Photovoltaic materials: Cu 2 ZnSnS 4 (CZTS) nanocrystals synthesized via industrially scalable, green, one‐step mechanochemical process

2019 ◽  
Vol 27 (9) ◽  
pp. 798-811 ◽  
Author(s):  
Peter Baláž ◽  
Michal Hegedus ◽  
Matej Baláž ◽  
Nina Daneu ◽  
Peter Siffalovic ◽  
...  
Keyword(s):  
Mechanochemical Process ◽  
Photovoltaic Materials ◽  
One Step ◽  
Czts Nanocrystals

Facile one-step mechanochemical synthesis of [Cu(tu)]Cl·1/2H2O nanobelts for high-performance supercapacitor

RSC Advances ◽  
2015 ◽  
Vol 5 (48) ◽  
pp. 38527-38532 ◽  
Author(s):  
Di Guo ◽  
Hongxu Guo ◽  
Yingchang Ke ◽  
Dongfang Wang ◽  
Jianhua Chen ◽  
...  
Keyword(s):  
Mechanochemical Synthesis ◽  
Electrode Material ◽  
High Performance ◽  
Mechanochemical Process ◽  
One Step ◽  
First Time

A facile one-step mechanochemical process from CuCl2·2H2O and thiourea to fabricate novel [Cu(tu)]Cl·1/2H2O nanobelts has been observed for the first time, and the nanobelts were used as an electrode material for a supercapacitor.

scholarly journals Using one-step facile and solvent-free mechanochemical process to synthesize photoactive Fe2O3-TiO2 for treating industrial wastewater

2017 ◽  
Vol 695 ◽  
pp. 496-507 ◽  
Author(s):  
Wennie Subramonian ◽  
Ta Yeong Wu ◽  
Siang-Piao Chai
Keyword(s):  
Industrial Wastewater ◽  
Solvent Free ◽  
Mechanochemical Process ◽  
One Step

Batch synthesis of polyoxometalate-based phosphonium compounds by one-step room-temperature mechanochemical process, and their morphology-dependent antibacterial activities

2017 ◽  
Vol 71 (7) ◽  
pp. 1323-1329 ◽  
Author(s):  
Shuyu Hu ◽  
Cuncheng Ma ◽  
Fangyi Zhan ◽  
Yali Cao ◽  
Pengfei Hu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Antibacterial Activities ◽  
Mechanochemical Process ◽  
One Step

Efficient, One-Step Mechanochemical Process for the Synthesis of ZnO Nanoparticles

2008 ◽  
Vol 47 (4) ◽  
pp. 1095-1101 ◽  
Author(s):  
Jun Lu ◽  
Ka M. Ng ◽  
Shihe Yang
Keyword(s):  
Zno Nanoparticles ◽  
Mechanochemical Process ◽  
One Step

scholarly journals One-step synthesis of high quality kesterite Cu2ZnSnS4 nanocrystals – a hydrothermal approach

2014 ◽  
Vol 5 ◽  
pp. 438-446 ◽  
Author(s):  
Vincent Tiing Tiong ◽  
John Bell ◽  
Hongxia Wang
Keyword(s):  
Systematic Approach ◽  
Hydrothermal Reaction ◽  
Initial Reaction ◽  
Hydrothermal Route ◽  
Uniform Size ◽  
Strong Light ◽  
One Step ◽  
Hydrothermal Approach ◽  
Czts Nanocrystals

The present work demonstrates a systematic approach for the synthesis of pure kesterite-phase Cu2ZnSnS4 (CZTS) nanocrystals with a uniform size distribution by a one-step, thioglycolic acid (TGA)-assisted hydrothermal route. The formation mechanism and the role of TGA in the formation of CZTS compound were thoroughly studied. It has been found that TGA interacted with Cu2+ to form Cu+ at the initial reaction stage and controlled the crystal-growth of CZTS nanocrystals during the hydrothermal reaction. The consequence of the reduction of Cu2+ to Cu+ led to the formation Cu2− x S nuclei, which acted as the crystal framework for the formation of CZTS compound. CZTS was formed by the diffusion of Zn2+ and Sn4+ cations to the lattice of Cu2− x S during the hydrothermal reaction. The as-synthesized CZTS nanocrystals exhibited strong light absorption over the range of wavelength beyond 1000 nm. The band gap of the material was determined to be 1.51 eV, which is optimal for application in photoelectric energy conversion device.

