Results 1 to 10 of about 41,539 (165)
Facile Preparation of Cellulose Aerogels with Controllable Pore Structure
Nanomaterials, 2023 Cellulose aerogels are the latest generation of aerogels and have also received extensive attention due to their renewable and biocompatible properties.
Jiahao Qiu +5 more
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Rapid Preparation of Mesoporous Methylsilsesquioxane Aerogels by Microwave Heating Technology
Molecules, 2021 Microwave heating technology is known as an alternative to traditional gas and electric heating sources. In this work, mesoporous methylsilsesquioxane (MSQ) aerogels were prepared via a sol–gel process accompanied by microwave heating technology, and ...
Xingzhong Guo +5 more
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Carbon Energy, 2023 The establishment of efficient oxygen evolution electrocatalysts is of great value but also challenging. Herein, a durable metal–organic framework (MOF) with minor atomically dispersed ruthenium and an optimized electronic structure is constructed as an ...
Yuwen Li +7 more
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The Effect of Etching Time On Structural Properties of Porous Quaternary AlInGaN Thin Films
Iraqi Journal of Physics, 2021 Using photo electrochemical etching technique (PEC), porous silicon (PS) layers were produced on n-type silicon (Si) wafers to generate porous silicon for n-type with an orientation of (111) The results of etching time were investigated at: (5,10,15 min).
Ghasaq Ali Tomaa, Alaa Jabbar Ghazai
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Porous silicon nanowires [PDF]
Nanoscale, 2011 In this mini-review, we summarize recent progress in the synthesis, properties and applications of a new type of one-dimensional nanostructures-single crystalline porous silicon nanowires. The growth of porous silicon nanowires starting from both p- and n-type Si wafers with a variety of dopant concentrations can be achieved through either one-step or ...
Yongquan, Qu +2 more
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Journal of Nanotechnology, 2022 In the work, porous silicon with observed photoluminescence was made from a p-type silicon substrate doped with boron and crystallographic orientation (100) using the method of electrochemical etching in a solution containing H2(SiF6) (silicon ...
M. B. Darmenkulova +4 more
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Structure and composition of a composite of porous silicon with deposited copper
Конденсированные среды и межфазные границы, 2023 Porous silicon is a promising nanomaterial for optoelectronics and sensorics, as it has a large specific surface area and is photoluminescent under visible light.
Alexander S. Lenshin +5 more
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Multiparametric Porous Silicon Sensors [PDF]
Sensors, 2002 We investigated the possibility of using several sensing parameters from porous silicon in order to improve gas selectivity. By fabricating porous silicon optical microcavities, three independent quantities can be measured, i.e. the electrical conductance, the photoluminescence intensity, and the wavelength of the optical resonance.
C. Baratto +6 more
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Electrochemistry Communications, 2023 A porous silicon-based capacitive structure with high specific capacitance is fabricated by three-dimensional electrochemical etching. As well as conventional planar electrochemical etching in two dimensions on the surface of a silicon chip, the lateral ...
Jia-Chuan Lin +4 more
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Preparation and Characterization Study of Porous Silicon Doped with Cu and Ag [PDF]
Engineering and Technology Journal, 2017 In this paper, porous silicon was prepared by using electrochemical etching technique of p-type silicon acceptor, with a resistivity of 1.5-4Ohm.cm, using hydrochloric acid with concentration of 24%. The etching current density effect 4, 12, 20mA/cm2 was
U. M. Nayef +2 more
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