Demonstration of a III–Nitride/Silicon Tandem Solar Cell

Autor: Wladek Walukiewicz, Iulian Gherasoiu, Vincent M. Kao, Kin Man Yu, Joel W. Ager, Lothar A. Reichertz
Rok vydání: 2009
Předmět:
Zdroj: Applied Physics Express. 2:122202
ISSN: 1882-0786
1882-0778
DOI: 10.1143/apex.2.122202
Popis: We report on the proof of principle of a III–nitride/silicon tandem solar cell. Photovoltaic activity is demonstrated in a 0.25 cm2 dual junction solar cell, made of p- and n-type GaN layers which were grown by molecular beam epitaxy (MBE) on a standard n-type Si wafer with an Al doped p-type surface. An open circuit voltage (Voc) of 2.4 V was measured under 1× sun AM1.5G condition with additional UV laser illumination of the GaN junction. Experiments under various illumination conditions were performed to verify that both junctions are active and working in series.
Databáze: OpenAIRE