Improved ferroelectric and photovoltaic properties of BiMnO3 modified lead-free K0.5Na0.5NbO3 solid-solution films

2017 ◽  
Vol 111 (25) ◽  
pp. 253901 ◽  
Author(s):  
Yizhu Sun ◽  
Fei Guo ◽  
Jieyu Chen ◽  
Shifeng Zhao
Keyword(s):  
Solid Solution ◽  
Lead Free ◽  
Photovoltaic Properties

scholarly journals A monoclinic-tetragonal ferroelectric phase transition in lead-free (K0.5Na0.5)NbO3-x%LiNbO3 solid solution

2012 ◽  
Vol 111 (10) ◽  
pp. 103503 ◽  
Author(s):  
Wenwei Ge ◽  
Yang Ren ◽  
Jialiang Zhang ◽  
Christopher P. Devreugd ◽  
Jiefang Li ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid Solution ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Lead Free

Multiferroic properties of Bi0.5K0.5TiO3–BiFe1−xCoxO3 (0 ≤ x ≤ 0.2) solid solution

RSC Advances ◽  
2015 ◽  
Vol 5 (126) ◽  
pp. 104210-104215 ◽  
Author(s):  
X. Z. Zuo ◽  
J. Yang ◽  
B. Yuan ◽  
X. C. Kan ◽  
Lin Zu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Pechini Method ◽  
Ferroelectric Properties ◽  
Lead Free ◽  
Multiferroic Properties ◽  
Modified Pechini Method

We have successfully prepared a binary lead-free solid-solution of Bi0.5K0.5TiO3–BiFe1−xCoxO3 using a modified Pechini method and investigated the magnetic and ferroelectric properties of Bi0.5K0.5TiO3–BiFe1−xCoxO3 (0 ≤ x ≤ 0.2).

Effect of Bi2O3 Addition on the Microstructure and Electrical Properties of Lead-Free (Na0.5K0.5)NbO3-Bi0.5(Na0.93K0.07)0.5TiO3 Ceramics

2013 ◽  
Vol 479-480 ◽  
pp. 3-7
Author(s):  
Chun Huy Wang
Keyword(s):  
Solid Solution ◽  
Electrical Properties ◽  
Electromechanical Coupling ◽  
Piezoelectric Properties ◽  
Lead Free ◽  
Coupling Coefficients ◽  
Electromechanical Transducer ◽  
Lead Free Ceramics ◽  
Thickness Mode ◽  
Planar Mode

In the present study, various quantities of Bi2O3were added into 0.98(Na0.5K0.5)NbO3-0.02Bi(Na0.93K0.07)TiO3(0.98NKN-0.02BNKT) ceramics. It was found that 0.98NKN-0.02BNKTwith the addition of 0~0.5 wt.% Bi2O3exhibit relatively good piezoelectric properties. For 0.98NKN-0.02BNKT ceramics, the electromechanical coupling coefficients of the planar modekpand the thickness modektreach 0.40 and 0.47,respectively. For 0.98NKN-0.02BNKT ceramics with the addition of 0.3 wt.% Bi2O3, the electromechanical coupling coefficients ofthe planar modekpand the thickness modektreach 0.50 and 0.53, respectively. It is obvious that 0.98NKN-0.02BNKT solid solution ceramics by adding low quantities of Bi2O3is one of the promising lead-free ceramics for electromechanical transducer applications.

scholarly journals Optimisation of functional properties in lead-free BiFeO3–BaTiO3 ceramics through La3+ substitution strategy

2018 ◽  
Vol 6 (13) ◽  
pp. 5378-5397 ◽  
Author(s):  
Ilkan Calisir ◽  
Abdulkarim. A. Amirov ◽  
Annette K. Kleppe ◽  
David A. Hall
Keyword(s):  
Solid Solution ◽  
Thermal Treatment ◽  
Functional Properties ◽  
Lead Free ◽  
Chemical Homogeneity ◽  
La Substitution

The structure and key functional properties of a promising lead-free solid solution, BiFeO3–BaTiO3, have been optimised by controlling chemical homogeneity via La-substitution strategies and thermal treatment.

