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Novel compound semiconductor and usage for same

一种半导体、化合物的技术，应用在新型化合物半导体领域

Active Publication Date: 2013-12-18
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many conventional compound semiconductors cannot satisfy all these conditions at once

Method used

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  • Novel compound semiconductor and usage for same
  • Novel compound semiconductor and usage for same

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Experimental program
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Embodiment

[0071] Prepare In, Co, Sb, and Te as reagents and mix them with a mortar to prepare the composition In 0.25 co 3.88 Sb 11 Te spherical mixture. The above-mentioned mixed materials were put into a quartz tube to be vacuum-sealed, and then heated at 650° C. for 36 hours. The time taken to raise the temperature to 650°C is 1 hour and 30 minutes, and then In 0.25 co 3.88 Sb 11 Te powder.

[0072] A part of the composite material prepared above was formed into a cylinder with a diameter of 4 mm and a length of 15 mm. Thereafter, a pressure of 200 MPa was applied to the cylinder by using CIP (cold isostatic pressing). Subsequently, the obtained product was put into a quartz tube and sintered under vacuum for 12 hours.

[0073] For the sintered cylinders, the electrical conductivity (σ) was determined at specified temperature intervals by using a ZEM-3 (Ulvac, Inc). Measurement results such as figure 1 example shown. In addition, Seebeck coefficient (S) was measured by us...

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Abstract

The present invention discloses a novel compound semiconductor for use in a solar cell or as a thermoelectric material, and a usage for same. The compound semiconductor according to the present invention can be represented by following chemical formula: InxCo4-aSb12-zQz, wherein in the chemical formula, Q is at least one element selected from a group consisting of O, S, Se, and Te, and 0<x<=0.5, 0<a<=1, and 0<=z<=4.

Description

[0001] Cross references to related patent applications [0002] This application claims Korean Application No. 10-2011-0045348 filed on May 13, 2011, Korean Application No. 10-2011-0045349 filed on May 13, 2011, Korean Application No. .10-2011-0049609 and the priority of Korean Application No. 10-2012-0050260 filed May 11, 2012, the entire contents of which applications are hereby incorporated by reference into this application. technical field [0003] The invention relates to a novel compound semiconductor that can be used in solar cells or as thermoelectric materials, its preparation method and application. Background technique [0004] A compound semiconductor is not a single element such as silicon and germanium, but a compound containing two or more compound elements that can be used as a semiconductor. Various compound semiconductors have been developed and used in various fields. For example, compound semiconductors are applicable to thermoelectric conversion devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/00C01G15/00C01G51/00C01G30/00H01L31/042
CPCC01G51/006C01B19/002C01P2002/50C01P2006/32C01P2006/40H01L31/032H01L21/02565H01L21/02568H01L21/02614C01G53/006C01G55/002H10N10/853C07F11/00C07F15/06C07F9/90C07F5/00
Inventor 朴哲凞金兑训
Owner LG CHEM LTD