Journal
OPTICS EXPRESS
Volume 24, Issue 16, Pages 17644-17653Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.017644
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Funding
- Scientific and Technological Research Council of Turkey (TUBITAK) [112E052, 113M815]
- Turkish Academy of Sciences Distinguished Young Scientist Award (TUBA GEBIP)
- BAGEP award
- FABED award
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Plasmonically enhanced absorbing structures have been emerging as strong candidates for photovoltaic (PV) devices. We investigate metal-insulator-metal (MIM) structures that are suitable for tuning spectral absorption properties by modifying layer thicknesses. We have utilized gold and silver nanoparticles to form the top metal (M) region, obtained by dewetting process compatible with large area processes. For the middle (I) and bottom (M) layers, different dielectric materials and metals are investigated. Optimum MIM designs are discussed. We experimentally demonstrate less than 10 percent reflection for most of the visible (VIS) and near infrared (NIR) spectrum. In such stacks, computational analysis shows that the bottom metal is responsible for large portion of absorption with a peak of 80 percent at 1000 nm wavelength for chromium case. (C) 2016 Optical Society of America
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