scholarly journals Stable Cesium Formamidinium Lead Halide Perovskites: A Comparison of Photophysics and Phase Purity in Thin Films and Single Crystals

2020 ◽  
Vol 8 (4) ◽  
pp. 1901041 ◽  
Author(s):  
Bart G. H. M. Groeneveld ◽  
Sampson Adjokatse ◽  
Olga Nazarenko ◽  
Hong-Hua Fang ◽  
Graeme R. Blake ◽  
...  
Keyword(s):  
Thin Films ◽  
Single Crystals ◽  
Phase Purity ◽  
Stable Cesium ◽  
Halide Perovskites ◽  
Lead Halide

Luminescence spectroscopy of lead-halide perovskites: materials properties and application as photovoltaic devices

2017 ◽  
Vol 5 (14) ◽  
pp. 3427-3437 ◽  
Author(s):  
Yoshihiko Kanemitsu
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Solar Cell ◽  
Single Crystals ◽  
Luminescence Spectroscopy ◽  
Photovoltaic Devices ◽  
Materials Properties ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Lead Halide

This review summarizes the optical properties of lead-halide-perovskite thin films, single crystals, and solar-cell devices.

scholarly journals Comment on “ferroelectricity-free lead halide perovskites” by A. Gómez, Q. Wang, A. R. Goñi, M. Campoy-Quiles and A. Abate, Energy Environ. Sci., 2019, 12, 2537

2020 ◽  
Vol 13 (6) ◽  
pp. 1888-1891
Author(s):  
Alexander Colsmann ◽  
Tobias Leonhard ◽  
Alexander D. Schulz ◽  
Holger Röhm
Keyword(s):  
Thin Films ◽  
Metal Halide ◽  
Organic Metal ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Lead Halide ◽  
Energy Environ

This comment analyzes pitfalls when investigating piezoresponse and ferroelectricity in organic-metal halide perovskite thin films.

A study on the effects of mixed organic cations on the structure and properties in lead halide perovskites

2020 ◽  
Vol 22 (5) ◽  
pp. 3105-3111 ◽  
Author(s):  
Chao Wu ◽  
Daoyou Guo ◽  
Peigang Li ◽  
Shunli Wang ◽  
Aiping Liu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Single Crystals ◽  
Electrical Transport ◽  
Organic Cation ◽  
Organic Cations ◽  
Structure And Properties ◽  
Electrical Transport Properties ◽  
Halide Perovskites ◽  
A Site ◽  
Lead Halide

Four types of organic cation-mixed single crystals were successfully synthesized by partially substituting A site cations to investigate the effect of organic cations on structure, optical features, thermal stability, and electrical transport properties.

scholarly journals Interaction of light with lead halide perovskites: A review

2019 ◽  
Vol 2 (2) ◽  
pp. 67
Author(s):  
Zhiya Dang ◽  
Duc Anh Dinh
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Light Illumination ◽  
Low Light ◽  
Practical Applications ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
First Time ◽  
Lead Halide ◽  
Sample Environment

Lead halide perovskites are the new rising generation of semiconductor materials due to their unique optical and electrical properties. The investigation of the interaction of halide perovskites and light is a key issue not only for understanding their photophysics but also for practical applications. Hence, tremendous efforts have been devoted to this topic and brunch into two: (i) decomposition of the halide perovskites thin films under light illumination; and (ii) influence of light soaking on their photoluminescence (PL) properties. In this review, we for the first time thoroughly compare the illumination conditions and the sample environment to correlate the PL changes and decomposition of perovskite under light illumination. In the case of vacuum and dry nitrogen, PL of the halide perovskite (MAPbI3–xClx, MAPbBr3–xClx, MAPbI3) thin films decreases due to the defects induced by light illumination, and under high excitations, the thin film even decomposes. In the presence of oxygen or moisture, light induces the PL enhancement of halide perovskite (MAPbI3) thin films at low light illumination, while increasing the excitation, which causes the PL to quench and perovskite thin film to decompose. In the case of mixed halide perovskite ((MA)Pb(BrxI1-x)3) light induces reversible segregation of Br domains and I domains. 

scholarly journals Two-Step Synthesis of Bismuth-Based Hybrid Halide Perovskite Thin-Films

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7827
Author(s):  
Vanira Trifiletti ◽  
Sally Luong ◽  
Giorgio Tseberlidis ◽  
Stefania Riva ◽  
Eugenio S. S. Galindez ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Good Alternative ◽  
Bismuth Iodide ◽  
Earth Abundant ◽  
Low Toxicity ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Scalable Methods ◽  
Lead Halide

Lead halide perovskites have been revolutionary in the last decade in many optoelectronic sectors. Their bismuth-based counterparts have been considered a good alternative thanks to their composition of earth-abundant elements, good chemical stability, and low toxicity. Moreover, their electronic structure is in a quasi-zero-dimensional (0D) configuration, and they have recently been explored for use beyond optoelectronics. A significant limitation in applying thin-film technology is represented by the difficulty of synthesizing compact layers with easily scalable methods. Here, the engineering of a two-step synthesis in an air of methylammonium bismuth iodide compact thin films is reported. The critical steps of the process have been highlighted so that the procedure can be adapted to different substrates and application areas.

