Thermochromism to tune the optical bandgap of a lead-free perovskite-type hybrid semiconductor for efficiently enhancing photocurrent generation

Here we report a new lead-free hybrid semiconductor material, (C16H20N2)SbBr5, in which thermochromism results in a wide tunable bandgap and superior photoelectric properties.

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[C5H12N]CdCl3: an ABX3 perovskite-type semiconducting switchable dielectric phase transition material

Inorganic Chemistry Frontiers ◽

10.1039/c7qi00301c ◽

2017 ◽

Vol 4 (9) ◽

pp. 1485-1492 ◽

Cited By ~ 26

Author(s):

Aurang Zeb ◽

Zhihua Sun ◽

Tariq Khan ◽

Muhammad Adnan Asghar ◽

Zhenyue Wu ◽

...

Keyword(s):

Phase Transition ◽

Thermal Stability ◽

Dielectric Properties ◽

High Thermal Stability ◽

Lead Free ◽

Dielectric Phase ◽

Perovskite Type

We report a new lead-free ABX3 perovskite-type hybrid, which displays high thermal stability, semiconducting and striking switchable dielectric properties.

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Optical tunability of lead free double perovskite Cs2AgInCl6via composition variation

New Journal of Chemistry ◽

10.1039/d0nj03642k ◽

2020 ◽

Vol 44 (43) ◽

pp. 18656-18661

Author(s):

Bidisha Nath ◽

Basudev Pradhan ◽

Subhendu K. Panda

Keyword(s):

Double Perovskite ◽

Lead Free ◽

Luminescence Properties ◽

Tunable Bandgap ◽

Composition Variation

The tunable bandgap and luminescence properties of lead free double perovskite Cs2AgInCl6 are achieved through variable cation and halide composition.

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Low-dimensional bismuth(III) iodide hybrid material with high activity for the fast removal of rhodamine B

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229618016030 ◽

2018 ◽

Vol 74 (12) ◽

pp. 1744-1749 ◽

Cited By ~ 1

Author(s):

Wei-Jun Chen ◽

Kai-Bin Chu ◽

Jun-Ling Song

Keyword(s):

Solvothermal Method ◽

Waste Water Treatment ◽

Lead Free ◽

Tetrameric Structure ◽

Distorted Octahedra ◽

Perovskite Crystal ◽

Low Dimensional ◽

Perovskite Type ◽

Degradation Ability ◽

Fast Removal

Organic–inorganic hybrid lead-based perovskite crystal materials have been widely studied due to their excellent optical–electronic properties. However, the toxicity of lead limits their widespread use. Here, a lead-free perovskite-type compound, tetrakis(1,2,3-trimethylimidazolium) di-μ3-iodido-tetra-μ2-iodido-decaiodidotetrabismuth(III), (C6H11N2)4[Bi4I16], has been successfully synthesized by a simple solvothermal method. It exhibits a zero-dimensional (0D) tetrameric structure, including edge-sharing [Bi4I16]4− distorted octahedra. The band gap of 2.0 eV is close to that of (NH4)3[Bi2I9]. Degradation ability measurements were performed to examine the potential application of this material as an alternative for waste-water treatment.

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Evaluation of covalency of ions in lead-free perovskite-type dielectric oxides

AIP Advances ◽

10.1063/1.5000584 ◽

2017 ◽

Vol 7 (10) ◽

pp. 105016 ◽

Cited By ~ 1

Author(s):

Naohisa Takesue ◽

Kazuya Ishibashi ◽

Kazuki Asakura

Keyword(s):

Lead Free ◽

Perovskite Type

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The structure and optical properties of lead-free transparent KNLTN-La0.01 ceramics prepared by conventional sintering technique

Materials Science-Poland ◽

10.2478/s13536-014-0226-9 ◽

2014 ◽

Vol 32 (4) ◽

pp. 597-603

Author(s):

W. Yang ◽

H. Xiu ◽

Y. Xiong ◽

J. Wang ◽

C. Yuan ◽

...

Keyword(s):

Optical Properties ◽

Dispersion Model ◽

Point Group ◽

Lead Free ◽

Dense Microstructure ◽

Abo3 Perovskite ◽

Conventional Sintering ◽

Significant Wavelength ◽

Perovskite Type ◽

Better Than

Abstract(Na0.52K0.44Li0.04)0.97La0.01Ta0.20Nb0.80O3 (KNLTN-La0.01) lead-free subtransparent ceramics was prepared by a conventional sintering technique. The structure and the optical properties of the ceramics were investigated. The room temperature crystallographic indexing revealed the ABO3 perovskite type, tetragonal phase and P4mm point group in the ceramics. The surface and fractured surface SEM micrographs showed a dense microstructure with few micropores in KNLTN-La0.01 ceramics, which was obviously better than for the pure KNLTN ceramics. The refractive indexes of the films were investigated by an ellipsometer and the results show that the KNLTN-La0.01 subtransparent ceramics reveals significant wavelength dependent dispersion. The refractive index ranges from 2.14 to 2.06 with the wavelength increase from 380 nm to 900 nm. The dispersive behavior was analyzed by three parameters of Cauchy dispersion model and the values of the parameters A, B and C are 2.0610±0.0005, 0.0054±0.0003 and 0.00069±0.00004, respectively.

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