Photocurrent Characteristic of CdTe nanoparticles

CdTe 나노입자를 이용한 광전류 특성

  • Kim, Jin-Hyong (Department of Electrical Engineering, Korea University) ;
  • Cho, Kyoung-Ah (Department of Electrical Engineering, Korea University) ;
  • Kim, Hyun-Suk (Department of Electrical Engineering, Korea University) ;
  • Lee, Joon-Woo (Department of Electrical Engineering, Korea University) ;
  • Park, Byoung-Jun (Department of Electrical Engineering, Korea University) ;
  • Kim, Sang-Sig (Department of Electrical Engineering, Korea University)
  • Published : 2004.11.11

Abstract

CdTe nanoparticles were synthesized in aqueous solution by colloidal method. The absorption and photoluminescence(PL) spectrum of the synthesized CdTe nanoparticles revealed the strong exitonic peak in the visible region. Photocurrent of CdTe nanoparticles were observed in the structure of Al/CdTe/ITO that was fabricated by spin coating of CdTe nanoparticles. The wavelength dependence of photocurrent was very similar to the absorption spectrum, indicating the charges generated by the absorption of photons give direct contribution to photocurrent. This study suggests that CdTe nanoparticles are very prospective materials for optoelectronics.

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