Beneficial effects of the aluminum alloy process as practiced in the photovoltaic device fabrication laboratory

PDF Version Also Available for Download.

Description

The aluminum alloy process implemented in Sandia`s Photovoltaic Device Fabrication Laboratory (PDFL) has major beneficial effects on the performance of commercial multicrystalline-silicon (mc-Si) substrates. Careful analysis of identically processed cells (except for the alloyed layer) in matched mc-Si substrates clearly indicates that the majority of the benefit arises from improved bulk minority carrier diffusion length. Based on spectral response measurements and PC-1D modeling the authors have observed improvements due to the alloy process of up to 400% in the average diffusion length in moderate-area cells and around 50% in large-area cells. The diffusion length is dramatically improved in the interior ... continued below

Physical Description

8 p.

Creation Information

Schubert, W.K. July 1, 1995.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

  • Schubert, W.K. Sandia National Labs., Albuquerque, NM (United States). Photovoltaic Systems Components Dept.

Sponsor

Publisher

  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

The aluminum alloy process implemented in Sandia`s Photovoltaic Device Fabrication Laboratory (PDFL) has major beneficial effects on the performance of commercial multicrystalline-silicon (mc-Si) substrates. Careful analysis of identically processed cells (except for the alloyed layer) in matched mc-Si substrates clearly indicates that the majority of the benefit arises from improved bulk minority carrier diffusion length. Based on spectral response measurements and PC-1D modeling the authors have observed improvements due to the alloy process of up to 400% in the average diffusion length in moderate-area cells and around 50% in large-area cells. The diffusion length is dramatically improved in the interior of the silicon grains in alloyed substrates, resulting in the majority of the recombination occurring at the grain boundaries and localized areas with high defect densities.

Physical Description

8 p.

Notes

OSTI as DE95015432

Source

  • 5. workshop on the role of impurities and defects in silicon device processing, Copper Mountain, CO (United States), 13-16 Aug 1995

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Other: DE95015432
  • Report No.: SAND--95-1602C
  • Report No.: CONF-9508143--1
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/102124 | External Link
  • Office of Scientific & Technical Information Report Number: 102124
  • Archival Resource Key: ark:/67531/metadc621480

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • July 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

Description Last Updated

  • April 14, 2016, 7:25 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 3

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

Citations, Rights, Re-Use

Schubert, W.K. Beneficial effects of the aluminum alloy process as practiced in the photovoltaic device fabrication laboratory, report, July 1, 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc621480/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.