Vapor detection enabled by self-assembled colloidal photonic crystals
Here we report the sensitive and reversible detection of vapors by using self-assembled
colloidal photonic crystals. The condensation of various vapors in the interstitials of silica …
colloidal photonic crystals. The condensation of various vapors in the interstitials of silica …
Light absorption enhancement of silicon-based photovoltaic devices with multiple bandgap structures of porous silicon
KH Wu, CW Li - Materials, 2015 - mdpi.com
Porous-silicon (PS) multi-layered structures with three stacked PS layers of different porosity
were prepared on silicon (Si) substrates by successively tuning the electrochemical-etching …
were prepared on silicon (Si) substrates by successively tuning the electrochemical-etching …
Novel design of porous silicon based sensor for reliable and feasible chemical gas vapor detection
In this study, an innovative design for porous silicon (PSi) based sensors is proposed to
eliminate some problems of conventional PSi sensors such as undesired reflections from …
eliminate some problems of conventional PSi sensors such as undesired reflections from …
Macroporous photonic crystal-based vapor detectors created by doctor blade coating
H Yang, P Jiang - Applied Physics Letters, 2011 - pubs.aip.org
We report the achievement of rapid and reversible vapor detection by using 3D
macroporous photonic crystals created by a continuous and scalable bottom-up technology …
macroporous photonic crystals created by a continuous and scalable bottom-up technology …
The effect of silicon loss and fabrication tolerance on spectral properties of porous silicon Fabry-Perot cavities in sensing applications
In this paper, we investigate the effect of non-uniformities (enlargement of current passage,
non-equal surface current densities, etc.) in axial as well as transverse directions of a porous …
non-equal surface current densities, etc.) in axial as well as transverse directions of a porous …
Deposition of ZnO thin films by RF&DC magnetron sputtering on silicon and porous-silicon substrates for pyroelectric applications
In this study, the temperature response of ZnO thin film is investigated in an attempt to
enhance its pyroelectric performance. The film is formed on PS and Si substrates utilizing …
enhance its pyroelectric performance. The film is formed on PS and Si substrates utilizing …
Characterization of porous silicon Fabry–Pérot optical sensors for reflectivity and transmittivity measurements
We investigate the effect of fabrication parameters (nonequal surface current densities,
impurities inside the structure, etc.) and loss factor on reflectivity and transmittivity …
impurities inside the structure, etc.) and loss factor on reflectivity and transmittivity …
Nondestructive optical characterization of Fabry–Perot cavities by full spectra fitting method
Porous silicon (PSi) Fabry-Pérot (FP) cavities are the sensor types widely employed in
sensing applications of chemical, biological, or gas molecules. Prior to sensor operation …
sensing applications of chemical, biological, or gas molecules. Prior to sensor operation …
Strong white light emission from a processed porous silicon and its photoluminescence mechanism
T Karacali, K Ciçek - Journal of luminescence, 2011 - Elsevier
We have prepared various porous silicon (PS) structures with different surface conditions
(any combination of oxidation, carbonization as well as thermal annealing) to increase the …
(any combination of oxidation, carbonization as well as thermal annealing) to increase the …
Identification of gases by porous optical sensors using reflectivity difference and wavelength shift
We propose a novel method for identification of various gases using combined
measurements of wavelength shift (Δλ 0) and reflectivity difference (ΔR). The method relies …
measurements of wavelength shift (Δλ 0) and reflectivity difference (ΔR). The method relies …