Grain-size controlled thermoelectric efficiency in LaCoO3 and La0.9Sr0.1CoO3 system

2017 ◽  
Author(s):  
Subhrangsu Taran ◽  
H. D. Yang
Keyword(s):  
Grain Size ◽  
Thermoelectric Efficiency ◽  
Size Controlled

Impact of grain size on the optoelectronic performance of 2D Ruddlesden–Popper perovskite-based photodetectors

2021 ◽  
Vol 9 (1) ◽  
pp. 110-116
Author(s):  
Bohee Hwang ◽  
Youngjun Park ◽  
Jang-Sik Lee
Keyword(s):  
Grain Size ◽  
High Performance ◽  
Solvent Engineering ◽  
Size Controlled

This paper presents the synthesis of grain size-controlled 2D perovskite films for high-performance photodetectors by combining solvent engineering and hot casting.

Grain-Size-Controlled Mechanical Properties of Polycrystalline Monolayer MoS2

Nano Letters ◽  
2018 ◽  
Vol 18 (2) ◽  
pp. 1543-1552 ◽  
Author(s):  
Jianyang Wu ◽  
Pinqiang Cao ◽  
Zhisen Zhang ◽  
Fulong Ning ◽  
Song-sheng Zheng ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Monolayer Mos2 ◽  
Size Controlled

Preparation and Characterization of Grain Size Controlled LaB 6 Polycrystalline Cathode Material

2010 ◽  
Vol 27 (10) ◽  
pp. 107901 ◽  
Author(s):  
Bao Li-Hong ◽  
Zhang Jiu-Xing ◽  
Zhou Shen-Lin ◽  
Wei Yong-Feng
Keyword(s):  
Grain Size ◽  
Cathode Material ◽  
Size Controlled

scholarly journals A Novel Approach to the Layer-Number-Controlled and Grain-Size-Controlled Growth of High Quality Graphene for Nanoelectronics

2018 ◽  
Vol 1 (4) ◽  
pp. 1502-1512 ◽  
Author(s):  
Tej B. Limbu ◽  
Jean C. Hernández ◽  
Frank Mendoza ◽  
Rajesh K. Katiyar ◽  
Joshua James Razink ◽  
...  
Keyword(s):  
Grain Size ◽  
Controlled Growth ◽  
High Quality ◽  
Layer Number ◽  
Novel Approach ◽  
Size Controlled

scholarly journals Tailoring the Grain Size of Bi-Layer Graphene by Pulsed Laser Deposition

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 885 ◽  
Author(s):  
Jin Wang ◽  
Xuemin Wang ◽  
Jian Yu ◽  
Tingting Xiao ◽  
Liping Peng ◽  
...  
Keyword(s):  
Grain Size ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Photoelectron Spectra ◽  
Laser Deposition ◽  
Stable Region ◽  
Thermoelectric Efficiency ◽  
Sem Images ◽  
Hybrid State ◽  
Layer Graphene

Improving the thermoelectric efficiency of a material requires a suitable ratio between electrical and thermal conductivity. Nanostructured graphene provides a possible route to improving thermoelectric efficiency. Bi-layer graphene was successfully prepared using pulsed laser deposition in this study. The size of graphene grains was controlled by adjusting the number of pulses. Raman spectra indicated that the graphene was bi-layer. Scanning electron microscopy (SEM) images clearly show that graphene changes from nanostructured to continuous films when more pulses are used during fabrication. Those results indicate that the size of the grains can be controlled between 39 and 182 nm. A detailed analysis of X-ray photoelectron spectra reveals that the sp2 hybrid state is the main chemical state in carbon. The mobility is significantly affected by the grain size in graphene, and there exists a relatively stable region between 500 and 800 pulses. The observed phenomena originate from competition between decreasing resistance and increasing carrier concentration. These studies should be valuable for regulating grains sizes for thermoelectric applications of graphene.

Crystallographic properties of grain size-controlled polycrystalline silicon thin films deposited on alumina substrate

2009 ◽  
Vol 311 (3) ◽  
pp. 789-793 ◽  
Author(s):  
Akiyoshi Ogane ◽  
Shinya Honda ◽  
Yukiharu Uraoka ◽  
Takashi Fuyuki ◽  
Antonín Fejfar ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Polycrystalline Silicon ◽  
Alumina Substrate ◽  
Silicon Thin Films ◽  
Size Controlled
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