Abstract:
The present invention relates to a solar cell having quantum dot nanowire array and the fabrication method thereof. The solar cell according to the present invention includes quantum dot nanowire array with a heterostructure including matrix and semiconductor quantum dots, and p-type and n-type semiconductor and electrodes each contacting the quantum dot nanowires. With the solar cell according to the present invention, the band gap energy of the semiconductor quantum dot can be easily controlled, the semiconductor quantum dots having different sizes are provided in the quantum dot nanowire so that the photoelectric conversion can be performed in the wide spectrum from visible rays to infrared rays, the quantum dot is embedded in the high density quantum dot nanowire array so that light absorption can be maximized, and the quantum dot nanowire contact p-type and n- type semiconductor over a wide area, conduction efficiency of electrons and holes can be improved.
Abstract:
The present invention relates to a disease diagnosis method, a marker screening method, and a marker using a time- of-flight secondary ion mass spectrometry (TOF-SIMS), and more particularly, to a large intestine cancer diagnosis method, a large intestine cancer marker screening method, and a large intestine cancer marker using a time-of -flight secondary ion mass spectrometry (TOF-SIMS). Specifically, the present invention provides a method diagnosing a disease using a pattern of secondary ion mass (m/z) peaks of biological samples measured using a time-of- flight secondary ion mass spectrometry (TOF-SIMS) as a marker, a marker screening method being a reference judging an existence or non-existence of a disease, and a marker configured of specific secondary ion mass peaks.
Abstract:
The present invention relates to a nanoparticle sensor which is capable to identify an existence/nonexistence, a concentration, a size distribution and a component of the nanoparticles using an electrode pair having a separated distance of a nano-gap, in which the nanoparticle sensor includes a unit element configured with a plurality of unit electrodes electrically operated independently from each other and detects the nanoparticles based on the number of the unit electrodes electrically changed due to the nanoparticles captured into the nano-gap. The nanoparticle sensor of the present invention can detect the component, the size, the size distribution and the concentration of the nanoparticles by single measurement, have high reliability and regeneration while reducing a detection time by statistical method via a plurality of electrode pairs having the nano-gap, and detect even very low concentration of nanoparticles.
Abstract:
A tactile sensor having a resistance pattern having abrasion resistance and excellent stability even at a high temperature and a method of manufacturing the same are disclosed. The high-temperature tactile sensor includes an upper plate which is configured by forming an electrode pattern made of a conductive material on one surface of an upper film and forming a resistance pattern on a surface of the electrode pattern, and a lower plate which is configured by forming an electrode pattern made of a conductive material on one surface of a lower film and forming a resistance pattern on a surface of the electrode pattern, wherein the resistance patterns are arranged to face each other and spacers are installed between the resistance patterns to stack the upper and lower plates, and wherein the resistance patterns are formed by mixing carbon nanotubes (CNTs) with polyimide.
Abstract:
The present invention relates to a minute measuring instrument for high speed and large area and a method thereof, and more particularly, to a minute measuring instrument for high speed and large area which measures properties of a specimen in high speed by a focused-beam ellipsometric part and then minutely remeasures the position showing a singular point by a minute measuring part and a method thereof.
Abstract:
The present invention relates to a single-polarizer focused-beam ellipsometer, and more particularly, to a focused-beam ellipsometer having a simplified structure in which a single polarizing beam splitter plays roles as a polarization generator, a beam splitter and a polarization analyzer. A measuring method is employed in which a multiple incidence plane measurement method is applied to multiple angles of incidence, and thus it is possible to analyze exact information for optical properties of the specimen, i.e., in the case of a thin film, thickness and refractive index of the thin film.
Abstract:
The present invention relates to The present invention relates to an ellipsometer, and more particularly, to a linear focused-beam ellipsometer which linearly focuses a light on a specimen using a cylindrical optical system and then measures variation in polarization state of the reflected light. A light split by the beam splitting part is linearly focused onto a plurality of specimens and variation in polarization state of the reflected light is measured with respect to multiple angles of incidence. Therefore, it is possible to measure a plurality of specimens at the same time.
Abstract:
A frequency- stabilized laser apparatus and a method for stabilizing the frequency of a laser are disclosed. A semiconductor laser emits a beam. An external reflector has a resonance frequency and feeds back the emitted beam to the semiconductor laser if the frequency of the emitted beam is equal to the resonance frequency. An interference signal generator generates an interference signal for detecting the wavelength of the emitted beam and a controller detects the wavelength of the beam from the generated interference signal. According to the frequency- stabilized laser apparatus and the method for stabilizing the frequency of the laser, it is possible to stabilize the frequency of the beam emitted from the semiconductor laser and output the beam having the stable frequency for a long period of time.
Abstract:
A scanning ion conductance microscope having a multipipette is provided, which includes multiple pipettes to measure ion currents so that it is less affected by noise, thereby achieving a more accurate image. The multipipette measures changes in the levels of ion currents flowing through pipette holes of the multiple pipettes, each having a pipette electrode, and then images the measurement. A sample is measured by comparing ion currents flowing through the pipette holes of the multipipette.
Abstract:
The present invention relates to an extracorporeal High Intensity Focused Ultrasound (HIFU) necrosis apparatus through the control of an electronic signal, including oscillation elements for generating ultrasonic beams, an ultrasonic oscillator array having the oscillation elements fixed on a plane and oriented toward a life, delay circuits respectively connected to the oscillation elements for delaying ultrasonic oscillation by a delay time, and control means for controlling the delay time so that the ultrasonic beams are focused, and a method of employing the same. According to the present invention, waved surfaces with a variety of directions and curvatures can be formed using several oscillation elements and several delay circuits disposed on a plane, and a focus can be formed at any desired place. Accordingly, there are advantages in that installation is convenient, and a tissue, such as tumor, which is a target tissue, can be necrotized without damage to normal tissues necrosis. Further, there is no damage to normal tissues other than a target tissue. Accordingly, there are advantages in that a recovery speed of a patient can quicken, a symptom after recovery can be mitigated, and so on.