Lead-free double perovskites Cs2InCuCl6 and (CH3NH3)2InCuCl6: electronic, optical, and electrical properties

Nanoscale ◽  
2019 ◽  
Vol 11 (23) ◽  
pp. 11173-11182 ◽  
Author(s):  
Hung Q. Pham ◽  
Russell J. Holmes ◽  
Eray S. Aydil ◽  
Laura Gagliardi
Keyword(s):  
Electrical Properties ◽  
Band Gap ◽  
Lead Free ◽  
Double Perovskites ◽  
Optical And Electrical Properties ◽  
Optoelectronic Applications

Two indium-based double perovskites, Cs2InCuCl6 and (CH3NH3)2InCuCl6, were proposed as promising materials for photovoltaic and optoelectronic applications with a suitable band gap and exceptional optical and electrical properties.

Structural, optical, and electrical properties of vanadium-doped, lead-free BCZT ceramics

2021 ◽  
pp. 159520
Author(s):  
Ritesh Verma ◽  
Ankush Chauhan ◽  
Khalid Mujasam Batoo ◽  
Muhammad Hadi ◽  
Emad H. Raslan ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Lead Free ◽  
Optical And Electrical Properties

Effect of MWCNT addition on the optical band gap of PVA/CS transient biocomposites

2021 ◽  
pp. 002199832110370
Author(s):  
Ömer Bahadır Mergen
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Band Gap ◽  
Optical Band Gap ◽  
Rapid Development ◽  
Measurement Techniques ◽  
Resistivity Measurement ◽  
Optical Parameters ◽  
Optical And Electrical Properties ◽  
Biocomposite Films

In recent years, as a result of increasing environmental concerns, biodegradable materials have gained great attention. With the rapid development of electronic technology, the importance of innovation and development of low-cost, sustainable, transient bioelectronics materials is increasing. In this research, the preparation of Poly(Vinyl Alcohol) (PVA), Chitosan (CS), and Multi-Walled Carbon nanotube (MWCNT) biocomposite films have been described. The solution mixing, ultrasonic mixing, and spin coating techniques were used to prepare the PVA/CS/MWCNT biocomposite thin films. UV–Vis absorption spectroscopy and two-point probe resistivity measurement techniques were used to study the optical and electrical properties of the biocomposite thin films. Optical band gap energies ( Eg) of PVA/CS/MWCNT biocomposites were obtained using the Tauc and Absorbance Spectrum Fitting (ASF) methods. Results obtained with both methods were found to be exactly the same. Experimental results have shown that with increasing MWCNT concentration, electrical conductivity (σ) increases from 1.75x10−16 S to 2.94x10−3 S, and Eg decreases significantly. At the same time, the fundamental optical parameters such as band tail (Urbach) energy ( Eu), refractive index ( n), absorption ( α), and extinction ( k) coefficient of the PVA/CS/MWCNT biocomposites were investigated in the UV-VIS range. The improvement observed in the optical and electrical properties of PVA/CS/MWCNT biocomposite films shows that these composites could be used as bioelectronics materials.

Investigation of Optical and Electrical Properties of Wide Band Gap Materials

1976 ◽  
Author(s):  
Phil Won Yu ◽  
Samuel Faile ◽  
Hans Stocker ◽  
James Schneider
Keyword(s):  
Electrical Properties ◽  
Band Gap ◽  
Wide Band ◽  
Optical And Electrical Properties ◽  
Wide Band Gap

Recent Advances and Optoelectronic Applications of Lead‐Free Halide Double Perovskites

2020 ◽  
Vol 26 (71) ◽  
pp. 16975-16984
Author(s):  
Lei Lu ◽  
Xiong Pan ◽  
Junhua Luo ◽  
Zhihua Sun
Keyword(s):  
Lead Free ◽  
Double Perovskites ◽  
Recent Advances ◽  
Optoelectronic Applications

Growth, optical and electrical properties of pure and Mn-doped Na0.5Bi0.5TiO3 lead-free piezoelectric crystals

2008 ◽  
Vol 462 (1-2) ◽  
pp. 256-261 ◽  
Author(s):  
Wenwei Ge ◽  
Hong Liu ◽  
Xiangyong Zhao ◽  
Weizhuo Zhong ◽  
Xiaoming Pan ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Lead Free ◽  
Optical And Electrical Properties ◽  
Piezoelectric Crystals ◽  
Mn Doped
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