Results 71 to 80 of about 171,999 (278)
Preparation of Porous Silicon by Electrochemical Etching in the Fabrication of a Solar Cell [PDF]
, 2003 Porous silicon samples have been prepared using electrochemical etching technique. In this project, a 3 cm x 5cm single crystal p-type silicon wafer , resistivity 19.64 Ωcm with thickness of 200µm was used to prepare porous silicon.
Magentharau, Adin Naraina
core
Opposite effects of NO$_2$ on electrical injection in porous silicon gas sensors
, 2003 The electrical conductance of porous silicon fabricated with heavily doped p-type silicon is very sensitive to NO$_2$. A concentration of 10 ppb can be detected by monitoring the current injection at fixed voltage.
Gaburro, Zeno +3 more
core +1 more source
Advanced Functional Materials, EarlyView.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source
FORMATION OF POROUS SILICON IN THE PULSED GALVANOSTATIC MODE
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019 The results of porous silicon formation by anodization of single crystalline silicon wafers in the pulsed galvanostatic mode are presented. Correlations between pore structure and anodization process parameters were determined.
E. B. Chubenko +4 more
doaj
Laterally stacked Schottky diodes for infrared sensor applications [PDF]
, 1991 Laterally stacked Schottky diodes for infrared sensor applications are fabricated utilizing porous silicon having pores. A Schottky metal contract is formed in the pores, such as by electroplating.
Lin, True-Lon
core +1 more source
Huge (but finite) time scales in slow relaxations: beyond simple aging
, 2011 Experiments performed in the last years demonstrated slow relaxations and aging in the conductance of a large variety of materials. Here, we present experimental and theoretical results for conductance relaxation and aging for the case-study example of ...
Ariel Amir +5 more
core +1 more source
Physical Properties of Semiconducting/Magnetic Nanocomposites [PDF]
, 2015 In this review the fabrication of porous silicon/magnetic nanocomposite materials and their physical properties are elucidated. Especially the investigation of the presented systems with respect to their magnetic properties is reported.
Klemens Rumpf, Petra Granitzer
core +2 more sources
Advanced Functional Materials, EarlyView.Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida +16 more
wiley +1 more source
Porous silicon derived from 130 nm Stöber silica as lithium‐ion battery anode
Nano Select, 2021 Micro‐sized porous silicon‐based anode materials gain much interest due to good cycling stability, high rate performance, reasonable tap density and low processing cost.
Xiuxia Zuo +4 more
doaj +1 more source
Porous silicon formation and electropolishing
, 2001 Electrochemical etching of silicon in hydrofluoride containing electrolytes leads to pore formation for low and to electropolishing for high applied current. The transition between pore formation and polishing is accompanied by a change of the valence of
A. Ulhir +20 more
core +1 more source