InAlAs solar cell on a GaAs substrate employing a graded In xGa1-xAs-InP metamorphic buffer layer

Research output: Contribution to journalArticlepeer-review

Abstract

Single junction In0.52Al0.48As solar cells have been grown on a (100) GaAs substrate by employing a 1 μm thick compositionally graded InxGa1-xAs/InP metamorphic buffer layer to accommodate the 3.9% mismatch. Cells processed from the 0.8 μm thick InAlAs layers had photovoltaic conversion efficiency of 5% with an open circuit voltage of 0.72 V, short-circuit current density of 9.3 mA/cm2, and a fill factor of 74.5% under standard air mass 1.5 illumination. The threading dislocation density was estimated to be 3 × 108 cm -2.

Original languageEnglish
Article number033906
JournalApplied Physics Letters
Volume102
Issue number3
DOIs
Publication statusPublished - 21 Jan 2013

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Fingerprint

Dive into the research topics of 'InAlAs solar cell on a GaAs substrate employing a graded In xGa1-xAs-InP metamorphic buffer layer'. Together they form a unique fingerprint.

Cite this