Comparision between (111)B and (100) III-V nanowhiskers

• Epitaxial III-V nanowhiskers have been grown with orientation in the [111]B and [100] directions. While the nature of the crystal structure in the (111)B type of whiskers varies more or less at random between hexagonal (wurtzite) and cubic (zincblende) structure, the (100) type whiskers are of single crystal zincblende structure. We show that the bounding surface facets of the whiskers are either {110} type (zincblende) or the related {1120} facets (wurtzite), giving a rectangular cross-section of (100) whiskers and a hexagonal cross section of (111)B whiskers. The variations in crystal structure and facet type are discussed in connection to the electronic properties of the whiskers and the choice of whisker type for applications in electronics and photonics

Ämnesord

NATURVETENSKAP  -- Fysik -- Den kondenserade materiens fysik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Condensed Matter Physics (hsv//eng)

Nyckelord

GaAs

InAs

InP

electronics

B

photonics

B whiskers

crystal structure

epitaxial III-V nanowhiskers

zincblende

hexagonal structure

wurtzite

cubic structure

bounding surface facets

rectangular cross section

hexagonal cross section

electronic properties

facet type

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