scholarly journals One-pot scalable synthesis of all-inorganic perovskite nanocrystals with tunable morphology, composition and photoluminescence

CrystEngComm ◽  
2017 ◽  
Vol 19 (46) ◽  
pp. 7041-7049 ◽  
Author(s):  
Emmanuel Acheampong Tsiwah ◽  
Yanxi Ding ◽  
Zixiong Li ◽  
Zhiyong Zhao ◽  
Mingqing Wang ◽  
...  
Keyword(s):  
Visible Region ◽  
Synthetic Approach ◽  
One Pot ◽  
Photoluminescence Emission ◽  
Inorganic Perovskite ◽  
Perovskite Nanocrystals ◽  
Scalable Synthesis ◽  
Lead Halide ◽  
Tunable Morphology

Tuning the morphology, composition and photoluminescence emission over almost the entire visible region of all-inorganic cesium lead halide nanocrystals by a general and facile one-pot synthetic approach.

Trivalent ion mediated abnormal growth of all-inorganic perovskite nanocrystals and their divergent emission properties

Nanoscale ◽  
2019 ◽  
Vol 11 (16) ◽  
pp. 7903-7912 ◽  
Author(s):  
Xunyi Dong ◽  
Emmanuel Acheampong Tsiwah ◽  
Tan Li ◽  
Junjie Hu ◽  
Zixiong Li ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Photoluminescence Emission ◽  
Inorganic Perovskite ◽  
Perovskite Nanocrystals ◽  
Emission Properties ◽  
Abnormal Growth

Generating two complementary optical absorption and photoluminescence emission bands in CsPbBr3 NCs via a facile trivalent ion-mediated synthetic protocol.

scholarly journals Ligand-assisted solid phase synthesis of mixed-halide perovskite nanocrystals for color-pure and efficient electroluminescence

2021 ◽  
Author(s):  
Simon F. Solari ◽  
Sudhir Kumar ◽  
Jakub Jagielski ◽  
Nikolas M. Kubo ◽  
Frank Krumeich ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Synthetic Approach ◽  
Phase Synthesis ◽  
Perovskite Nanocrystals ◽  
Halide Perovskite ◽  
Lead Halide

We have developed a new post-synthetic approach, ligand-assisted solid phase synthesis (LASPS), to tune the optical properties of colloidal methylammonium lead halide perovskite nanocrystals with color-pure electroluminescence.

scholarly journals PTFE-based microreactor system for the continuous synthesis of full-visible-spectrum emitting cesium lead halide perovskite nanocrystals

2017 ◽  
Vol 8 ◽  
pp. 2521-2529 ◽  
Author(s):  
Chengxi Zhang ◽  
Weiling Luan ◽  
Yuhang Yin ◽  
Fuqian Yang
Keyword(s):  
Optical Gain ◽  
Visible Spectrum ◽  
Blue Shift ◽  
Photoluminescence Emission ◽  
Perovskite Nanocrystals ◽  
Luminescence Efficiency ◽  
High Fluorescence ◽  
Lead Halide ◽  
Slight Blue Shift ◽  
Unique Capability

Colloidal perovskite nanocrystals comprised of all inorganic cesium lead halide (CsPbX3, X = Cl, Br, I or a mixture thereof) have potential as optical gain materials due to their high luminescence efficiency. In this work, cesium lead halide nanocrystals are continuously synthesized via a microreactor system consisting of poly(tetrafluoroethylene) (PTFE) capillaries. The synthesized nanocrystals possess excellent optical properties, including a full width at half maximum of 19–35 nm, high fluorescence quantum yield of 47.8–90.55%, and photoluminescence emission in the range of 450–700 nm. For the same precursor concentrations, the photoluminescence emission peak generally increases with increasing reaction temperature, revealing a controllable temperature effect on the photoluminescence characteristics of the synthesized nanocrystals. For quantum dots synthesized with a Br/I ratio of 1:3, a slight blue shift was observed for reaction temperatures greater than 100 °C. This PTFE-based microreactor system provides the unique capability of continuously synthesizing high-quality perovskite nanocrystals that emit over the full visible spectrum with applications ranging from displays and optoelectronic devices.

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

Bromopropane as a Novel Bromine Precursor for the Completely Amine Free Colloidal Synthesis of Ultra-Stable and Highly Luminescent Green-Emitting Cesium Lead Bromide (CsPbBr3) Perovskite Nanocrystals

Nanoscale ◽  
2021 ◽  
Author(s):  
Syed Akhil ◽  
V.G.Vasavi Dutt ◽  
Nimai Mishra
Keyword(s):  
Optoelectronic Devices ◽  
Colloidal Synthesis ◽  
Ambient Conditions ◽  
Active Materials ◽  
Perovskite Nanocrystals ◽  
Lead Bromide ◽  
Halide Perovskite ◽  
Lead Halide ◽  
Poor Stability

Recently lead halide perovskite nanocrystals (PNCs) have attracted intense interest as promising active materials for optoelectronic devices. However, their extensive applications are still hampered by poor stability in ambient conditions....

Direct photoinduced synthesis of lead halide perovskite nanocrystals and nanocomposites

Nano Today ◽  
2021 ◽  
Vol 39 ◽  
pp. 101179
Author(s):  
Jiaojiao Wei ◽  
Wei Zheng ◽  
Ping Huang ◽  
Zhongliang Gong ◽  
Yan Liu ◽  
...  
Keyword(s):  
Perovskite Nanocrystals ◽  
Halide Perovskite ◽  
Photoinduced Synthesis ◽  
Lead Halide

scholarly journals Quantifying Photoinduced Polaronic Distortions in Inorganic Lead Halide Perovskite Nanocrystals

2021 ◽  
Author(s):  
Oliviero Cannelli ◽  
Nicola Colonna ◽  
Michele Puppin ◽  
Thomas C. Rossi ◽  
Dominik Kinschel ◽  
...  
Keyword(s):  
Perovskite Nanocrystals ◽  
Inorganic Lead ◽  
Halide Perovskite ◽  
Lead Halide

Hot Hole Cooling and Transfer Dynamics from Lead Halide Perovskite Nanocrystals Using Porphyrin Molecules

2021 ◽  
Vol 125 (10) ◽  
pp. 5859-5869
Author(s):  
Goutam Ghosh ◽  
Kritiman Marjit ◽  
Srijon Ghosh ◽  
Arnab Ghosh ◽  
Raihan Ahammed ◽  
...  
Keyword(s):  
Perovskite Nanocrystals ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals Surface Modification for Improving Photoredox Activity of CsPbBr3 Nanocrystals

2021 ◽  
Author(s):  
Syed Akhil ◽  
V.G.Vasavi Dutt ◽  
Nimai Mishra
Keyword(s):  
Surface Modification ◽  
Excited State ◽  
Surface Chemistry ◽  
Perovskite Nanocrystals ◽  
Inorganic Lead ◽  
Halide Perovskite ◽  
Photocatalytic Reactions ◽  
Lead Halide

In recent years inorganic lead halide perovskite nanocrystals (PNCs) have been used in photocatalytic reactions. The surface chemistry of the PNCs can play an important role in the excited state...

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