Optimization of textured-dielectric coatings for crystalline-silicon solar cells

Gee, J M; Gordon, R; Liang, H

Title: Optimization of textured-dielectric coatings for crystalline-silicon solar cells

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Abstract

The authors report on the optimization of textured-dielectric coatings for reflectance control in crystalline-silicon (c-Si) photovoltaic modules. Textured-dielectric coatings reduce encapsulated-cell reflectance by promoting optical confinement in the module encapsulation; i.e., the textured-dielectric coating randomizes the direction of rays reflected from the dielectric and from the c-Si cell so that many of these reflected rays experience total internal reflection at the glass-air interface. Some important results of this work include the following: the authors demonstrated textured-dielectric coatings (ZnO) deposited by a high-throughput low-cost deposition process; they identified factors important for achieving necessary texture dimensions; they achieved solar-weighted extrinsic reflectances as low as 6% for encapsulated c-Si wafers with optimized textured-ZnO coatings; and they demonstrated improvements in encapsulated cell performance of up to 0.5% absolute compared to encapsulated planar cells with single-layer antireflection coatings.

Authors:

Gee, J M ^[1]; Gordon, R; Liang, H ^[2]

Sandia National Labs., Albuquerque, NM (United States). Photovoltaic System Components Dept.
Harvard Univ., Cambridge, MA (United States). Dept. of Chemistry

Publication Date:: Mon Jul 01 00:00:00 EDT 1996

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 257305

Report Number(s):: SAND-95-2805C; CONF-960513-13
ON: DE96011841; TRN: AHC29615%%1

DOE Contract Number:: AC04-94AL85000

Resource Type:: Conference

Resource Relation:: Conference: 25. photovoltaic solar energy conference, Washington, DC (United States), 13-17 May 1996; Other Information: PBD: [1996]

Country of Publication:: United States

Language:: English

Subject:: 14 SOLAR ENERGY; 36 MATERIALS SCIENCE; SILICON SOLAR CELLS; REFLECTIVE COATINGS; SOLAR CONTROL FILMS; FABRICATION; TEXTURE; OPTICAL PROPERTIES; ZINC OXIDES; SOLAR RADIATION; OPTICAL REFLECTION; TITANIUM OXIDES; DIELECTRIC MATERIALS; CHEMICAL VAPOR DEPOSITION

Citation Formats


                    Gee, J M, Gordon, R, and Liang, H. Optimization of textured-dielectric coatings for crystalline-silicon solar cells.  United States: N. p., 1996. 
        Web.

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                    Gee, J M, Gordon, R, & Liang, H. Optimization of textured-dielectric coatings for crystalline-silicon solar cells.  United States.

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                    Gee, J M, Gordon, R, and Liang, H. 1996.  
        "Optimization of textured-dielectric coatings for crystalline-silicon solar cells".  United States.  https://www.osti.gov/servlets/purl/257305.

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@article{osti_257305,

  title        = {Optimization of textured-dielectric coatings for crystalline-silicon solar cells},

  author       = {Gee, J M and Gordon, R and Liang, H},

  abstractNote = {The authors report on the optimization of textured-dielectric coatings for reflectance control in crystalline-silicon (c-Si) photovoltaic modules. Textured-dielectric coatings reduce encapsulated-cell reflectance by promoting optical confinement in the module encapsulation; i.e., the textured-dielectric coating randomizes the direction of rays reflected from the dielectric and from the c-Si cell so that many of these reflected rays experience total internal reflection at the glass-air interface. Some important results of this work include the following: the authors demonstrated textured-dielectric coatings (ZnO) deposited by a high-throughput low-cost deposition process; they identified factors important for achieving necessary texture dimensions; they achieved solar-weighted extrinsic reflectances as low as 6% for encapsulated c-Si wafers with optimized textured-ZnO coatings; and they demonstrated improvements in encapsulated cell performance of up to 0.5% absolute compared to encapsulated planar cells with single-layer antireflection coatings.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/257305},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Mon Jul 01 00:00:00 EDT 1996},

  month        = {Mon Jul 01 00:00:00 EDT 1996}

}

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