Suppressing the Defects in Cesium-Based Perovskite via Polymeric Interlayer Assisted Crystallization Control

2021 ◽  
Author(s):  
Jia Guo ◽  
Kaiyang Wang ◽  
Tanghao Liu ◽  
Qi Wei ◽  
Shiliang Mei ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Quantum Yield ◽  
Light Emission ◽  
Metal Halide ◽  
Luminescence Quantum Yield ◽  
Halide Perovskites ◽  
Scientific Attention

Cesium-based inorganic metal-halide perovskites have attracted a great deal of scientific attention as effective emissive materials in light emission, due to their high luminescence quantum yield and outstanding thermal stability....

Organo metal halide perovskites effectively photosensitize the production of singlet oxygen (1Δg)

2019 ◽  
Vol 55 (87) ◽  
pp. 13100-13103 ◽  
Author(s):  
Xian-Fu Zhang ◽  
Baomin Xu
Keyword(s):  
Quantum Dots ◽  
Quantum Yield ◽  
Singlet Oxygen ◽  
Metal Halide ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Halide Perovskites ◽  
Halide Perovskite

Metal halide perovskite quantum dots effectively generate singlet oxygen with a quantum yield of 0.34, the highest among nano semiconductor/nano metal photosensitizers.

Thermal Stability of Mixed Cation Metal Halide Perovskites in Air

2018 ◽  
Vol 10 (6) ◽  
pp. 5485-5491 ◽  
Author(s):  
Wanliang Tan ◽  
Andrea R. Bowring ◽  
Andrew C. Meng ◽  
Michael D. McGehee ◽  
Paul C. McIntyre
Keyword(s):  
Thermal Stability ◽  
Metal Halide ◽  
Mixed Cation ◽  
Halide Perovskites ◽  
Thermal Stability Of

Strongly Coupled Tin-Halide Perovskites to Modulate Light Emission: Tunable 550-640 nm Light Emission (FWHM 36-80 nm) with a Quantum Yield of up to 6.4%

2018 ◽  
Vol 30 (20) ◽  
pp. 1706592 ◽  
Author(s):  
Min-Yi Chen ◽  
Jin-Tai Lin ◽  
Chia-Shuo Hsu ◽  
Chung-Kai Chang ◽  
Ching-Wen Chiu ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Light Emission ◽  
Strongly Coupled ◽  
Halide Perovskites

scholarly journals Facile Synthesis of FAPbI3 Nanorods

Nanomaterials ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 72 ◽  
Author(s):  
He Huang ◽  
Linzhong Wu ◽  
Yiou Wang ◽  
Alexander F. Richter ◽  
Markus Döblinger ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Quantum Yield ◽  
Metal Halide ◽  
Facile Synthesis ◽  
Light Emitting ◽  
Photoluminescence Quantum Yield ◽  
Halide Perovskites ◽  
First Time

Metal halide perovskites are promising materials for a range of applications. The synthesis of light-emitting perovskite nanorods has become popular recently. Thus far, the facile synthesis of perovskite nanorods remains elusive. In this work, we have developed a facile synthesis to fabricate FAPbI3 nanorods for the first time, demonstrating a high photoluminescence quantum yield of 35–42%. The fabrication of the nanorods has been made possible by carefully tuning the concentration of formamidine-oleate as well as the amount of oleic acid with pre-dissolved PbI2 in toluene with oleic acid/oleylamine.

scholarly journals Broadly tunable metal halide perovskites for solid-state light-emission applications

2017 ◽  
Vol 20 (8) ◽  
pp. 413-424 ◽  
Author(s):  
Sampson Adjokatse ◽  
Hong-Hua Fang ◽  
Maria Antonietta Loi
Keyword(s):  
Solid State ◽  
Light Emission ◽  
Metal Halide ◽  
Halide Perovskites

Lead-Free Metal Halide Perovskite Nanocrystals for Photocatalysis in Water

2019 ◽  
Author(s):  
Subhajit Bhattacharjee ◽  
Sonu Pratap Chaudhary ◽  
Sayan Bhattacharyya
Keyword(s):  
Charge Carrier ◽  
Wide Spectrum ◽  
Real Life ◽  
Metal Halide ◽  
Lead Free ◽  
Water Medium ◽  
Type I ◽  
Type Ii ◽  
Perovskite Layer ◽  
Halide Perovskites

<p>Metal halide perovskites with high absorption coefficient, direct generation of free charge carriers, excellent ambipolar charge carrier transport properties, point-defect tolerance, compositional versatility and solution processability are potentially transforming the photovoltaics and optoelectronics industries. However their limited ambient stability, particularly those of iodide perovskites, obscures their use as photocatalysts especially in aqueous medium. In an unprecedented approach we have exploited the photo-absorption property of the less toxic lead-free Cs<sub>3</sub>Bi<sub>2</sub>X<sub>9 </sub>(X = Br, I) nanocrystals (NCs) to catalyse the degradation of water pollutant organic dye, methylene blue (MB) in presence of visible light at room temperature. After providing a proof-of-concept with bromide perovskites in isopropanol, the perovskites are employed as photocatalysts in water medium by designing perovskite/Ag<sub>2</sub>S and perovskite/TiO<sub>2 </sub>composite systems, with Type I (or quasi Type II) and Type II alignments, respectively. Ag<sub>2</sub>S and TiO<sub>2</sub> coatings decelerate penetration of water into the perovskite layer while facilitating charge carrier extraction. With a minimal NC loading, Cs<sub>3</sub>Bi<sub>2</sub>I<sub>9</sub>/Ag<sub>2</sub>S degrades ~90% MB within an hour. Our approach has the potential to unravel the photocatalytic properties of metal halide perovskites for a wide spectrum of real-life applications. </p>

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