Hydrogen in porous silicon — A review

Manilov, A.I.; Skryshevsky, V. A.

doi:10.1016/j.mseb.2013.05.001

Cited by 71 publications

(31 citation statements)

References 220 publications

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“…Porous silicon (PS) has been one of the most studied materials in recent years [1,2]; however, many of its properties do not have satisfactory explanation, remaining matter of debate. Among its interesting properties are quasibalistic electronic emission [3], electricfield induced switching of diode polarity [4], photoluminescence in the visible [5] and tunable optical properties [6].…”

Section: Introductionmentioning

confidence: 99%

Negative differential resistance in porous silicon devices at room temperature

Marin

Toranzos

Urteaga

et al. 2015

Superlattices and Microstructures

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Section: Introductionmentioning

confidence: 99%

Negative differential resistance in porous silicon devices at room temperature

Marin

Toranzos

Urteaga

et al. 2015

Superlattices and Microstructures

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“…Further, room temperature and light‐induced hydrosilylation of alkene esters onto silicon nanocrystals was presented and evidenced a strong correlation between the dimension of the nanocrystal and successful grafting. Another possible factor that may have an influence is the hydrogen termination that is dependent on the porosity of the substrate . Those, the presence of mono di‐ and tri‐hydrides vary between the three different substrates (see Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Click Coupling Reactions on Flat and Nanostructured Hydrogen‐Passivated Silicon Surfaces

Henriksson

Hoffmann

2018

Physica Status Solidi (a)

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Dialkynes are grafted onto hydrogen‐passivated silicon wafers, porous silicon, and silicon nanowires via thermally induced hydrosilylation followed by surface functionalization via azide alkyne cycloaddition. The surfaces are characterized with Fourier transform infrared spectroscopy (FTIR) and electrochemical measurements that indicate a correlation between the quality of the organic layer and the morphology of the substrate. After the initial hydrosilylation reaction, the amount of accessible surface bonded alkynes is observed to be substantially lower on porous, irregular surfaces compared to flat wafers and well‐defined vertically aligned silicon nanowire arrays, thus precluding an effective subsequent azide‐alkyne cycloaddition on porous silicon.

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“…In the last two decades,p orous Si has been extensivelye xplored as an interesting optical material, [1][2][3][4][5][6] drug delivery vehicle, [7][8][9][10][11] sensor, [12][13][14][15][16][17][18] gas storage medium, [19,20] anode material for Li-ion batteries, [21][22][23][24] and in other energy conversion systems. [25][26][27][28] The utility of porous Si is highly dependento ni ts surfacea rea, crystallinity,m orphology,a nd pore volume, which are often dictatedb yt he synthetic methods used for its preparation.…”

Section: Introductionmentioning

confidence: 99%

Metallothermic Reduction of Silica Nanoparticles to Porous Silicon for Drug Delivery Using New and Existing Reductants

Lai

Thompson

Dasog

2018

Chemistry A European J

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Abstract:In this study, the influence of metals (Mg, Al, and Ca) and reaction conditions (time, temperature, and metal grain size) on the metallothermic reduction of Stöber silica nanoparticles (NPs) to form porous Si was explored. Mg metal was found to be an effective reducing agent even at temperatures below its melting point; however, it also induced a high degree of structural damage and morphology change. Al was effective at reducing silica NPs only at its melting point and higher temperatures, but the resulting particles retained a higher degree of structural morphology as compared to those reduced using Mg. Ca was found to be ineffective in reducing silica. A new reductant, a mixture of 70% Mg and 30% Al, was found to induce the least amount of morphology change, and the reactions proceeded at temperatures (450 °C) lower than those required by Mg or Al individually. Furthermore, porous Si-NPs obtained using Mg, Al, and the mixture of 70% Mg and 30% Al as reductants were investigated as carriers for ibuprofen loading and release. Porous Si obtained from Mg and Mg/Al mixture reductions showed higher drug loading and a sustained drug release profile whereas porous Si obtained from Al reduction had lower loading and showed a conventional release profile over 24 hours.

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Hydrogen in porous silicon — A review

Cited by 71 publications

References 220 publications

Negative differential resistance in porous silicon devices at room temperature

Negative differential resistance in porous silicon devices at room temperature

Click Coupling Reactions on Flat and Nanostructured Hydrogen‐Passivated Silicon Surfaces

Metallothermic Reduction of Silica Nanoparticles to Porous Silicon for Drug Delivery Using New and Existing Reductants

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