Abstract
We fabricated and characterized a nonpolar a-plane nitride-based solar cell on an r-plane sapphire substrate. The maximum external quantum efficiency of the solar cell reached 62% at a wavelength of approximately 400 nm. The open-circuit voltage, the short-circuit current density, and the fill factor of the solar cell were 0.9 V, 4.8 mA/cm2, and 57%, respectively. A conversion efficiency of 1.6% was obtained from the solar cell under a solar simulator of air mass 1.5G and an irradiation intensity of 155mW/cm2 at room temperature. © 2011 The Japan Society of Applied Physics.
Original language | English (US) |
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Journal | APPLIED PHYSICS EXPRESS |
Volume | 4 |
Issue number | 10 |
DOIs | |
State | Published - Oct 1 2011 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy
- General Engineering