Brightly luminescent and color-tunable green-violet-emitting halide perovskite CH3NH3PbBr3 colloidal quantum dots: an alternative to lighting and display technology

2018 ◽  
Vol 20 (30) ◽  
pp. 19950-19957 ◽  
Author(s):  
Yonghao Liu ◽  
Quan Xu ◽  
Shuai Chang ◽  
Zhao Lv ◽  
Sheng Huang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite ◽  
Color Tunable ◽  
Display Technology ◽  
Halide Perovskite ◽  
Optoelectronic Applications

Organic–inorganic hybrid perovskite (CH3NH3PbX3, X = Cl, Br, or I) quantum dots have become one of the most promising materials for optoelectronic applications.

Temperature Sensitive and Reversible Halide Ion Exchange in Inorganic–Organic Hybrid CH3NH3PbI3−xBrx Mixed-Halide Perovskite

2021 ◽  
Vol 16 (4) ◽  
pp. 670-674
Author(s):  
Shuting Cui ◽  
Xun Sun ◽  
SiWen Tao ◽  
Huawei Zhou ◽  
Jie Yin ◽  
...  
Keyword(s):  
High Temperature ◽  
Ion Exchange ◽  
Band Gap ◽  
Room Temperature ◽  
Temperature Sensitive ◽  
Mechanism Study ◽  
Interesting Phenomenon ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite ◽  
Halide Perovskite

Ion exchange of organic-inorganic hybrid perovskite plays a significant role in controlling the performance of materials ant its devices. In this study, an interesting phenomenon was observed that the precipitate in suspension (CH3NH3PbI3−xBrx in γ-butyrolactone) brought out different colors at high and room temperature. The mechanism study appears that the phenomenon is controlled by temperature sensitive and reversible halide ion exchange in organic-inorganic hybrid CH3NH3PbI3−xBrx mixed-halide perovskite. The results of structure phase, element composition morphology and band gap illustrate that high temperature 55 °C is beneficial to the increasing of I content in MAPbI3−xBrx and room temperature or lower is advantageous to increasing of Br content in MAPbI3−xBrx. Compared with MAPbI0.76Br2.24 precipitate acquired at room temperature, MAPbI1.17Br1.83 precipitate got at high temperature illustrate wider lattice spacing, better crystallinity, better morphology and narrower band gap. The results and findings in this study will prompt the interest of readers or experts in the field of organic-inorganic hybrid perovskite materials and related optoelectronic applications.

Decisive Influence of Amorphous PbI2-x on Photodegradation of Halide Perovskite

2021 ◽  
Author(s):  
Yue Lu ◽  
Jingcong Hu ◽  
Yang Ge ◽  
Bohai Tian ◽  
Zeyu Zhang ◽  
...  
Keyword(s):  
Inorganic Hybrid ◽  
Decisive Influence ◽  
Hybrid Perovskite ◽  
Perovskite Material ◽  
Halide Perovskite

Capturing the photolysis process of archetypal perovskite material (such as methylammonium lead triiodide, MAPbI3) into metallic Pb0 is fundamentally important to understand the photodegradation pathway of organic-inorganic hybrid perovskite (OIHP)....

All-inorganic colloidal quantum dots display technology

2014 ◽  
Vol 29 (4) ◽  
pp. 479-484 ◽  
Author(s):  
耿卫东 GENG Wei-dong ◽  
郭嘉 GUO Jia ◽  
唐静 TANG Jing ◽  
刘会刚 LIU Hui-gang
Keyword(s):  
Quantum Dots ◽  
Colloidal Quantum Dots ◽  
Display Technology

scholarly journals Quantum dots of two-dimensional Ruddlesden–Popper organic–inorganic hybrid perovskite with high optical limiting properties

AIP Advances ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 045130 ◽  
Author(s):  
Sreekanth J. Varma ◽  
Jayesh Cherusseri ◽  
Jinxin Li ◽  
Jitesh Kumar ◽  
Elizabeth Barrios ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Limiting ◽  
Two Dimensional ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite

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.

Tailoring nucleation and grain growth by changing the precursor phase ratio for efficient organic lead halide perovskite optoelectronic devices

2017 ◽  
Vol 5 (39) ◽  
pp. 10114-10121 ◽  
Author(s):  
Swaminathan Venkatesan ◽  
Mehedhi Hasan ◽  
Junyoung Kim ◽  
Nader R. Rady ◽  
Sandeep Sohal ◽  
...  
Keyword(s):  
Grain Growth ◽  
Optoelectronic Devices ◽  
Nucleation And Growth ◽  
Molar Ratio ◽  
Inorganic Hybrid ◽  
Hybrid Perovskite ◽  
Precursor Phase ◽  
Organic Lead ◽  
Halide Perovskite ◽  
Lead Halide

The nucleation and growth of organic–inorganic hybrid perovskite films induced by the molar ratio of precursor components and their role in optoelectronic performance are investigated.

scholarly journals Preparation of SnS2 colloidal quantum dots and their application in organic/inorganic hybrid solar cells

2011 ◽  
Vol 6 (1) ◽  
pp. 298 ◽  
Author(s):  
Furui Tan ◽  
Shengchun Qu ◽  
Ju Wu ◽  
Kong Liu ◽  
Shuyun Zhou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Colloidal Quantum Dots ◽  
Hybrid Solar Cells ◽  
Inorganic Hybrid

scholarly journals Under the spotlight: The organic–inorganic hybrid halide perovskite for optoelectronic applications

Nano Today ◽  
2015 ◽  
Vol 10 (3) ◽  
pp. 355-396 ◽  
Author(s):  
Qi Chen ◽  
Nicholas De Marco ◽  
Yang (Michael) Yang ◽  
Tze-Bin Song ◽  
Chun-Chao Chen ◽  
...  
Keyword(s):  
Inorganic Hybrid ◽  
Halide Perovskite ◽  
Optoelectronic Applications
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