摘要:
Provided is a method for growing a nanowire, including: providing a substrate with a base portion having a first surface and at least one support structure extending above or below the first surface; forming a dielectric coating on the at least one support structure; forming a photoresist coating over the substrate; forming a metal coating over at least a portion of the dielectric coating; removing a portion of the dielectric coating to expose a surface of the at least one support structure; removing a portion of the at least one support structure to form a nanowire growth surface; growing at least one nanowire on the nanowire growth surface of a corresponding one of the at least one support structure, wherein the nanowire comprises a root end attached to the growth surface and an opposing, free end extending from the root end; and elastically bending the at least one nanowire.
摘要:
An electrical cell-substrate impedance sensor (ECIS) (100) includes a substrate (102); a catalyst layer (103) formed on the substrate (102); and a plurality of nanowire electrodes array (104) grown on the catalyst layer (103). The plurality of nanowire electrodes are configured to measure an electrical response of a biological cell.
摘要:
A method for manufacturing a semiconductor device with a heterostructure comprises the steps of: covering a semiconductor structure (50) with a seed layer structure (52; 54); forming one or more separated circularly shaped openings in the seed layer structure to expose the semiconductor structure therein, and leave the seed layer structure outside the one or more separated circularly shaped openings; forming an insulator layer thereon; etching the obtained structure to (i) expose at least a portion of the seed layer structure, such that the exposed at least portion of the seed layer structure surrounds each of the one or more separated circularly shaped openings, and (ii) optionally expose the semiconductor structure, in the one or more separated circularly shaped openings; and epitaxially growing a semiconductor layer (80) from the exposed at least portion of the seed layer structure, firstly mainly vertically and then into each of the one or more separated circularly shaped openings until the epitaxially grown semiconductor layer coalesces with the insulator layer or the semiconductor structure in each of the one or more separated circularly shaped openings.
摘要:
The present invention concerns a substrate comprising a continuous or discontinuous layer of silicon and/or germanium consisting of one or a plurality of monocrystalline grains, and on said layer, one or a plurality of objects of varying shapes consisting of materials which require substrates having a crystalline orientation (111) suitable for the epitaxial growth of same. The invention also concerns a method for producing such a substrate.
摘要:
A method for fabricating an electronic device includes providing an engineered substrate structure comprising a III-nitride seed layer, forming GaN-based functional layers coupled to the III-nitride seed layer, and forming a first electrode structure electrically coupled to at least a portion of the GaN-based functional layers. The method also includes joining a carrier substrate opposing the GaN-based functional layers and removing at least a portion of the engineered substrate structure. The method further includes forming a second electrode structure electrically coupled to at least another portion of the GaN-based functional layers and removing the carrier substrate.
摘要:
A process of fabricating a nanostructure is disclosed. The process is effected by growing the nanostructure in situ within a trench formed in a substrate and having therein a metal catalyst selected for catalyzing the naostructure growth, under the conditions in which the growth is guided by the trench. Also disclosed are nanostructure systems comprising a nanostructure, devices containing such systems and uses thereof.
摘要:
A graphene pattern is fabricated by forming a pattern of passivation material on a growth substrate. The pattern of passivation material defines an inverse pattern of exposed surface on the growth substrate. A carbon-containing gas is supplied to the inverse pattern of the exposed surface of the growth substrate, and patterned graphene is formed from the carbon. The passivation material does not facilitate graphene growth, and the inverse pattern of exposed surface of the growth substrate facilitates graphene growth on the exposed surface of the growth substrate.
摘要:
Amongst the candidates for very high efficiency solid state light sources and full solar spectrum solar cells are devices based upon InGaN nanowires. Additionally these nanowires typically require heterostructures, quantum dots, etc which all place requirements for these structures to be grown with relatively few defects and in a controllable reproducible manner. Additionally flexibility according to the device design requires that the nanowire at the substrate may be either InN or GaN. According to the invention a method of growing relatively defect free nanowires and associated structures for group IIIA-nitrides is presented without the requirement for foreign metal catalysts and overcoming the non-uniform growth of prior art non-catalyst growth techniques. According to other embodiments of the invention self-organizing dot-within-a-dot nanowire and dot-within-a-dot-within-a-well nanowire structures are presented.
摘要翻译:公开了具有基底基板,绝缘层和SixGe1-x晶体层(0 = xxGe1-x晶体层(0 = x <1))的半导体基板和晶格匹配或准晶体化合物的化合物半导体, 还包含至少与SixGe1-x晶体层(0 = x <1)的区域晶格匹配的电子器件,还公开了一种电子器件,其包括基板,形成在基板上的绝缘层,SixGe1-x晶体层 0 = x <1),至少在一个区域退火,至少在SixGe1-x晶体层的区域上晶格匹配或准晶格匹配的化合物半导体(0 = x <1) 1)和使用该化合物半导体形成的半导体器件。