Understanding the temperature-dependent charge transport, structural variation and photoluminescent properties in methylammonium lead halide perovskite single crystals

2018 ◽  
Vol 6 (24) ◽  
pp. 6556-6564 ◽  
Author(s):  
Jiyu Zhou ◽  
Na Lei ◽  
Huiqiong Zhou ◽  
Yuan Zhang ◽  
Zhiyong Tang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Charge Transport ◽  
Single Crystals ◽  
Structural Variation ◽  
Orthorhombic Phase ◽  
Temperature Dependent ◽  
Halide Perovskite ◽  
Lead Halide

Temperature dependent XRD illustrates a tetragonal to orthorhombic phase transition around 150 K in methylammonium lead halide perovskite single crystals.

Mixed Dimethylammonium/Methylammonium Lead Halide Perovskite Single Crystals for Improved Structural Stability and Enhanced Photodetection

2021 ◽  
pp. 2106160
Author(s):  
Aniruddha Ray ◽  
Beatriz Martín‐García ◽  
Anna Moliterni ◽  
Nicola Casati ◽  
Karunakara Moorthy Boopathi ◽  
...  
Keyword(s):  
Single Crystals ◽  
Structural Stability ◽  
Halide Perovskite ◽  
Lead Halide

Temperature Driven Phase Transition of Organic-Inorganic Halide Perovskite Single Crystals

2018 ◽  
Vol 73 (11) ◽  
pp. 1729-1734
Author(s):  
Hye Ryung Byun ◽  
Hyo In Kim ◽  
Su Jeong Byun ◽  
Dae Young Park ◽  
Mun Seok Jeong ◽  
...  
Keyword(s):  
Phase Transition ◽  
Single Crystals ◽  
Halide Perovskite

Photoluminescence enhancement and high accuracy patterning of lead halide perovskite single crystals by MeV ion beam irradiation

2020 ◽  
Vol 8 (29) ◽  
pp. 9923-9930 ◽  
Author(s):  
Milan Palei ◽  
M. Motapothula ◽  
Aniruddha Ray ◽  
Ahmed L. Abdelhady ◽  
Luca Lanzano ◽  
...  
Keyword(s):  
Single Crystals ◽  
Ion Irradiation ◽  
Ion Beam ◽  
High Accuracy ◽  
Enhancement Effect ◽  
Beam Irradiation ◽  
Ion Beam Irradiation ◽  
Photoluminescence Enhancement ◽  
Halide Perovskite ◽  
Lead Halide

Using MeV ion irradiation, a PL enhancement effect of MAPbBr3 single crystals is demonstrated.

scholarly journals Investigating the Tetragonal‐to‐Orthorhombic Phase Transition of Methylammonium Lead Iodide Single Crystals by Detailed Photoluminescence Analysis

2020 ◽  
Vol 8 (17) ◽  
pp. 2000455 ◽  
Author(s):  
Konstantin Schötz ◽  
Abdelrahman M. Askar ◽  
Anna Köhler ◽  
Karthik Shankar ◽  
Fabian Panzer
Keyword(s):  
Phase Transition ◽  
Single Crystals ◽  
Orthorhombic Phase ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

scholarly journals A polymer controlled nucleation route towards the generalized growth of organic-inorganic perovskite single crystals

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Lin Ma ◽  
Zhengguang Yan ◽  
Xiaoyuan Zhou ◽  
Yiqun Pi ◽  
Yiping Du ◽  
...  
Keyword(s):  
Single Crystals ◽  
Carrier Lifetime ◽  
Growth Mechanisms ◽  
Crucial Point ◽  
Large Size ◽  
Nucleation And Growth Mechanisms ◽  
Halide Perovskite ◽  
Controlled Nucleation ◽  
Oxygen Groups ◽  
Lead Halide

AbstractRecently, there are significant progresses in the growth of organic-inorganic lead halide perovskite single crystals, however, due to their susceptible nucleation and growth mechanisms and solvent requirements, the efficient and generalized growth for these single crystals is still challenging. Here we report the work towards this target with a polymer-controlled nucleation process for the highly efficient growth of large-size high-quality simple ternary, mixed-cations and mixed-halide perovskite single crystals. Among them, the carrier lifetime of FAPbBr3 single crystals is largely improved to 10199 ns. Mixed MA/FAPbBr3 single crystals are synthesized. The crucial point in this process is suggested to be an appropriate coordinative interaction between polymer oxygen groups and Pb2+, greatly decreasing the nuclei concentrations by as much as 4 orders of magnitudes. This polymer-controlled route would help optimizing the solution-based OIHPs crystal growth and promoting applications of perovskite single crystals.

