Tuning the optical properties of porous silicon-based microcavities by energetic oxygen ion beams for optoelectronic applications

2022 ◽  
Vol 306 ◽  
pp. 130914
Author(s):  
Chandra Prakash Verma ◽  
K. Asokan ◽  
D. Kanjilal ◽  
G. Vijaya Prakash
Keyword(s):  
Optical Properties ◽  
Porous Silicon ◽  
Ion Beams ◽  
Oxygen Ion ◽  
Optoelectronic Applications ◽  
Silicon Based

Optical properties of porous-silicon-based structures with modified nanodiamond films

2015 ◽  
Vol 41 (2) ◽  
pp. 177-179 ◽  
Author(s):  
V. A. Yuzova ◽  
A. Ya. Korets ◽  
F. F. Merkushev ◽  
O. V. Semenova
Keyword(s):  
Optical Properties ◽  
Porous Silicon ◽  
Silicon Based

Optical Properties of Non-Periodic Dielectric Systems Made of Nanostructured Porous Silicon

2009 ◽  
Vol 5 ◽  
pp. 69-78 ◽  
Author(s):  
B. Alvarado Tenorio ◽  
J. Escorcia-Garcia ◽  
Miguel Eduardo Mora-Ramos ◽  
V. Agarwal
Keyword(s):  
Optical Properties ◽  
Porous Silicon ◽  
Optical Thickness ◽  
Periodic Structures ◽  
Period Doubling ◽  
Interference Filters ◽  
Transfer Matrix Approach ◽  
Multilayered Systems ◽  
Random Structures ◽  
Silicon Based

To investigate the optical properties in non-periodic dielectric systems, we study here the reflection of light from nanostructured porous-silicon-based period doubling heterostructures. The multilayered systems are fabricated in such a way that the optical thickness of each layer is one quarter of 650nm. The results for the optical reflectance are presented and compared with that of Fibonacci, Thue-Morse, and random structures fabricated under the same conditions. Numerical simulation for the reflectance along the lines of the transfer matrix approach is performed. In addition, optical reflection from Gaussian porous silicon multilayers is also briefly discussed. We find that porous silicon Period Doubling dielectric multilayers could demonstrate the optical properties similar to the classical periodic Febry-Perot interference filters with one or multiple resonant peaks, but with an advantage of having total optical thickness much lesser than that of the periodic structures.

Investigation of porous silicon carbide as a new material for environmental and optoelectronic applications

2010 ◽  
Vol 256 (18) ◽  
pp. 5629-5639 ◽  
Author(s):  
A. Keffous ◽  
N. Gabouze ◽  
A. Cheriet ◽  
Y. Belkacem ◽  
A. Boukezzata
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
Porous Silicon Carbide ◽  
New Material ◽  
Optoelectronic Applications

Variation of the optical properties of porous silicon as a result of thermal annealing in vacuum

1997 ◽  
Vol 31 (7) ◽  
pp. 704-706 ◽  
Author(s):  
V. A. Kiselev ◽  
S. V. Polisadin ◽  
A. V. Postnikov
Keyword(s):  
Optical Properties ◽  
Porous Silicon ◽  
Thermal Annealing

Non-linear optical properties of poly(phenylene vinylene) in porous silicon substrates

2005 ◽  
Vol 2 (9) ◽  
pp. 3222-3226 ◽  
Author(s):  
T. P. Nguyen ◽  
P. Le Rendu ◽  
C. Simos ◽  
P. X. Nguyen ◽  
V. Skarka ◽  
...  
Keyword(s):  
Optical Properties ◽  
Porous Silicon ◽  
Phenylene Vinylene ◽  
Silicon Substrates ◽  
Non Linear ◽  
Linear Optical Properties ◽  
Linear Optical

scholarly journals Fabrication of Porous Silicon Based Humidity Sensing Elements on Paper

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Tero Jalkanen ◽  
Anni Määttänen ◽  
Ermei Mäkilä ◽  
Jaani Tuura ◽  
Martti Kaasalainen ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Smart Cities ◽  
Low Cost ◽  
Electrical Characterization ◽  
Fabrication Process ◽  
Sensing Element ◽  
Paper Substrate ◽  
Roll To Roll ◽  
Silver Electrodes ◽  
Silicon Based

A roll-to-roll compatible fabrication process of porous silicon (pSi) based sensing elements for a real-time humidity monitoring is described. The sensing elements, consisting of printed interdigitated silver electrodes and a spray-coated pSi layer, were fabricated on a coated paper substrate by a two-step process. Capacitive and resistive responses of the sensing elements were examined under different concentrations of humidity. More than a three orders of magnitude reproducible decrease in resistance was measured when the relative humidity (RH) was increased from 0% to 90%. A relatively fast recovery without the need of any refreshing methods was observed with a change in RH. Humidity background signal and hysteresis arising from the paper substrate were dependent on the thickness of sensing pSi layer. Hysteresis in most optimal sensing element setup (a thick pSi layer) was still noticeable but not detrimental for the sensing. In addition to electrical characterization of sensing elements, thermal degradation and moisture adsorption properties of the paper substrate were examined in connection to the fabrication process of the silver electrodes and the moisture sensitivity of the paper. The results pave the way towards the development of low-cost humidity sensors which could be utilized, for example, in smart packaging applications or in smart cities to monitor the environment.

scholarly journals The relative biological effectiveness for carbon, nitrogen, and oxygen ion beams using passive and scanning techniques evaluated with fully 3D silicon microdosimeters

2018 ◽  
Vol 45 (5) ◽  
pp. 2299-2308 ◽  
Author(s):  
Linh T. Tran ◽  
David Bolst ◽  
Susanna Guatelli ◽  
Alex Pogossov ◽  
Marco Petasecca ◽  
...  
Keyword(s):  
Relative Biological Effectiveness ◽  
Ion Beams ◽  
Oxygen Ion ◽  
Biological Effectiveness
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