Flexible semiconductor Ge thin film grown on mica by van der Waals epitaxy. The film experiences no degradation in its electrical properties even after repeated bending. Credit: Aaron Littlejohn, Rensselaer Polytechnic Institute
Germanium, an elemental semiconductor, was the material of choice in the early history [...]
2018-05-08meta-author
The paper describes experimental results on low temperature plasma-assisted molecular beam epitaxy of GaN/AlN heterostructures on both 6H-SiC and Si(111) substrates. We demonstrate that application of migration enhanced epitaxy and metal-modulated epitaxy for growth of AlN nucleation and buffer layers lowers the screw and [...]
2019-11-05meta-author
Highlights
•The barrier controlled trapping model was developed around extended defects.
•Electron mobility and E-field distribution were distorted by space charge depletion region.
•Extended defects act as a recombination-activated region.
•The relationships between extended defects and detector performance were established.
Transient current techniques using alpha particle source were utilized [...]
PAM XIAMEN offers Tatalum Metal Substrate & Foil ( Polycrystalline ).
General Properties for Tantalum
Symbol Ta
Atomic Number 73
Atomic Weight: 180.95
Density: 16.69 g/cm3
Melting Point: 2996 °C
Boiling Point: 5425+/-100 °C
Ta – Tantalum Polycrystalline Metallic Foil: 0.05mm thick x 200mm Width x 400 [...]
2019-05-20meta-author
PAM XIAMEN offers 6″ FZ Silicon Wafer
Silicon wafers, per SEMI Prime, P/E 6″Ø×875±25µm,
FZ p-type Si:B[111]±0.5°, Ro > 10,000 Ohmcm,
Warp<60μm,
One-side-polished, Particles: ≤10@≥0.3μm,
MCL (Na, Al, K, Fe, Ni, Cu, Zn)<5E10/cm²,back-side etched,
Tarnish, orange peel, contamination, haze,
micro scratch, chips, edge chips, crack,
crow feet, pin hole, pits, dent, waviness,
smudge&scar on [...]
2019-09-03meta-author
The photoluminescent germanium nanocrystals (Ge-NCs) were successfully incorporated into electrospun polymeric nanofiber matrix in order to develop photoluminescent nanofibrous composite web. In the first step, the synthesis of Ge-NCs was achieved by nanosecond pulsed laser ablation of bulk germanium wafer immersed in organic liquid. The size, [...]