Bi2WO6 Lead-free Ferroelectrics: Microstructure Design, Polar behavior and Photovoltaic Performance

2021 ◽  
Author(s):  
Xiang He ◽  
Chen Chen ◽  
Yunyun Gong ◽  
Huarong Zeng ◽  
Zhiguo Yi
Keyword(s):  
Leakage Current ◽  
Growth Habit ◽  
Photovoltaic Performance ◽  
Ferroelectric Material ◽  
Environmentally Benign ◽  
Lead Free ◽  
Microstructure Design ◽  
Benign Nature ◽  
Large Leakage Current ◽  
Curie Temperatures

Bi2WO6 (BWO) is a promising ferroelectric material because of its high Curie temperatures and environmentally benign nature. However, the mica-like grains growth habit and large leakage current make it difficult...

A (CH 3 NH 3 ) 3 Bi 2 I 9 Perovskite Based on a Two‐Step Deposition Method: Lead‐Free, Highly Stable, and with Enhanced Photovoltaic Performance

2019 ◽  
Vol 6 (4) ◽  
pp. 1192-1198 ◽  
Author(s):  
Khursheed Ahmad ◽  
Shagufi Naz Ansari ◽  
Kaushik Natarajan ◽  
Shaikh M. Mobin
Keyword(s):  
Photovoltaic Performance ◽  
Lead Free ◽  
Deposition Method

Conductive paste assisted interconnection for environmentally benign lead-free ribbons in c-Si PV modules

Solar Energy ◽  
2019 ◽  
Vol 184 ◽  
pp. 273-280 ◽  
Author(s):  
Hyung-Jun Song ◽  
Hee sang Yoon ◽  
Youngchul Ju ◽  
Soo Min Kim ◽  
Woo Gyun Shin ◽  
...  
Keyword(s):  
Environmentally Benign ◽  
Lead Free ◽  
Pv Modules

Lead-free hybrid ferroelectric material based on formamidine: [NH2CHNH2]3Bi2I9

2019 ◽  
Vol 7 (10) ◽  
pp. 3003-3014 ◽  
Author(s):  
Przemysław Szklarz ◽  
Anna Gągor ◽  
Ryszard Jakubas ◽  
Piotr Zieliński ◽  
Anna Piecha-Bisiorek ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Room Temperature ◽  
Ferroelectric Material ◽  
Lead Free ◽  
Ferroelectric Crystals ◽  
Complex Sequences

Novel room-temperature ferroelectric crystals with complex sequences of phase transitions.

Ionic liquid promoted and mediated green preparation of arylbispyranylmethane and pyran derivatives and their hybrid with a pyrimidine nucleoside

2009 ◽  
Vol 2009 (8) ◽  
pp. 473-477 ◽  
Author(s):  
Xinying Zhang ◽  
Yingying Qu ◽  
Xuesen Fan ◽  
Xia Wang ◽  
Jianji Wang
Keyword(s):  
Ionic Liquid ◽  
High Efficiency ◽  
Reaction Medium ◽  
Environmentally Benign ◽  
Pyrimidine Nucleoside ◽  
Reaction Conditions ◽  
Operation Process ◽  
Antiviral Activities ◽  
Benign Nature ◽  
High Yields

The utilisation of an ionic liquid-[bmim][BF4] as both reaction medium and promoter for the reaction between aldehyde and 4-hydroxy-6-methylpyran-2-one is described. Without any added catalyst, this reaction was realised efficiently to give arylbispyranylmethane derivatives in high yields. Alternatively, when this reaction was carried out in the presence of acetic anhydride, fused pyran derivatives were obtained. These two novel procedures have advantages such as an environmentally benign nature, high efficiency, simple operation process and mild reaction conditions. As an application, these procedures were used in the preparation of novel 5-substituted pyrimidine nucleoside derivatives with potential antiviral activities.

scholarly journals Green and efficient three-component synthesis of 4H-pyran catalysed by CuFe 2 O 4 @starch as a magnetically recyclable bionanocatalyst

2020 ◽  
Vol 7 (7) ◽  
pp. 200385
Author(s):  
Maryam Kamalzare ◽  
Mohammad Bayat ◽  
Ali Maleki
Keyword(s):  
Low Cost ◽  
Environmentally Benign ◽  
Pharmaceutical Chemistry ◽  
X Ray Diffraction ◽  
Natural Polymers ◽  
X Ray ◽  
Benign Nature ◽  
Catalytic Behaviour ◽  
Work Up ◽  
Derivatives Of

The development of simple, practical and inexpensive catalysis systems using natural materials is one of the main goals of pharmaceutical chemistry as well as green chemistry. Owing to the ability of easy separation of nanocatalyst, those goals could be approached by applying heterogeneous bionanocatalyst in combination with magnetic nanoparticles. Starch is one of the most abundant natural polymers; therefore, preparing bionanocatalyst from starch is very valuable as starch is largely available and inexpensive. An ecologically benign and efficacious heterogeneous nanocatalyst was prepared based on a biopolymer, and its attributes and morphology were specified by using Fourier transform infrared spectra, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), thermal analysis and vibrating sample magnetometer measurements; followed by studying catalytic behaviour of bionanocomposite in a multicomponent reaction to synthesize of 4H-pyran derivatives. 4H-pyran is extremely valuable in pharmaceutical chemistry, and the development of methods for synthesis of different derivatives of 4H-pyran is momentous. Revealing environmentally benign nature, mild condition, easy work-up, low cost and non-toxicity are some of the advantages of this protocol. Besides, the bionanocomposite was recovered using an external magnetic bar and could be re-used at least six times with no further decrease in its catalytic activity.

An environmentally-benign NaNbO3 based perovskite antiferroelectric alternative to traditional lead-based counterparts

2019 ◽  
Vol 7 (48) ◽  
pp. 15153-15161 ◽  
Author(s):  
Aiwen Xie ◽  
He Qi ◽  
Ruzhong Zuo ◽  
Ao Tian ◽  
Jun Chen ◽  
...  
Keyword(s):  
Phase Transition ◽  
Environmentally Benign ◽  
Lead Free ◽  
Stripe Domain ◽  
Space Group

NaNbO3-based lead-free AFE R-phase ceramics with Pnma space group and nanoscale stripe domain exhibit completely reversible field induced AFE–FE phase transition, featuring a relatively low EA–F of ∼8 kV mm−1 and a large repeatable strain of ∼0.29%.

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