scholarly journals Room-temperature solution synthesis of ZnMn2O4 nanoparticles for advanced electrochemical lithium storage

RSC Advances ◽  
2019 ◽  
Vol 9 (16) ◽  
pp. 9075-9078 ◽  
Author(s):  
Chunhui Wang ◽  
Chunxian Zhou ◽  
Bao Zhang ◽  
Xing Ou ◽  
Liang Cao ◽  
...  
Keyword(s):  
Room Temperature ◽  
Low Cost ◽  
Structure Stability ◽  
Solution Synthesis ◽  
Lithium Storage ◽  
Temperature Solution ◽  
One Step

ZnMn2O4 nanoparticles were fabricated via a low-cost and ecofriendly one-step approach at room temperature. The particles exhibited excellent structure stability and superior lithium storage.

scholarly journals Room-Temperature Solution-Processed 0D/1D Bilayer Electrodes for Translucent CsPbBr3 Perovskite Photovoltaics

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1489
Author(s):  
Bhaskar Parida ◽  
Saemon Yoon ◽  
Dong-Won Kang
Keyword(s):  
Solar Cells ◽  
Indium Tin Oxide ◽  
High Performance ◽  
Room Temperature ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Plasma Damage ◽  
Temperature Solution ◽  
Ito Nanoparticles

Materials and processing of transparent electrodes (TEs) are key factors to creating high-performance translucent perovskite solar cells. To date, sputtered indium tin oxide (ITO) has been a general option for a rear TE of translucent solar cells. However, it requires a rather high cost due to vacuum process and also typically causes plasma damage to the underlying layer. Therefore, we introduced TE based on ITO nanoparticles (ITO-NPs) by solution processing in ambient air without any heat treatment. As it reveals insufficient conductivity, Ag nanowires (Ag-NWs) are additionally coated. The ITO-NPs/Ag-NW (0D/1D) bilayer TE exhibits a better figure of merit than sputtered ITO. After constructing CsPbBr3 perovskite solar cells, the device with 0D/1D TE offers similar average visible transmission with the cells with sputtered ITO. More interestingly, the power conversion efficiency of 0D/1D TE device was 5.64%, which outperforms the cell (4.14%) made with sputtered-ITO. These impressive findings could open up a new pathway for the development of low-cost, translucent solar cells with quick processing under ambient air at room temperature.

Room Temperature Solution Synthesis of Alkyl-Capped Tetrahedral Shaped Silicon Nanocrystals

2002 ◽  
Vol 124 (7) ◽  
pp. 1150-1151 ◽  
Author(s):  
Richard K. Baldwin ◽  
Katherine A. Pettigrew ◽  
Jayne C. Garno ◽  
Phillip P. Power ◽  
Gang-yu Liu ◽  
...  
Keyword(s):  
Silicon Nanocrystals ◽  
Room Temperature ◽  
Solution Synthesis ◽  
Temperature Solution

Low-cost Micro- and Nano-structures in Porous Nanomaterials Realized by Direct Imprinting of Porous Substrates

2011 ◽  
Vol 1340 ◽  
Author(s):  
Judson D. Ryckman ◽  
Marco Liscidini ◽  
J. E. Sipe ◽  
S. M. Weiss
Keyword(s):  
Room Temperature ◽  
Low Cost ◽  
Substrate Material ◽  
Nano Structures ◽  
One Step ◽  
Temperature And Pressure ◽  
Feature Resolution ◽  
Porous Nanomaterials ◽  
Very High ◽  
Porous Substrates

ABSTRACTWe present a simple one-step methodology for direct structuring of porous nanomaterials on the micro- and nano-scale. Our technique, direct imprinting of porous substrates (DIPS), relies on the application of a pre-patterned and reusable stamp to directly imprint porous substrates. DIPS is performed at room temperature and pressure in less than one minute, and circumvents the conventional requirement for resist processing and etching procedures. It is shown that arbitrarily shaped patterns and structures can be transferred to porous nanomaterials with a very high (sub-100nm) feature resolution that is primarily limited by the pore dimensions of the substrate material. DIPS is demonstrated on a wide variety of porous nanomaterials including metals, semiconductors, and insulators. Furthermore, DIPS can be utilized to locally modify material properties including pore dimensions, density, dielectric function, and surface roughness. Lastly, example structures fabricated by DIPS are discussed for their relevance to important applications ranging from drug delivery and imaging, to solar energy conversion, and biosensing.

Room-temperature solution synthesis of Bi2O3nanowires for gas sensing application

2009 ◽  
Vol 20 (49) ◽  
pp. 495501 ◽  
Author(s):  
Xinglong Gou ◽  
Rong Li ◽  
Guoxiu Wang ◽  
Zhixin Chen ◽  
David Wexler
Keyword(s):  
Room Temperature ◽  
Gas Sensing ◽  
Solution Synthesis ◽  
Temperature Solution ◽  
Sensing Application

scholarly journals Well-Dispersed ZnFe2O4 Nanoparticles onto Graphene as Superior Anode Materials for Lithium Ion Batteries

Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 304 ◽  
Author(s):  
Yiseul Park ◽  
Misol Oh ◽  
Jae Kim
Keyword(s):  
Particle Size ◽  
Anode Materials ◽  
Low Cost ◽  
Lithium Ion ◽  
Cycle Performance ◽  
Lithium Storage ◽  
Graphene Composite ◽  
Graphene Sample ◽  
Graphene Flakes ◽  
One Step

We prepared well-dispersed ZnFe2O4 (ZFO) nanoparticles on a graphene sheet by a facile one-step hydrothermal method using glucose as a novel linker agent and low-cost graphene flake. It was found that the glucose linkage on graphene not only prevented the aggregation of ZFO particles, but also induced the exfoliation of graphene flakes. The addition of glucose during the synthesis made surface linkages on the graphene surface, and it reacted with ZFO precursors, resulting in the well-dispersed ZFO nanoparticles/graphene composite. Furthermore, the size distribution of the resultant composite particles was also shifted to the smaller particle size compared to the composite prepared without glucose. The newly prepared ZFO/graphene composite provided a higher lithium storage capability and cycle performance compared to the ZFO/graphene sample which was prepared without glucose. The good dispersion of ZFO nanoparticles on graphene and the small particle size of the composite led to markedly improved electrochemical performance. Its reversible discharge capacity was 766 mAh g−1 at 1 A g−1, and it also maintained as 469 mAh g−1 at 6 A g−1.

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