scholarly journals Enhanced photosensitive properties of single-crystal formamidinium lead bromide iodine (FAPbBr2I) based photodetector

2022 ◽  
Author(s):  
Ramashanker Gupta ◽  
Vinay Gupta ◽  
Ram Datt ◽  
Sandeep Arya ◽  
Animesh Pandey ◽  
...  
Keyword(s):  
Single Crystal ◽  
Structural Characterization ◽  
Inverse Temperature ◽  
Crystallization Method ◽  
Lead Bromide ◽  
Halide Perovskite ◽  
Temperature Crystallization

In this work, the growth of formamidinium (FA) based mixed halide perovskite single-crystal via inverse temperature crystallization method is investigated and characterized to detect its photosensitive properties. The structural characterization...

Room temperature synthesis of perovskite (MAPbI3) single crystal by anti-solvent assisted inverse temperature crystallization method

2020 ◽  
Vol 537 ◽  
pp. 125598 ◽  
Author(s):  
Ramashanker Gupta ◽  
Tulja Bhavani Korukonda ◽  
Shailendra Kumar Gupta ◽  
Bhanu Pratap Dhamaniya ◽  
Priyanka Chhillar ◽  
...  
Keyword(s):  
Single Crystal ◽  
Room Temperature ◽  
Inverse Temperature ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
Crystallization Method ◽  
Temperature Crystallization

scholarly journals Robot-Accelerated Perovskite Investigation and Discovery (RAPID): 1. Inverse Temperature Crystallization

2019 ◽  
Author(s):  
Zhi Li ◽  
Mansoor Ani Najeeb ◽  
Liana Alves ◽  
Alyssa Sherman ◽  
Peter Cruz Parrilla ◽  
...  
Keyword(s):  
Machine Learning ◽  
Single Crystal ◽  
High Throughput ◽  
Metal Halide ◽  
Crystal Formation ◽  
Inverse Temperature ◽  
High Quality ◽  
Metal Halide Perovskite ◽  
Halide Perovskite ◽  
Temperature Crystallization

Metal halide perovskites are a promising class of materials for next-generation photovoltaic and optoelectronic devices. The discovery and full characterization of new perovskite-derived materials are limited by the difficulty of growing high quality crystals needed for single-crystal X-ray diffraction studies. We present the first automated, high-throughput approach for metal halide perovskite single crystal discovery based on inverse temperature crystallization (ITC) as a means to rapidly identify and optimize synthesis conditions for the formation of high quality single crystals. Using this automated approach, a total of 1928 metal halide perovskite synthesis reactions were conducted using six organic ammonium cations (methylammonium, ethylammonium, n-butylammonium, formamidinium, guanidinium, and acetamidinium), increasing the number of metal halide perovskite materials accessible by ITC syntheses by three and resulting in the formation of a new phase, [C<sub>2</sub>H<sub>7</sub>N<sub>2</sub>][PbI<sub>3</sub>]. This comprehensive dataset allows for a statistical quantification of the total experimental space and of the likelihood of large single crystal formation. Moreover, this dataset enables the construction and evaluation of machine learning models for predicting crystal formation conditions. This work is a proof-of-concept that combining high throughput experimentation and machine learning accelerates and enhances the study of metal halide perovskite crystallization. This approach is designed to be generalizable to different synthetic routes for the acceleration of materials discovery.

scholarly journals Robot-Accelerated Perovskite Investigation and Discovery (RAPID): 1. Inverse Temperature Crystallization

2019 ◽  
Author(s):  
Zhi Li ◽  
Mansoor Ani Najeeb ◽  
Liana Alves ◽  
Alyssa Sherman ◽  
Peter Cruz Parrilla ◽  
...  
Keyword(s):  
Machine Learning ◽  
Single Crystal ◽  
High Throughput ◽  
Metal Halide ◽  
Crystal Formation ◽  
Inverse Temperature ◽  
High Quality ◽  
Metal Halide Perovskite ◽  
Halide Perovskite ◽  
Temperature Crystallization

