Title :
Bonded InGaAs cells for microsystems enabled photovoltaics
Author :
Tauke-Pedretti, Anna ; Cederberg, Jeffrey G. ; Cruz-Campa, Jose Luis ; Alford, Charles ; Sanchez, Carlos A. ; Luna, Ian ; Nelson, Jeffrey S. ; Nielson, Gregory N.
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
Abstract :
InGaAs solar cells bonded to a Si substrate are demonstrated. These cells are 160 μm to 1300 μm in diameter and designed for integration in microsystems enabled photovoltaic systems. When compared to devices fabricated on substrate no degradation of cell performance was observed due to bonding. Additionally, the short circuit current for the cells correlated well with simulations indicating a low loss optical path through the bonding interface.
Keywords :
III-V semiconductors; elemental semiconductors; gallium arsenide; indium compounds; photovoltaic cells; short-circuit currents; solar cells; wafer bonding; bonded indium gallium arsenide solar cells; bonding interface; low loss optical path; microsystems enabled photovoltaic systems; short circuit current; Current measurement; Fabrication; Indium gallium arsenide; Indium phosphide; Silicon; Size measurement; Substrates; III–V solar cells; multi-junction solar cells; photovoltaic cells; wafer bonding;
Conference_Titel :
Photovoltaic Specialist Conference (PVSC), 2014 IEEE 40th
Conference_Location :
Denver, CO
DOI :
10.1109/PVSC.2014.6924979
