신재생에너지 (New & Renewable Energy)

  • 제5권3호
  • /
  • Pages.26-31
  • /
  • 2009
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  • 1738-3935(pISSN)
  • /
  • 2713-9999(eISSN)
한국신·재생에너지학회 (Korean Society for New and Renewable Energy)
권호 표지

집광에 의한 GaAs/AlGaAs태양전지의 출력 증대 연구

A Study on the Output Power Enhancement of GaAs/AlGaAs Solar Cell using Concentration Method

  • 이동호 (고려대학교 전자공학, 한국과학기술연구원 나노소자연구센터) ;
  • 김영환 (한국과학기술연구원 나노소자연구센터) ;
  • 송진동 (한국과학기술연구원 스핀트로닉스연구단) ;
  • 김성일 (한국과학기술연구원 나노소자센터)
  • 발행 : 2009.09.25
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초록

Using MBE growth method, GaAs/AlGaAs solar cell structure was grown. Deposited electrodes are Au/Ni/Ge for n-type and Au/Pt/Ti for p-type electrodes were deposited by E-beam evaporator. Indoor light concentrators were devised and fabricated in order to concentrate artificial solar rays. Also mirror and prism and Fresnel lens concentration system with solar simulator were devised and fabricated. Results of solar cell characteristics were measured with shutting system which can control the amount of light. Maximum power density was 2.13 W/$cm^2$ and maximum concentration was 124 sun, when mirror with Fresnel lens was used at $7854\;mm^2$ of shutter hole.

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