Efficient and stable CsPbI3 perovskite quantum dots enabled by in situ ytterbium doping for photovoltaic applications

2019 ◽  
Vol 7 (36) ◽  
pp. 20936-20944 ◽  
Author(s):  
Junwei Shi ◽  
Fangchao Li ◽  
Jianyu Yuan ◽  
Xufeng Ling ◽  
Sijie Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Perovskite Nanocrystals ◽  
Photovoltaic Applications ◽  
Perovskite Quantum Dots ◽  
Optoelectronic Applications ◽  
Ytterbium Doping

Colloidal perovskite nanocrystals, or quantum dots (QDs), have quickly emerged and exhibited unique opportunities for optoelectronic applications.

scholarly journals Long-term ambient air-stable cubic CsPbBr3 perovskite quantum dots using molecular bromine

2019 ◽  
Vol 1 (9) ◽  
pp. 3388-3391 ◽  
Author(s):  
Surakcha Thapa ◽  
Karishma Bhardwaj ◽  
Siddhant Basel ◽  
Sajan Pradhan ◽  
Charlotte J. Eling ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Decisive Role ◽  
Ambient Air ◽  
Molecular Bromine ◽  
Perovskite Nanocrystals ◽  
Perovskite Quantum Dots

Temperature and precursor-controlled in situ generated, oleylammonium halide species from molecular bromine and amine plays decisive role in the synthesis of long-term ambient stable and emission tunable CsPbBr3 perovskite nanocrystals.

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...

scholarly journals The Role of Sodium in Stabilizing Tin-Lead (Sn-Pb) Alloyed Perovskite Quantum Dots

2021 ◽  
Author(s):  
Junke Jiang ◽  
Feng Liu ◽  
Qing Shen ◽  
Shuxia Tao
Keyword(s):  
Quantum Dots ◽  
Phase Stability ◽  
Band Gaps ◽  
Great Promise ◽  
Narrow Bandgap ◽  
Perovskite Quantum Dots ◽  
Optoelectronic Applications

Narrow-bandgap CsSnxPb1-xI3 perovskite quantum dots (QDs) show great promise for optoelectronic applications owing to their reduced use of toxic Pb, improved phase stability, and tunable band gaps in the visible...

P‐101: In‐situ Fabrication Strategy of Perovskite Quantum Dots for Novel Display Technology

2020 ◽  
Vol 51 (1) ◽  
pp. 1743-1744
Author(s):  
Zelong Bai ◽  
Jing Li ◽  
Tao Zhang ◽  
Fei Li ◽  
Ruikuo Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
In Situ Fabrication ◽  
Perovskite Quantum Dots ◽  
Display Technology

In Situ Ligand Bonding Management of CsPbI 3 Perovskite Quantum Dots Enables High‐Performance Photovoltaics and Red Light‐Emitting Diodes

2020 ◽  
Vol 59 (49) ◽  
pp. 22230-22237 ◽  
Author(s):  
Junwei Shi ◽  
Fangchao Li ◽  
Yan Jin ◽  
Cheng Liu ◽  
Ben Cohen‐Kleinstein ◽  
...  
Keyword(s):  
Quantum Dots ◽  
High Performance ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Light Emitting ◽  
Perovskite Quantum Dots

Perovskite quantum dots growth in situ in transparent medium for short wavelength shielding

2020 ◽  
Vol 103 (8) ◽  
pp. 4150-4158 ◽  
Author(s):  
Ze Yang ◽  
Lei Zhao ◽  
Moxiang Li ◽  
Qihua Yang ◽  
Zhaohui Fang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Short Wavelength ◽  
Transparent Medium ◽  
Perovskite Quantum Dots

scholarly journals Efficient and Tunable Electroluminescence from In Situ Synthesized Perovskite Quantum Dots

Small ◽  
2019 ◽  
Vol 15 (8) ◽  
pp. 1804947 ◽  
Author(s):  
Hongling Yu ◽  
Heyong Wang ◽  
Jiangbin Zhang ◽  
Jun Lu ◽  
Zhongcheng Yuan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Perovskite Quantum Dots

Promoting photoluminescence quantum yields of glass-stabilized CsPbX3 (X = Cl, Br, I) perovskite quantum dots through fluorine doping

Nanoscale ◽  
2019 ◽  
Vol 11 (37) ◽  
pp. 17216-17221 ◽  
Author(s):  
Daqin Chen ◽  
Yue Liu ◽  
Changbin Yang ◽  
Jiasong Zhong ◽  
Su Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Yields ◽  
Fluorine Doping ◽  
Glass Crystallization ◽  
Perovskite Quantum Dots

Highly luminescent glass-stabilized CsPbX3 (X = Cl, Br, I) perovskite QDs are fabricated via an in situ glass crystallization strategy and fluorine doping.

scholarly journals Ultrasensitive and ultrathin phototransistors and photonic synapses using perovskite quantum dots grown from graphene lattice

2020 ◽  
Vol 6 (7) ◽  
pp. eaay5225 ◽  
Author(s):  
Basudev Pradhan ◽  
Sonali Das ◽  
Jinxin Li ◽  
Farzana Chowdhury ◽  
Jayesh Cherusseri ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optoelectronic Devices ◽  
Generation Efficiency ◽  
Charge Generation ◽  
Graphene Lattice ◽  
New Directions ◽  
Perovskite Quantum Dots ◽  
Efficient Charge ◽  
Halide Perovskite ◽  
Optoelectronic Applications

Organic-inorganic halide perovskite quantum dots (PQDs) constitute an attractive class of materials for many optoelectronic applications. However, their charge transport properties are inferior to materials like graphene. On the other hand, the charge generation efficiency of graphene is too low to be used in many optoelectronic applications. Here, we demonstrate the development of ultrathin phototransistors and photonic synapses using a graphene-PQD (G-PQD) superstructure prepared by growing PQDs directly from a graphene lattice. We show that the G-PQDs superstructure synchronizes efficient charge generation and transport on a single platform. G-PQD phototransistors exhibit excellent responsivity of 1.4 × 108 AW–1 and specific detectivity of 4.72 × 1015 Jones at 430 nm. Moreover, the light-assisted memory effect of these superstructures enables photonic synaptic behavior, where neuromorphic computing is demonstrated by facial recognition with the assistance of machine learning. We anticipate that the G-PQD superstructures will bolster new directions in the development of highly efficient optoelectronic devices.

Room-temperature and gram-scale synthesis of CsPbX3 (X = Cl, Br, I) perovskite nanocrystals with 50–85% photoluminescence quantum yields

2016 ◽  
Vol 52 (45) ◽  
pp. 7265-7268 ◽  
Author(s):  
Song Wei ◽  
Yanchun Yang ◽  
Xiaojiao Kang ◽  
Lan Wang ◽  
Lijian Huang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Quantum Yields ◽  
Perovskite Nanocrystals ◽  
Perovskite Quantum Dots

CsPbX3 perovskite quantum dots with 50–85% photoluminescence quantum yields have been successfully synthesized at room temperature in open air.

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