scholarly journals One-Step Solution Deposition of Antimony Selenoiodide Films via Precursor Engineering for Lead-Free Solar Cell Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3206
Author(s):  
Yong Chan Choi ◽  
Kang-Won Jung
Keyword(s):  
Heating Temperature ◽  
Precursor Solution ◽  
Lead Free ◽  
Molar Ratio ◽  
Solution Deposition ◽  
Photovoltaic Materials ◽  
Phase Precursor ◽  
One Step ◽  
Film Fabrication ◽  
Precursor Engineering

Ternary chalcohalides are promising lead-free photovoltaic materials with excellent optoelectronic properties. We propose a simple one-step solution-phase precursor-engineering method for antimony selenoiodide (SbSeI) film fabrication. SbSeI films were fabricated by spin-coating the precursor solution, and heating. Various precursor solutions were synthesized by adjusting the molar ratio of two solutions based on SbCl3-selenourea and SbI3. The results suggest that both the molar ratio and the heating temperature play key roles in film phase and morphology. Nanostructured SbSeI films with a high crystallinity were obtained at a molar ratio of 1:1.5 and a temperature of 150 °C. The proposed method could be also used to fabricate (Bi,Sb)SeI.

An Interactive Minicomputer Program for the Indexing and Simulation of Electron Diffraction Patterns

1976 ◽  
Vol 34 ◽  
pp. 542-543
Author(s):  
R.P. Goehner ◽  
W.T. Hatfield ◽  
Prakash Rao
Keyword(s):  
Electron Diffraction ◽  
Real Time ◽  
Pattern Analysis ◽  
Flow Diagram ◽  
Hard Copy ◽  
Time Analysis ◽  
Real Time Analysis ◽  
Transmission Electron ◽  
One Step ◽  
Diffraction Patterns

Computer programs are now available in various laboratories for the indexing and simulation of transmission electron diffraction patterns. Although these programs address themselves to the solution of various aspects of the indexing and simulation process, the ultimate goal is to perform real time diffraction pattern analysis directly off of the imaging screen of the transmission electron microscope. The program to be described in this paper represents one step prior to real time analysis. It involves the combination of two programs, described in an earlier paper(l), into a single program for use on an interactive basis with a minicomputer. In our case, the minicomputer is an INTERDATA 70 equipped with a Tektronix 4010-1 graphical display terminal and hard copy unit.A simplified flow diagram of the combined program, written in Fortran IV, is shown in Figure 1. It consists of two programs INDEX and TEDP which index and simulate electron diffraction patterns respectively. The user has the option of choosing either the indexing or simulating aspects of the combined program.

Nutrient-regulated gene expression in eukaryotes

2006 ◽  
Vol 73 ◽  
pp. 85-96 ◽  
Author(s):  
Richard J. Reece ◽  
Laila Beynon ◽  
Stacey Holden ◽  
Amanda D. Hughes ◽  
Karine Rébora ◽  
...  
Keyword(s):  
Gene Expression ◽  
Rna Polymerase ◽  
Rna Polymerase Ii ◽  
Transcriptional Control ◽  
Direct Interaction ◽  
Signalling Pathways ◽  
A Cell ◽  
One Step ◽  
Higher Eukaryotes ◽  
Regulated Gene Expression

The recognition of changes in environmental conditions, and the ability to adapt to these changes, is essential for the viability of cells. There are numerous well characterized systems by which the presence or absence of an individual metabolite may be recognized by a cell. However, the recognition of a metabolite is just one step in a process that often results in changes in the expression of whole sets of genes required to respond to that metabolite. In higher eukaryotes, the signalling pathway between metabolite recognition and transcriptional control can be complex. Recent evidence from the relatively simple eukaryote yeast suggests that complex signalling pathways may be circumvented through the direct interaction between individual metabolites and regulators of RNA polymerase II-mediated transcription. Biochemical and structural analyses are beginning to unravel these elegant genetic control elements.

CAD: One Step Forward, One Step Back

2010 ◽  
Vol 43 (18) ◽  
pp. 16
Author(s):  
MATTHEW R.G. TAYLOR
Keyword(s):  
One Step

One-Step Synthesis and Magnetic Phase Transformation of Ln-TM-B Alloy by Chemical Reduction

2007 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
C.W. Kim ◽  
Y.H. Kim ◽  
H.G. Cha ◽  
D.K. Lee ◽  
Y.S. Kang
Keyword(s):  
Phase Transformation ◽  
Magnetic Phase ◽  
Chemical Reduction ◽  
One Step
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