Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7935145 | Solar Energy | 2018 | 7 Pages |
Abstract
We developed a transparent oxide-metal-oxide (OMO) structure using aluminum-doped zinc oxide and oxidized silver (AgOx) as a transparent electrode of a hydrogenated amorphous silicon (a-Si:H) thin-film solar cell for use in building-integrated photovoltaic (BIPV) windows. The oxygen (O2) addition (O2 flow rate) was optimized for a metal-to-dielectric intermediate-phase AgOx OMO to have high transparency and high conductivity, which were confirmed by finite-difference time-domain simulation. Using the AgOx OMO as a rear electrode, transparent a-Si:H solar cells were fabricated for BIPV window application. The performance of the fabricated cells showed highest bifacial efficiency (b-η) of 7.87% at AgOx OMO of 1â¯sccm, and highest average transmittance (T500-800, i.e., wavelength range: 500-800â¯nm) of 21.9% at AgOx OMO of 3â¯sccm, i.e., improvements from b-ηâ¯=â¯7.42% and T500-800â¯=â¯18.8% at Ag OMO of 0â¯sccm. The cell with the optimized AgOx OMO (3â¯sccm) achieved b-ηâ¯=â¯7.69% and the best figure of merit (product of b-η and T500-800) of 169%, i.e., 30% higher than the Ag OMO cell (139%). The developed AgOx OMO electrodes could be used in BIPV windows or in other optical devices requiring both high transparency and high conductivity.
Keywords
Related Topics
Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
Hyunjin Jo, Jo-Hwa Yang, Ji-hoon Lee, Jung-Wook Lim, Jaesung Lee, Myunhun Shin, Ji-Hoon Ahn, Jung-Dae Kwon,