porous p-type silicon
Volume 9 | Issue 4 - 2019
... Porous silicon (PS) sheet of different thicknesses was made on the surface of n-type and p-type silicon substrate using two methods; Electrochemical Etching (ECE) used for ...
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Photo and electroluminescence of porous silicon layers
... was placed in a vacuum evaporation system, and a layer of ohmic contact metal (Al for p-type and Ti/Al for n-type samples) was evaporated on the back side of the wafer. The wafer was then cut into ...
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RF performances of inductors integrated on localized p+ type porous silicon regions
... The warp has been measured on full porous silicon sheet layers fabricated on 6-in. p-type (20 mΩ cm) (111) silicon bulk. Figure 2 shows the increase of wafer warp with the PS thickness ...
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Surface-Assisted Laser Desorption/Ionization-Mass Spectrometry (SALDI-MS) of Controlled Nanofeatures and the Associated Thermal Properties
... of porous silicon serves as the surface conduction channel for ...the porous Si is p-type then the hole depletion layer is initially formed on the ...the porous Si is ...
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Macropore formation in p type silicon: toward the modeling of morphology
... for p-Si electrodes of similar doping, which indeed motivated the choice of using a low fluoride concentration in the ...of porous silicon structure, macropores are observed in the rising part of the ...
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Micro-Technological Steps During the Fabrication of an AcHE Biosensor Designated to the Environment Monitoring
... a porous thin layer by adsorption. An advantageous method of the porous intermediate material anchored onto the Si-substrate, converting p-type Si in Si-porous by anodization, is ...
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Fabrication and Characteristics of Porous Silicon for Photoconversion
... The substrate used in this experiment is p-type (111) Si wafer with resistivity (1.5-4) Ω.cm thickness 508±15 μm grown by Czochralski (CZ). The back faces of wafers were doped with boron followed by Al ...
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Structural Characteristics of Porous Silicon
... the silicon wafer was found emitting red luminescence when exposed to ultra violet (UV) ...of silicon at grain boundaries and layer of porous silicon has been formed at the surface of ...
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Fabrication of p-Type Nano-porous Silicon Prepared by Electrochemical Etching Technique in HF-Ethanol and HF-Ethanol-H2O Solutions
... Nevertheless, silicon is not considered a suitable material for many devices owning to its low surface area ...hand, porous silicon (PSi) is currently a very applicable material due to its own unique ...
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Comparative study of initial stages of copper immersion deposition on bulk and porous silicon
... on p-type Si requires high potential value which compensates the lack of electrons for charge ...on p-type Si and covered with Cu NPs, there is no need to apply a specific potential ...
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Fabrication of n-type porous silicon membranes for sensing applications
... the porous layer from silicon ...the p-type case is that this second step of current density is strongly dependent on the first step applied, and cannot be chosen at ...the porous ...
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Investigation of the Solar Cells with Films of Porous Silicon and β Diketonates
... dissolved silicon amount in accor- dance with magnification of an amount of solution ions that participates in a ...of porous silicon is determined mainly by two factors: by delivery of F ions in ...
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Morphology of Porous Silicon Nanostructures in p-type Silicon Based on Novel Comparison between Two Electrochemical Cells Design
... when p-type Si is anodized in three specific alcoholic solvents used: HF: MeOH , HF:EtOH, and HF:PrOH , at ratio (1:1) in volume, etched at 60 ...of type and size (diameter and depth) of pores ...
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Investigations on europium doped alumino silicate xerogel incorporated in micro channel glass and porous silicon
... of porous silicon samples has been fabricated through the electrochemical etching in HF based ...Cz-grown, p-type Si wafers of resistivity, ρ = 10 Ω cm have been used for the present ...
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Infrared Transmission in Porous Silicon Multilayers
... The c-Si possesses an indirect bandgap in the momen- tum space, which inhibits its use in light-emitting devices. In 1990, Leigh Canham found [1] an efficient photolu- minescence for the visible range at room temperature ...
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Photonic porous silicon as a pH sensor
... the porous silicon (pSi) have been associated with pH-responsive polymers in order to detect variation of pH ...this type of sensor, the change of refractive index caused by the polymer upon ...
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Comparative simulation study between n- type and p- type Silicon Solar Cells and the variation of efficiency of n- type Solar Cell by the application of passivation layer with different thickness using AFORS HET and PC1D
... The "quantum efficiency" (Q.E.) is the ratio of the number of carriers collected by the solar cell to the number of photons of a given energy incident on the solar cell. The quantum efficiency may be given ...
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Electrical Characterization of P-Type 4h- Silicon Carbide Metal Contacts
... Silicon carbide (SiC) has attracted interest in recent years as a promising wide band gap semiconductor. It enjoys unique properties that make it a candidate to become useful in power devices. For example, SiC has ...
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The Study of Different Structuring Techniques for Creation of Non Evaporable Getters
... combining porous silicon and reactive metals or alloying to produce getter materials of new ...of porous matrix behavior and reactivity of structured metal ...
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Porous silicon nanoparticles for cancer photothermotherapy
... and porous silicon (PSi) [27,28]. Of these nanomaterials, we are particularly interested in PSi because it is known to have many important properties such as biocompat- ibility [29], biodegradability ...
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