseder ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Single Photon ◽  
Photon Emission ◽  
Building Blocks ◽  
Single Photon Emission ◽  
Starting Point ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Colloidal Lead ◽  
Lead Halide

Chemically made colloidal semiconductor quantum dots have long been proposed as scalable and color-tunable single emitters in quantum optics, but they have typically suffered from prohibitively incoherent emission. We now demonstrate that individual colloidal lead halide perovskite quantum dots (PQDs) display highly efficient single-photon emission with optical coherence times as long as 80 picoseconds, an appreciable fraction of their 210-picosecond radiative lifetimes. These measurements suggest that PQDs should be explored as building blocks in sources of indistinguishable single photons and entangled photon pairs. Our results present a starting point for the rational design of lead halide perovskite–based quantum emitters that have fast emission, wide spectral tunability, and scalable production and that benefit from the hybrid integration with nanophotonic components that has been demonstrated for colloidal materials.

Improvement in quantum yield by suppression of trions in room temperature synthesized CsPbBr3 perovskite quantum dots for backlight displays

Nanoscale ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 3820-3826 ◽  
Author(s):  
Kashyap Dave ◽  
Zhen Bao ◽  
Satoshi Nakahara ◽  
Keiichi Ohara ◽  
Sojiro Masada ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Room Temperature ◽  
Surface Defects ◽  
Synthesis Methods ◽  
Device Performance ◽  
Photoluminescence Quantum Yield ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Lead Halide

Surface defects and synthesis methods play important roles in the photoluminescence quantum yield (PLQY), stability, and the device performance of lead halide perovskite quantum dots (PQDs).

Poly(Vinylidene Fluoride)-Passivated CsPbBr3 Perovskite Quantum Dots with Near-Unity Photoluminescence Quantum Yield and Superior Stability

2021 ◽  
Author(s):  
Lin Yang ◽  
Bowen Fu ◽  
Xu Li ◽  
Hao Chen ◽  
Lili Li
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Vinylidene Fluoride ◽  
Excellent Performance ◽  
Inorganic Perovskite ◽  
Photoluminescence Quantum Yield ◽  
Poly Vinylidene Fluoride ◽  
Perovskite Quantum Dots ◽  
Optoelectronic Applications ◽  
Pl Quenching

All inorganic perovskite quantum dots (QDs) have received great attention owing to their excellent performance in optoelectronic applications. However, they often suffer from the defect-related photoluminescence (PL) quenching and phase...

Burstein-Moss shift of lead halide perovskite quantum dots induced by electron injection from graphene oxide

2021 ◽  
Vol 545 ◽  
pp. 149003
Author(s):  
Shengnan Ni ◽  
Haijun Qin ◽  
Jianfeng Wen ◽  
Xinyu Li ◽  
Ming Li ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Graphene Oxide ◽  
Electron Injection ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Lead Halide

Heterogeneous Post-Passivation of Inorganic Cesium Lead Halide Perovskite Quantum Dots for Efficient Electroluminescent Devices

2021 ◽  
Author(s):  
Xuefei Li ◽  
Qingqing Yang ◽  
Liuqing Yang ◽  
Shumeng Wang ◽  
Junqiao Ding ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electroluminescent Devices ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Lead Halide

A heterogeneous post-passivation has been demonstrated by using formamidiniu bromide (FABr) to compensate the surface bromo vacancy of inorganic cesium lead halide perovskite quantum dots (QDs). Benefitting from its limited...

Thermally Stable Copper(II)-Doped Cesium Lead Halide Perovskite Quantum Dots with Strong Blue Emission

2019 ◽  
Vol 10 (5) ◽  
pp. 943-952 ◽  
Author(s):  
Chenghao Bi ◽  
Shixun Wang ◽  
Qiang Li ◽  
Stephen V. Kershaw ◽  
Jianjun Tian ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Blue Emission ◽  
Thermally Stable ◽  
Perovskite Quantum Dots ◽  
Strong Blue Emission ◽  
Halide Perovskite ◽  
Lead Halide

Amine-Free Synthesis of Cesium Lead Halide Perovskite Quantum Dots for Efficient Light-Emitting Diodes

2016 ◽  
Vol 26 (47) ◽  
pp. 8757-8763 ◽  
Author(s):  
Emre Yassitepe ◽  
Zhenyu Yang ◽  
Oleksandr Voznyy ◽  
Younghoon Kim ◽  
Grant Walters ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Lead Halide

Embedding lead halide perovskite quantum dots in carboxybenzene microcrystals improves stability

Nano Research ◽  
2017 ◽  
Vol 10 (8) ◽  
pp. 2692-2698 ◽  
Author(s):  
Wei Xu ◽  
Zhixiong Cai ◽  
Feiming Li ◽  
Jing Dong ◽  
Yiru Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Perovskite Quantum Dots ◽  
Halide Perovskite ◽  
Lead Halide
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