Development of Manufacturable Process to Deposit Metal Matrix Composites on Inverted Metamorphic Multijunction Solar Cells

Abstract

We have (1) established an electrodeposition procedure for silver with bright finish, which is associated with better electrical and physical properties than non-bright finish, (2) increased silver adhesion strength to gallium arsenide substrates using a titanium adhesion layer, and (3) characterized hardness and electrical conductivity of plated silver before and after rapid thermal annealing to find the optimum annealing conditions. We have also established a deposition protocol for silver/carboxylated carbon nanotube layer-by-layer composite films. We observed that the silver erosion during carboxylated carbon nanotube deposition leads to significant porosity within the composite films. We plan to explore amine-terminated carbon nanotubes in the near future to eliminate the porosity and study how different composite microstructures affect the mechanical and electrical properties of composite films.

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Document Details

Document Type
Technical Report
Publication Date
Jan 14, 2015
Accession Number
ADA614262

Entities

People

  • Sang M Han

Organizations

  • University of New Mexico

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Carbon Nanotube Composites
  • Carbon Nanotubes
  • Composite Materials
  • Conductivity
  • Current Density
  • Electrical Conductivity
  • Electrodeposition
  • Materials
  • Materials Processing
  • Mechanical Properties
  • Metal Matrix Composites
  • Metals
  • Physical Properties
  • Plating
  • Solar Cells
  • Spacecraft

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Nanocomposite Materials Science
  • Semiconductor Device Technology

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene