摘要:
Provided is a method of manufacturing silicon nanotubes including forming non-catalytic metal islands on a substrate; forming catalyst metal doughnuts to surround the non-catalytic metal islands; and growing silicon nanotubes on the catalyst metal doughnuts. The silicon nanotubes are efficiently grown using the catalyst metal doughnuts.
摘要:
Provided is a 2-terminal semiconductor device that uses an abrupt MIT semiconductor material layer. The 2-terminal semiconductor device includes a first electrode layer, an abrupt MIT semiconductor organic or inorganic material layer having an energy gap less than 2 eV and holes in a hole level disposed on the first electrode layer, and a second electrode layer disposed on the abrupt MIT semiconductor organic or inorganic material layer. An abrupt MIT is generated in the abrupt MIT semiconductor material layer by a field applied between the first electrode layer and the second electrode layer.
摘要:
Provided is a 2-terminal semiconductor device that uses an abrupt MIT semiconductor material layer. The 2-terminal semiconductor device includes a first electrode layer, an abrupt MIT semiconductor organic or inorganic material layer having an energy gap less than 2eV and holes in a hole level disposed on the first electrode layer, and a second electrode layer disposed on the abrupt MIT semiconductor organic or inorganic material layer. An abrupt MIT is generated in the abrupt MIT semiconductor material layer by a field applied between the first electrode layer and the second electrode layer.
摘要:
Provided is a nano structure composite and a method of manufacturing the same. More specifically, a nano structure composite that includes a substrate, a first layer formed of carbon nano structures on the substrate, and a second layer formed of metal oxide nano structures on the first layer, and a method of manufacturing the same are provided. When the nano structure composite according to the present invention is used, a device having a field emission characteristic higher efficiency than a conventional device can be realized, and also, the device can be manufactured at a lower temperature and at a lower pressure. Thus, manufacturing cost can be reduced and a large scale process can be performed.
摘要:
Provided is a 2-terminal semiconductor device that uses an abrupt MIT semiconductor material layer. The 2-terminal semiconductor device includes a first electrode layer, an abrupt MIT semiconductor organic or inorganic material layer having an energy gap less than 2eV and holes in a hole level disposed on the first electrode layer, and a second electrode layer disposed on the abrupt MIT semiconductor organic or inorganic material layer. An abrupt MIT is generated in the abrupt MIT semiconductor material layer by a field applied between the first electrode layer and the second electrode layer.
摘要:
Provided is a method of manufacturing silicon nanowires including: forming a silicon nanodot thin film having a plurality of silicon nanodots exposed on a substrate; and growing the silicon nanowires on the silicon nanodot thin film using the silicon nanodots as a nucleation site. The silicon nanowires can be manufactured using the silicon nanodot thin film disposed in a silicon nitride matrix, as a nucleation site instead of using catalytic metal islands, wherein the silicon nanodot thin film includes the silicon nanodots.
摘要:
Provided is a method of manufacturing silicon nanowires including: forming a silicon nanodot thin film having a plurality of silicon nanodots exposed on a substrate; and growing the silicon nanowires on the silicon nanodot thin film using the silicon nanodots as a nucleation site. The silicon nanowires can be manufactured using the silicon nanodot thin film disposed in a silicon nitride matrix, as a nucleation site instead of using catalytic metal islands, wherein the silicon nanodot thin film includes the silicon nanodots.
摘要:
A method of forming a sensor for detecting gases and biochemical materials that can be fabricated at a temperature in a range from room temperature to 400° C., a metal oxide semiconductor field effect transistor (MOSFET)-based integrated circuit including the sensor, and a method of manufacturing the integrated circuit are provided. The integrated circuit includes a semiconductor substrate. The sensor for detecting gases and biochemical materials includes a pair of electrodes formed on a first region of the semiconductor substrate, and a metal oxide nano structure layer formed on surfaces of the pair electrodes. A heater is formed to perform thermal treatment to re-use the material detected in the metal oxide nano structure layer. Also, a signal processor is formed by a MOSFET to process a predetermined signal obtained from a quantity change of a current flowing through the pair of electrodes of the sensor. To form the sensor, the metal oxide nano structure layer is formed on surfaces of the pair of electrodes at a temperature in a range from room temperature to 400° C.
摘要:
A gas sensor includes zinc oxide nano-structures formed on a substrate, a plurality of metal islands coated on a surface of each zinc oxide nano-structure and separated from one another, a first electrode electrically connected to one end of each zinc oxide nano-structure through the substrate, a second electrode electrically connected to the other end of each zinc oxide nano-structure, and a current variation-measuring unit electrically connected to each of the first electrode and the second electrode so as to measure a variation in the amount of current flowing between the first electrode and the second electrode. In order to form the plurality of metal islands on the zinc oxide nano-structures, a solution of metal components of a metal material is coated on the surface of each zinc oxide nano-structure.
摘要:
Provided are a gas sensor using a plurality of zinc oxide nano-structures on which metal islands are formed, and a method of fabricating the same. The gas sensor comprises zinc oxide nano-structures formed on a substrate, a plurality of metal islands coated on a surface of each zinc oxide nano-structure and separated from one another, a first electrode electrically connected to one end of each zinc oxide nano-structure through the substrate, a second electrode electrically connected to the other end of each zinc oxide nano-structure, and a current variation-measuring unit electrically connected to each of the first electrode and the second electrode so as to measure a variation in the amount of current flowing between the first electrode and the second electrode. In order to form the plurality of metal islands separated from one another on the surface of each zinc oxide nano-structure using a wet process, metal components of a metal material are coated on the surface of each zinc oxide nano-structure using the solution in which the metal material is solved.