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1. 发明公开

EP1634334A1 NANOWHISKERS WITH PN JUNCTIONS AND METHODS OF FABRICATING THEREOF 审中-公开
标题翻译：与PN转换和方法的制备纳米SCHNURR发
公开(公告)号：EP1634334A1
公开(公告)日：2006-03-15
申请号：EP04725089.9
申请日：2004-04-01
申请人： Startskottet 22286 AB
发明人： SAMUELSON, Lars, Ivar , OHLSSON, Bjorn, Jonas , LEBEBO, Lars-Ake
IPC分类号： H01L29/06 , H01L29/861 , C30B29/62
CPC分类号： H01L29/0665 , B82Y10/00 , C30B11/00 , C30B11/12 , C30B29/62 , H01L21/02395 , H01L21/02461 , H01L21/02463 , H01L21/02543 , H01L21/02546 , H01L21/02573 , H01L21/02603 , H01L21/0262 , H01L21/02631 , H01L21/02653 , H01L21/2258 , H01L29/0673 , H01L29/0676 , H01L29/068 , H01L29/861 , H01L29/885 , Y10S977/932
摘要： Nano-engineered structures are disclosed, incorporating nanowhiskers of high mobility conductivity and incorporating pn junctions. In one embodiment, a nanowhisker of a first semiconducting material has a first band gap, and an enclosure comprising at least one second material with a second band gap encloses said nanoelement along at least part of its length, the second material being doped to provide opposite conductivity type charge carriers in respective first and second regions along the length of the of the nanowhisker, whereby to create in the nanowhisker by transfer of charge carriers into the nanowhisker, corresponding first and second regions of opposite conductivity type charge carriers with a region depleted of free carriers therebetween. The doping of the enclosure material may be degenerate so as to create within the nanowhisker adjacent segments having very heavy modulation doping of opposite conductivity type analogous to the heavily doped regions of an Esaki diode. In another embodiment, a nanowhisker is surrounded by polymer material containing dopant material. A step of rapid thermal annealing causes the dopant material to diffuse into the nanowhisker. In a further embodiment, a nanowhisker has a heterojunction between two different intrinsic materials, and Fermi level pinning creates a pn junction at the interface without doping.

2. 发明公开

EP1613549A1 PRECISELY POSITIONED NANOWHISKERS AND NANOWHISKER ARRAYS AND METHOD FOR PREPARING THEM 有权
标题翻译：精密POSITIONED纳米晶须结构及其制造方法
公开(公告)号：EP1613549A1
公开(公告)日：2006-01-11
申请号：EP04700471.8
申请日：2004-01-07
申请人： Startskottet 22286 AB
发明人： SAMUELSON, Lars, Ivar , OHLSSON, Björn, Jonas , MARTENSSON, Thomas, Martin, Ingvar
IPC分类号： B82B3/00 , C30B11/12 , C30B29/62
CPC分类号： C30B11/00 , B82Y10/00 , B82Y30/00 , C30B11/12 , C30B29/40 , C30B29/605
摘要： A nanoengineered structure comprising an array of more than about 1000 nanowhiskers on a substrate in a predetermined spatial configuration, for use for example as a photonic band gap array, wherein each nanowhisker is sited within a distance from a predetermined site not greater than about 20% of its distance from its nearest neighbour. To produce the array, an array of masses of a catalytic material are positioned on the surface, heat is applied and materials in gaseous form are introduced such as to create a catalytic seed particle from each mass, and to grow, from the catalytic seed particle, epitaxially, a nanowhisker of a predetermined material, and wherein each mass upon melting, retains approximately the same interface with the substrate surface such that forces causing the mass to migrate across said surface are less than a holding force across a wetted interface on the substrate surface. A nanoengineered structure comprising an array of more than about 1000 nanowhiskers on a substrate in a predetermined spatial configuration, for use for example as a photonic band gap array, wherein each nanowhisker is sited within a distance from a predetermined site not greater than about 20% of its distance from its nearest neighbour. To produce the array, an array of masses of a catalytic material are positioned on the surface, heat is applied and materials in gaseous form are introduced such as to create a catalytic seed particle from each mass, and to grow, from the catalytic seed particle, epitaxially, a nanowhisker of a predetermined material, and wherein each mass upon melting, retains approximately the same interface with the substrate surface such that forces causing the mass to migrate across said surface are less than a holding force across a wetted interface on the substrate surface.

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