Temperature and electric field induced phase transition in [110]C-oriented 0.63Pb(Mg1/3Nb2/3)O3–0.37PbTiO3 single crystals

CrystEngComm ◽  
2015 ◽  
Vol 17 (45) ◽  
pp. 8664-8670 ◽  
Author(s):  
Wenhui He ◽  
Qiang Li ◽  
Nengneng Luo ◽  
Yiling Zhang ◽  
Qingfeng Yan
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Light Microscopy ◽  
Single Crystals ◽  
Polarized Light ◽  
Polarized Light Microscopy ◽  
Temperature Dependent ◽  
Dependent Domain

Temperature-dependent domain configurations were studied for both unpoled and poled [110]C-oriented 0.63Pb(Mg1/3Nb2/3)O3–0.37PbTiO3 (PMN–0.37PT) single crystals by polarized light microscopy (PLM).

POLARISED TEMPERATURE DEPENDENT XANES STUDY OF SUPERCONDUCTING La2-xSrxCuO4-y UNDER- AND OVER-DOPED SINGLE CRYSTALS

2002 ◽  
Vol 16 (09) ◽  
pp. 1327-1339 ◽  
Author(s):  
C. CONCHA ◽  
J. GARCIA ◽  
J. BLASCO ◽  
K. B. GARG ◽  
R. K. SINGHAL ◽  
...  
Keyword(s):  
Phase Transition ◽  
Temperature Dependence ◽  
Single Crystals ◽  
The Other ◽  
Planar Geometry ◽  
Temperature Dependent ◽  
Characteristic Temperatures ◽  
Square Planar ◽  
Planar Systems ◽  
Made In

High resolution XANES measurements have been made at the CuK-absorption edge on two La 2-x Sr x CuO 4-y single crystals; one under-doped (x = 0.13) and the other over-doped (x = 0.19). These measurements have been made in E//ab and E//c directions at several temperatures to compare the doping, orientation and temperature dependence in their behaviour. Broadly speaking, their XANES spectra resemble the typical one from a crystal with square-planar geometry and the various fine structure features assigned to the possible transitions they arise due to, particularly in terms of the fact that the 4p band in Cu splits into 4p(π) and 4p(σ) components in these square-planar systems. However, the temperature dependence of the various features in the spectra from the two crystals appear to be opposite in nature and exhibit some characteristic temperatures at which the trend seems to reverse. All the experimental results and their implication are discussed and a possibility of phase transition of these systems at lower temperatures is hinted at.

scholarly journals Mixed-Solvent Polarity-Assisted Phase Transition of Cesium Lead Halide Perovskite Nanocrystals with Improved Stability at Room Temperature

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1537 ◽  
Author(s):  
Rui Yun ◽  
Li Luo ◽  
Jingqi He ◽  
Jiaxi Wang ◽  
Xiaofen Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Surface Defects ◽  
Defect Density ◽  
Solvent Polarity ◽  
Electrical Performance ◽  
Ammonium Bromide ◽  
Perovskite Nanocrystals ◽  
Improved Stability ◽  
Halide Perovskite ◽  
Lead Halide

Cesium lead halide perovskite nanocrystals (NCs) have attracted enormous interest in light-emitting diode, photodetector and low-threshold lasing application in terms of their unique optical and electrical performance. However, little attention has been paid to other structures associated with CsPbBr3, such as CsPb2Br5. Herein, we realize a facile method to prepare dual-phase NCs with improved stability against polar solvents by replacing conventional oleylamine with cetyltrimethyl ammonium bromide (CTAB) in the reprecipitation process. The growth of NCs can be regulated with different ratios of toluene and ethanol depending on solvent polarity, which not only obtains NCs with different sizes and morphologies, but also controls phase transition between orthorhombic CsPbBr3 and tetragonal CsPb2Br5. The photoluminescence (PL) and defect density calculated exhibit considerable solvent polarity dependence, which is ascribed to solvent polarity affecting the ability of CTAB to passivate surface defects and improve stoichiometry in the system. This new synthetic method of perovskite material will be helpful for further studies in the field of lighting and detectors.

Ion Migrations in Lead Halide Perovskite Single Crystals with Different Halide Components

2020 ◽  
Vol 257 (6) ◽  
pp. 1900784 ◽  
Author(s):  
Xin Wang ◽  
Yuwei Li ◽  
Yubing Xu ◽  
Yuzhu Pan ◽  
Yao Wu ◽  
...  
Keyword(s):  
Single Crystals ◽  
Halide Perovskite ◽  
Lead Halide
Sign in / Sign up

Export Citation Format

Share Document