Detection of gamma photons using solution-grown single crystals of hybrid lead halide perovskites

2016 ◽  
Vol 10 (9) ◽  
pp. 585-589 ◽  
Author(s):  
Sergii Yakunin ◽  
Dmitry N. Dirin ◽  
Yevhen Shynkarenko ◽  
Viktoriia Morad ◽  
Ihor Cherniukh ◽  
...  
Keyword(s):  
Single Crystals ◽  
Halide Perovskites ◽  
Lead Halide

scholarly journals Strain-activated light-induced halide segregation in mixed-halide perovskite solids

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Yicheng Zhao ◽  
Peng Miao ◽  
Jack Elia ◽  
Huiying Hu ◽  
Xiaoxia Wang ◽  
...  
Keyword(s):  
Thin Films ◽  
Single Crystals ◽  
Scanning Probe Microscopy ◽  
Strain Distribution ◽  
Scanning Probe ◽  
Uniaxial Pressure ◽  
Free Standing ◽  
Polycrystalline Thin Films ◽  
Halide Perovskites ◽  
Halide Perovskite

AbstractLight-induced halide segregation limits the bandgap tunability of mixed-halide perovskites for tandem photovoltaics. Here we report that light-induced halide segregation is strain-activated in MAPb(I1−xBrx)3 with Br concentration below approximately 50%, while it is intrinsic for Br concentration over approximately 50%. Free-standing single crystals of CH3NH3Pb(I0.65Br0.35)3 (35%Br) do not show halide segregation until uniaxial pressure is applied. Besides, 35%Br single crystals grown on lattice-mismatched substrates (e.g. single-crystal CaF2) show inhomogeneous segregation due to heterogenous strain distribution. Through scanning probe microscopy, the above findings are successfully translated to polycrystalline thin films. For 35%Br thin films, halide segregation selectively occurs at grain boundaries due to localized strain at the boundaries; yet for 65%Br films, halide segregation occurs in the whole layer. We close by demonstrating that only the strain-activated halide segregation (35%Br/45%Br thin films) could be suppressed if the strain is properly released via additives (e.g. KI) or ideal substrates (e.g. SiO2).

scholarly journals Defect tolerant device geometries for lead-halide perovskites

2021 ◽  
Author(s):  
Basita Das ◽  
Zhifa Liu ◽  
Irene Aguilera ◽  
Uwe Rau ◽  
Thomas Kirchartz
Keyword(s):  
Thin Films ◽  
Defect Tolerance ◽  
Solution Processed ◽  
Radiative Lifetimes ◽  
Polycrystalline Thin Films ◽  
Halide Perovskites ◽  
Lead Halide

The term defect tolerance is widely used in literature to describe materials such as lead-halides perovskites, where solution-processed polycrystalline thin films exhibit long non-radiative lifetimes of microseconds or longer. Studies...

Reflectivity Effects on Pump–Probe Spectra of Lead Halide Perovskites: Comparing Thin Films versus Nanocrystals

ACS Nano ◽  
2018 ◽  
Vol 12 (6) ◽  
pp. 5719-5725 ◽  
Author(s):  
Tufan Ghosh ◽  
Sigalit Aharon ◽  
Adva Shpatz ◽  
Lioz Etgar ◽  
Sanford Ruhman
Keyword(s):  
Thin Films ◽  
Pump Probe ◽  
Halide Perovskites ◽  
Lead Halide

scholarly journals Single crystals of caesium formamidinium lead halide perovskites: solution growth and gamma dosimetry

2017 ◽  
Vol 9 (4) ◽  
pp. e373-e373 ◽  
Author(s):  
Olga Nazarenko ◽  
Sergii Yakunin ◽  
Viktoriia Morad ◽  
Ihor Cherniukh ◽  
Maksym V Kovalenko
Keyword(s):  
Single Crystals ◽  
Solution Growth ◽  
Halide Perovskites ◽  
Lead Halide
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