Inverse Temperature Crystallization of Formamidinium Tin Iodide: Indirect Transition State and Restriction of Cation Motion

2019 ◽  
Vol 20 (2) ◽  
pp. 874-883
Author(s):  
Takeyuki Sekimoto ◽  
Michio Suzuka ◽  
Tomoyasu Yokoyama ◽  
Yoshiko Miyamoto ◽  
Ryusuke Uchida ◽  
...  
CrystEngComm ◽  
2021 ◽  
Author(s):  
Maryam Bari ◽  
Hua Wu ◽  
Alexei A. Bokov ◽  
Rana Faryad Ali ◽  
Hamel N. Tailor ◽  
...  

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.


2020 ◽  
Vol 537 ◽  
pp. 125598 ◽  
Author(s):  
Ramashanker Gupta ◽  
Tulja Bhavani Korukonda ◽  
Shailendra Kumar Gupta ◽  
Bhanu Pratap Dhamaniya ◽  
Priyanka Chhillar ◽  
...  

ACS Nano ◽  
2013 ◽  
Vol 7 (11) ◽  
pp. 9920-9926 ◽  
Author(s):  
Xue-Zheng Cao ◽  
Holger Merlitz ◽  
Chen-Xu Wu ◽  
Jens-Uwe Sommer

2019 ◽  
Author(s):  
Zhi Li ◽  
Mansoor Ani Najeeb ◽  
Liana Alves ◽  
Alyssa Sherman ◽  
Peter Cruz Parrilla ◽  
...  

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.


Author(s):  
Yuanbo Cheng ◽  
Menghua Zhu ◽  
Fangbao Wang ◽  
Ruichen Bai ◽  
Jinshan Yao ◽  
...  

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...


2019 ◽  
Vol 4 (6) ◽  
pp. 1372-1379 ◽  
Author(s):  
Zhi Zheng ◽  
Qingsong Hu ◽  
Hongzhi Zhou ◽  
Peng Luo ◽  
Anmin Nie ◽  
...  

Lead-free Cs3Sb2Br9 perovskite nanoflakes with submillimeter in-plane size were synthesized through inverse temperature crystallization growth by controlling the evaporation temperature and solute concentration.


RSC Advances ◽  
2020 ◽  
Vol 10 (51) ◽  
pp. 30767-30775 ◽  
Author(s):  
Ramya Krishna Battula ◽  
Ganapathy Veerappan ◽  
P. Bhyrappa ◽  
C. Sudakar ◽  
Easwaramoorthi Ramasamy

MAPbI3 film grown on mesoporous TiO2 showed better crystallinity, performance and stability compared to its planar counterpart.


2020 ◽  
Vol 56 (47) ◽  
pp. 6404-6407
Author(s):  
Yan Chen ◽  
Xuhong Hou ◽  
Siwen Tao ◽  
Xuewei Fu ◽  
Huawei Zhou ◽  
...  

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.


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