Pressure-induced tuning of phase transition and role of disorder in electrical transport properties ofβ−SrxV6O15

2007 ◽  
Vol 76 (23) ◽  
Author(s):  
Ana Akrap ◽  
Neven Barišić ◽  
Richard Gaal ◽  
László Forró
Keyword(s):  
Phase Transition ◽  
Transport Properties ◽  
Electrical Transport ◽  
Electrical Transport Properties

scholarly journals Pressure-Induced Structural Phase Transition and Metallization in Ga2Se3 up to 40.2 GPa under Non-Hydrostatic and Hydrostatic Environments

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 746
Author(s):  
Meiling Hong ◽  
Lidong Dai ◽  
Haiying Hu ◽  
Xinyu Zhang
Keyword(s):  
Phase Transition ◽  
Electrical Conductivity ◽  
High Pressure ◽  
Phase Transformation ◽  
Transport Properties ◽  
Electrical Transport ◽  
Structural Phase ◽  
Structure Evolution ◽  
Systematic Research ◽  
Electrical Transport Properties

A series of investigations on the structural, vibrational, and electrical transport characterizations for Ga2Se3 were conducted up to 40.2 GPa under different hydrostatic environments by virtue of Raman scattering, electrical conductivity, high-resolution transmission electron microscopy, and atomic force microscopy. Upon compression, Ga2Se3 underwent a phase transformation from the zinc-blende to NaCl-type structure at 10.6 GPa under non-hydrostatic conditions, which was manifested by the disappearance of an A mode and the noticeable discontinuities in the pressure-dependent Raman full width at half maximum (FWHMs) and electrical conductivity. Further increasing the pressure to 18.8 GPa, the semiconductor-to-metal phase transition occurred in Ga2Se3, which was evidenced by the high-pressure variable-temperature electrical conductivity measurements. However, the higher structural transition pressure point of 13.2 GPa was detected for Ga2Se3 under hydrostatic conditions, which was possibly related to the protective influence of the pressure medium. Upon decompression, the phase transformation and metallization were found to be reversible but existed in the large pressure hysteresis effect under different hydrostatic environments. Systematic research on the high-pressure structural and electrical transport properties for Ga2Se3 would be helpful to further explore the crystal structure evolution and electrical transport properties for other A2B3-type compounds.

scholarly journals The role of traps in the photocurrent generation mechanism in thin InSe photodetectors

2020 ◽  
Vol 7 (1) ◽  
pp. 252-262 ◽  
Author(s):  
Qinghua Zhao ◽  
Wei Wang ◽  
Felix Carrascoso-Plana ◽  
Wanqi Jie ◽  
Tao Wang ◽  
...  
Keyword(s):  
Transport Properties ◽  
Electrical Transport ◽  
Indium Selenide ◽  
Generation Mechanism ◽  
Semiconducting Materials ◽  
Electrical Transport Properties ◽  
Photocurrent Generation

Due to the excellent electrical transport properties and optoelectronic performance, thin indium selenide (InSe) has recently attracted attention in the field of 2D semiconducting materials.

Role of Molecular Surface Passivation in Electrical Transport Properties of InAs Nanowires

Nano Letters ◽  
2008 ◽  
Vol 8 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Qingling Hang ◽  
Fudong Wang ◽  
Patrick D. Carpenter ◽  
Dmitri Zemlyanov ◽  
Dmitri Zakharov ◽  
...  
Keyword(s):  
Transport Properties ◽  
Electrical Transport ◽  
Surface Passivation ◽  
Molecular Surface ◽  
Electrical Transport Properties ◽  
Inas Nanowires

scholarly journals Order–disorder phase transition in an anhydrous pyrazole-based proton conductor: the enhancement of electrical transport properties

2017 ◽  
Vol 19 (37) ◽  
pp. 25653-25661 ◽  
Author(s):  
M. Widelicka ◽  
K. Pogorzelec-Glaser ◽  
A. Pietraszko ◽  
P. Ławniczak ◽  
R. Pankiewicz ◽  
...  
Keyword(s):  
Phase Transition ◽  
Heat Treatment ◽  
Electrical Conductivity ◽  
Transport Properties ◽  
Crystalline Structure ◽  
Electrical Transport ◽  
Proton Conductor ◽  
Electrical Transport Properties ◽  
Disorder Phase Transition

The heat treatment of the anhydrous proton conductor causes a change in the crystalline structure and improves electrical conductivity.

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