Metal halide perovskites are a promising class of materials for next-generation photovoltaic and optoelectronic devices. The discovery and full characterization of new perovskite-derived materials are limited by the difficulty of growing high quality crystals needed for single-crystal X-ray diffraction studies. We present the first automated, high-throughput approach for metal halide perovskite single crystal discovery based on inverse temperature crystallization (ITC) as a means to rapidly identify and optimize synthesis conditions for the formation of high quality single crystals. Using this automated approach, a total of 1928 metal halide perovskite synthesis reactions were conducted using six organic ammonium cations (methylammonium, ethylammonium, n-butylammonium, formamidinium, guanidinium, and acetamidinium), increasing the number of metal halide perovskite materials accessible by ITC syntheses by three and resulting in the formation of a new phase, [C<sub>2</sub>H<sub>7</sub>N<sub>2</sub>][PbI<sub>3</sub>]. This comprehensive dataset allows for a statistical quantification of the total experimental space and of the likelihood of large single crystal formation. Moreover, this dataset enables the construction and evaluation of machine learning models for predicting crystal formation conditions. This work is a proof-of-concept that combining high throughput experimentation and machine learning accelerates and enhances the study of metal halide perovskite crystallization. This approach is designed to be generalizable to different synthetic routes for the acceleration of materials discovery.

Room-temperature synthesis, growth mechanisms and opto-electronic properties of organic–inorganic halide perovskite CH3NH3PbX3 (X = I, Br, and Cl) single crystals

CrystEngComm ◽  
2021 ◽  
Author(s):  
Maryam Bari ◽  
Hua Wu ◽  
Alexei A. Bokov ◽  
Rana Faryad Ali ◽  
Hamel N. Tailor ◽  
...  
Keyword(s):  
Electronic Properties ◽  
Single Crystals ◽  
Room Temperature ◽  
Solubility Curve ◽  
Inverse Temperature ◽  
Growth Mechanisms ◽  
Temperature Synthesis ◽  
Room Temperature Synthesis ◽  
Halide Perovskite ◽  
Temperature Crystallization

Growth of MAPbX3 (X = I, Br, and Cl) single crystals by room temperature crystallization (RTC) method, and the crystallization pathway illustrated by the solubility curve of MAPbCl3 in DMSO, compared with inverse temperature crystallization (ITC) method.

Precursor solution dependent secondary phase defects in CsPbBr3 single crystal grown by inverse temperature crystallization

2021 ◽  
Author(s):  
Yuanbo Cheng ◽  
Menghua Zhu ◽  
Fangbao Wang ◽  
Ruichen Bai ◽  
Jinshan Yao ◽  
...  
Keyword(s):  
Single Crystal ◽  
Precursor Solution ◽  
Secondary Phase ◽  
Inverse Temperature ◽  
Crystalline Defects ◽  
Temperature Crystallization

The understanding and tailoring of crystalline defects have been a cornerstone of established semiconductors technological deployment. Here, we report the secondary phase (SP) defects of CsPb2Br5 in CsPbBr3 crystals grown...

Synthesis, crystal structure and photoresponse of tetragonal phase single crystal CH3NH3PbCl3

2020 ◽  
Vol 56 (47) ◽  
pp. 6404-6407
Author(s):  
Yan Chen ◽  
Xuhong Hou ◽  
Siwen Tao ◽  
Xuewei Fu ◽  
Huawei Zhou ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Tetragonal Phase ◽  
High Sensitivity ◽  
Inverse Temperature ◽  
Uv Photodetector ◽  
Space Group ◽  
Temperature Crystallization

In this study, we synthesized tetragonal phase MAPbCl3 with the P4/mcc (124) space group by a modified inverse temperature crystallization (M-ITC) method. The UV photodetector based on SC T-MAPbCl3 exhibits high sensitivity.

scholarly journals Retrograde solubility of formamidinium and methylammonium lead halide perovskites enabling rapid single crystal growth

