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Chinese Optics Letters

Chinese Optics Letters


  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 6 — Jun. 10, 2012
  • pp: 063101–

Solar cell performance improvement via photoluminescence conversion of Si nanoparticles

Miao Zhang, Yong Ren, Danchen Cheng, and Ming Lu  »View Author Affiliations

Chinese Optics Letters, Vol. 10, Issue 6, pp. 063101- (2012)

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Photoluminescence (PL) conversion of Si nanoparticles by absorbing ultraviolet (UV) lights and emitting visible ones has been used to improve the efficiency of crystalline Si solar cells. Si nanoparticle thin films are prepared by pulverizing porous Si in ethanol and then mixing the suspension with a SiO2 sol-gel (SOG). This SOG is spin-deposited onto the surface of the Si solar cells and dries in air. The short-circuit current as a function of Si nanoparticle concentration is investigated under UV illumination. The maximal increase is found at a Si concentration of 0.1 mg/mL. At such concentration and under the irradiation of an AM0 solar simulator, the photoelectric conversion efficiency of the crystalline Si solar cell is relatively increased by 2.16% because of the PL conversion.

© 2012 Chinese Optics Letters

OCIS Codes
(310.6860) Thin films : Thin films, optical properties
(350.6050) Other areas of optics : Solar energy
(160.4236) Materials : Nanomaterials
(310.6628) Thin films : Subwavelength structures, nanostructures

ToC Category:
Thin Films

Miao Zhang, Yong Ren, Danchen Cheng, and Ming Lu, "Solar cell performance improvement via photoluminescence conversion of Si nanoparticles," Chin. Opt. Lett. 10, 063101- (2012)

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