Growth of Si whiskers on Au/Si(111) substrate by gas source molecular beam epitaxy (MBE)

Liu, J.L; Cai, Shiwei; Jin, Geng Bang; Thomas, S.G.; Wang, K.L

doi:10.1016/s0022-0248(98)01408-0

Cited by 38 publications

(21 citation statements)

References 17 publications

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“…Alternate methods involve momentum or energy transfer such as in pulsed laser ablation [17] or molecular beam epitaxy (MBE) [18] from solid targets. Despite a range of alternatives, CVD has emerged as the most popular technique.…”

Section: Overview Of Nanowire Synthesismentioning

confidence: 99%

Semiconductor nanowire solar cells: synthetic advances and tunable properties

Kempa

Lieber

2014

Pure and Applied Chemistry

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Abstract:The solar power received by Earth far exceeds global power demands. Despite this, infrastructure shortages and high capital costs prevent the wide-scale adoption of photovoltaics to displace conventional energy technologies relying on carbon-based fuels. In response, new concepts and materials have been explored to develop next-generation solar cells capable of operating more efficiently and cheaply. Over the past decade, single semiconductor nanowire (NW) and NW array devices have emerged as promising platforms with which to examine new concepts. Small distances in NWs allow for efficient charge separation while tunable photonic modes permit light absorption properties distinct from bulk materials. Furthermore, the synthesis and fabrication of NW devices presents new opportunities such as with incorporation of complex heterostructures or use of cheaper substrates. Here, we present a critical discussion of the benefits and remaining challenges related to utilization of NWs for solar energy conversion and emphasize the synthetic advances leading towards significant improvement in the electrical and optical performance of NW devices. We conclude by articulating the unique capabilities of solar cells assembled from multiple, distinct NWs.

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Section: Overview Of Nanowire Synthesismentioning

confidence: 99%

Semiconductor nanowire solar cells: synthetic advances and tunable properties

Kempa

Lieber

2014

Pure and Applied Chemistry

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“…VLS combined with lithography allows tight control over nanoneedle diameter (down to a few nanometres), their density and their arrangement over the carrier substrate (Fan et al , 2006). Variants of the basic chemical vapour deposition (CVD) VLS principle generate the precursor gaseous Si by laser ablation (Morales, 1998), plasma generation (Hofmann et al , 2003), and molecular beam epitaxy (Liu et al , 1999). Other strategies employ Si precursor in solution (Heitsch et al , 2008;Holmes, 2000) or in solid (Wong et al , 2005) form.…”

Section: Vapour-liquid-solid (Vls) Growth Of Nanoneedlesmentioning

confidence: 99%

Silicon nanoneedles for drug delivery

Chiappini

Almeida

2014

Semiconducting Silicon Nanowires for Biomedical Applications

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“…The most popular method is the CVD using gaseous sources such as silane (SiH 4 ), [73] [68] ) disilane (R 2 SiH 2 ), [74] and silicon tetrachloride (SiCl 4 ), [75] and plasma-enhanced CVD techniques. [76] In addition, evaporation of pure silicon sources by PLD, [9] by MBE [77] or by thermal evaporation [78] have also been widely practiced. The successfully proved metallic catalysts that promote VLS growth of SiNWs include Ni, Cu, Pd, Ag, Pt, Al, Ga, In, Zn, and Fe.…”

Section: Group IV Elemental Nanowiresmentioning

confidence: 99%