2015 ◽  
Vol 51 (100) ◽  
pp. 17658-17661 ◽  
Author(s):  
Makhsud I. Saidaminov ◽  
Ahmed L. Abdelhady ◽  
Giacomo Maculan ◽  
Osman M. Bakr
Keyword(s):  
Crystal Growth ◽  
Single Crystal ◽  
Single Crystal Growth ◽  
Inverse Temperature ◽  
Retrograde Solubility ◽  
Halide Perovskites ◽  
The Right ◽  
Lead Halide ◽  
Temperature Crystallization

Based on the right choice of solvent(s), the retrograde solubility of hybrid perovskites can be achieved enabling rapid inverse temperature crystallization.

scholarly journals Surface passivated halide perovskite single-crystal for efficient photoelectrochemical synthesis of dimethoxydihydrofuran

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xu-Dong Wang ◽  
Yu-Hua Huang ◽  
Jin-Feng Liao ◽  
Ze-Feng Wei ◽  
Wen-Guang Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Single Crystal ◽  
Surface Defects ◽  
Fold Increase ◽  
Catalytic Layer ◽  
Protective Film ◽  
Photoelectrochemical Performance ◽  
Lead Bromide ◽  
Transport Behaviour ◽  
Halide Perovskite

AbstractHalide perovskite single-crystals have recently been widely highlighted to possess high light harvesting capability and superior charge transport behaviour, which further enable their attractive performance in photovoltaics. However, their application in photoelectrochemical cells has not yet been reported. Here, a methylammonium lead bromide MAPbBr3 single-crystal thin film is reported as a photoanode with potential application in photoelectrochemical organic synthesis, 2,5-dimethoxy-2,5-dihydrofuran. Depositing an ultrathin Al2O3 layer is found to effectively passivate perovskite surface defects. Thus, the nearly 5-fold increase in photoelectrochemical performance with the saturated current being increased from 1.2 to 5.5 mA cm−2 is mainly attributed to suppressed trap-assisted recombination for MAPbBr3 single-crystal thin film/Al2O3. In addition, Ti3+-species-rich titanium deposition has been introduced not only as a protective film but also as a catalytic layer to further advance performance and stability. As an encouraging result, the photoelectrochemical performance and stability of MAPbBr3 single-crystal thin film/Al2O3/Ti-based photoanode have been significantly improved for 6 h continuous dimethoxydihydrofuran evolution test with a high Faraday efficiency of 93%.

Hollow Metal Halide Perovskite Nanocrystals with Efficient Blue Emissions

2019 ◽  
Author(s):  
Michael Worku ◽  
Yu Tian ◽  
Chenkun Zhou ◽  
Haoran Lin ◽  
Maya Chaaban ◽  
...  
Keyword(s):  
Precursor Solution ◽  
Visible Spectral Region ◽  
Metal Halide ◽  
Synthetic Control ◽  
Perovskite Nanocrystals ◽  
Highly Efficient ◽  
Quantum Confinement Effects ◽  
Metal Halide Perovskite ◽  
Lead Bromide ◽  
Halide Perovskite

Metal halide perovskite nanocrystals (NCs) have emerged as a new generation light emitting materials with narrow emissions and high photoluminescence quantum efficiencies (PLQEs). Various types of perovskite NCs, e.g. platelets, wires, and cubes, have been discovered to exhibit tunable emissions across the whole visible spectral region. Despite remarkable advances in the field of metal halide perovskite NCs over the last few years, many nanostructures in inorganic NCs have yet been realized in metal halide perovskites and producing highly efficient blue emitting perovskite NCs remains challenging and of great interest. Here we report for the first time the discovery of highly efficient blue emitting cesium lead bromide perovskite (CsPbBr3) NCs with hollow structures. By facile solution processing of cesium lead bromide perovskite precursor solution containing additional ethylenediammonium bromide and sodium bromide, in-situ formation of hollow CsPbBr3 NCs with controlled particle and pore sizes is realized. Synthetic control of hollow nanostructures with quantum confinement effects results in color tuning of CsPbBr3 NCs from green to blue with high PLQEs of up to 81 %.<br><div><br></div>

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