Effect of BaSnO3 on structural and electrical properties of lead free Na0.5Bi0.5TiO3 ceramic solid solution

2021 ◽  
Author(s):  
S Sasikumar ◽  
Huiqing Fan ◽  
Weijia Wang ◽  
T K Thirumalaisamy ◽  
S Saravanakumar ◽  
...  
Keyword(s):  
Solid Solution ◽  
Electrical Properties ◽  
Lead Free ◽  
Structural And Electrical Properties ◽  
Ceramic Solid Solution

Structural, Optical, and Magnetic Properties of Lead-Free Ferroelectric Bi0.5K0.5TiO3 Solid Solution with BiFeO3 Materials

2017 ◽  
Vol 46 (6) ◽  
pp. 3472-3478 ◽  
Author(s):  
Nguyen Hoang Tuan ◽  
Luong Huu Bac ◽  
Le Viet Cuong ◽  
Duong Van Thiet ◽  
Tran Van Tam ◽  
...  
Keyword(s):  
Solid Solution ◽  
Magnetic Properties ◽  
Lead Free ◽  
Optical And Magnetic Properties

scholarly journals Effect of Cl doping amount on the microstructure, photovoltaic properties and ferroelectric properties of Bi-based lead-free perovskite

2019 ◽  
Vol 09 (02) ◽  
pp. 1950013 ◽  
Author(s):  
Shilong Zhang ◽  
Ruicheng Xu ◽  
Zhendong Li ◽  
Qianwei Zhang ◽  
Li Cheng ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Ferroelectric Properties ◽  
Lead Toxicity ◽  
Lead Free ◽  
Photoelectric Conversion Efficiency ◽  
Doping Content ◽  
Doping Amount ◽  
Photoelectric Conversion ◽  
Photovoltaic Properties ◽  
Transport Dynamics

Organic–inorganic hybrid perovskites with 3D perovskite structure have gained much attention as light harvesting materials in thin-film photovoltaics. This is because of their outstanding light-absorption characteristics, charge-transport dynamics and their simple processability using lab-scale solution and vapor phase deposition techniques. However, the inherent instability and lead toxicity of lead-based PSCs are the major problems at present. Recent studies have shown that the (CH3NH[Formula: see text]Bi2I9 (MBI) 0D bismuth-based compound can be used as an optical absorption layer in solar cells. In this paper, the (CH3NH[Formula: see text]Bi2I9 was doped with Cl− and a series of (CH3NH[Formula: see text]Bi2I[Formula: see text]Clx films were prepared. The effects of different doping amounts on the microstructure, photovoltaic properties and ferroelectric properties were systematically investigated. Scanning electron microscope (SEM) and Atomic force microscope (AFM) analysis showed that with the increase of doping content, the density of the films increased and the roughness decreased. The photoelectric conversion efficiency of (CH3NH[Formula: see text]Bi2I[Formula: see text]Clx raises with the increase of doping content. For example, the photoelectric conversion efficiency of (CH3NH[Formula: see text]Bi2I3Cl6 is 0.473%. We find that the leakage current descends into the increase in doping content, which may be due to the increase in the film density and the decrease of porosity. These research results have a positive effect on the development of Bi-based lead-free perovskite.

Material Design of Alkaline Niobate Piezoelectric Ceramics

2008 ◽  
Vol 368-372 ◽  
pp. 1879-1882 ◽  
Author(s):  
Kenichi Kakimoto
Keyword(s):  
Solid Solution ◽  
Wide Temperature Range ◽  
Piezoelectric Properties ◽  
Tungsten Bronze ◽  
Material Design ◽  
Research Field ◽  
Lead Free ◽  
Ceramic System ◽  
Research Activity ◽  
Temperature Range

Nb-based systems have been considered to be the most attractive ceramic system in the research field of lead-free piezoceramics, since excellent piezoelectric properties were reported in (Li,Na,K)NbO3-based solid solution (LNKN) systems. This article reviews the characteristic and recent research activity for several kinds of the niobate systems including LiNbO3, NaNbO3, KNbO3, tungsten-bronze niobate. The importance of material design for enhancement of piezoelectric properties and their stability in the wide temperature range is also described for LNKN system.

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