@inproceedings{cef9ceebe8614c14b080aa91d8bdce13,
title = "Broadband photoelectric hot carrier collection with wafer-scale metallic-semiconductor photonic crystals",
abstract = "Photoelectric hot carrier generation in metal-semiconductor junctions can enable optical-to-electrical energy conversion at photon energies below the bandgap of the semiconductor. Here, we present the simulated and experimental results of our wafer-scale Au/TiO2 metallic-semiconductor photonic crystal (MSPhC). We demonstrate a broadband sub-bandgap photoresponse with a FWHM of 235 nm centered at 590 nm due to surface plasmon absorption, and we also show a photoresponse enhancement factor of 4.5 at 639 nm compared to a flat chip. Photoresponse is also shown to increase with decreasing metal thickness down to 13 nm. Applications of our results could lead to low-cost and robust photoelectrochemical and thermo-photovoltaic devices.",
keywords = "hot electrons, photonic crystal, photovoltaic cells, sub-bandgap absorption, surface plasmon",
author = "Chou, {Jeffrey B.} and Fenning, {David P.} and Yu Wang and Polanco, {Miguel Angel Mendez} and Jonathan Hwang and Asmaa El-Faer and Firas Sammoura and Jaime Viegas and Mahmoud Rasras and Kolpak, {Alexie M.} and Yang Shao-Horn and Kim, {Sang Gook}",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 ; Conference date: 14-06-2015 Through 19-06-2015",
year = "2015",
month = dec,
day = "14",
doi = "10.1109/PVSC.2015.7356229",
language = "British English",
series = "2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015",
address = "United States",
}
