Alexander, A., Gaowei, M., Mistry, S., Walsh, J., Liu, F., Evans-Lutterodt, K., Stavitski, E., Pavlenko, V., Smedley, J., & Moody, N. (2021). Robust method for broadband efficiency enhancement of electron photocathodes using optical interferences. AIP Advances, 11(6), Article 065325. https://doi.org/10.1063/5.0050691
Alexander, A. ; Gaowei, M. ; Mistry, S. et al. / Robust method for broadband efficiency enhancement of electron photocathodes using optical interferences. In: AIP Advances. 2021 ; Vol. 11, No. 6.
@article{71f587ffdfaf473d93fba63d919ec3b8,
title = "Robust method for broadband efficiency enhancement of electron photocathodes using optical interferences",
abstract = "We demonstrate the key features of an interference cathode using both simulations and experiments. We deposit Cs3Sb photocathodes on Ag to produce an interference enhanced photocathode with 2-5× quantum efficiency (QE) enhancement using a robust procedure that requires only a smooth metal substrate and QE monitoring during growth. We grow both an interference cathode (Ag substrate) and a typical photocathode (Si reference substrate) simultaneously to confirm that the effects are due to optical interactions with the substrate rather than photocathode composition or surface electron affinity differences. Growing the cathodes until the QE converges shows both the characteristic interference peaks during growth and the identical limiting case where the cathode is “infinitely thick,” in agreement with simulations. We also grow a cathode until the QE on Ag peaks and then stop the growth, demonstrating broadband QE enhancement.",
author = "A. Alexander and M. Gaowei and S. Mistry and J. Walsh and F. Liu and K. Evans-Lutterodt and E. Stavitski and V. Pavlenko and J. Smedley and N. Moody",
note = "Publisher Copyright: {\textcopyright} 2021 Author(s).",
year = "2021",
month = jun,
day = "1",
doi = "10.1063/5.0050691",
language = "English",
volume = "11",
journal = "AIP Advances",
issn = "2158-3226",
publisher = "American Institute of Physics",
number = "6",
}
Alexander, A, Gaowei, M, Mistry, S, Walsh, J, Liu, F, Evans-Lutterodt, K, Stavitski, E, Pavlenko, V, Smedley, J & Moody, N 2021, 'Robust method for broadband efficiency enhancement of electron photocathodes using optical interferences', AIP Advances, vol. 11, no. 6, 065325. https://doi.org/10.1063/5.0050691
Robust method for broadband efficiency enhancement of electron photocathodes using optical interferences. / Alexander, A.; Gaowei, M.; Mistry, S. et al.
In:
AIP Advances, Vol. 11, No. 6, 065325, 01.06.2021.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Robust method for broadband efficiency enhancement of electron photocathodes using optical interferences
AU - Alexander, A.
AU - Gaowei, M.
AU - Mistry, S.
AU - Walsh, J.
AU - Liu, F.
AU - Evans-Lutterodt, K.
AU - Stavitski, E.
AU - Pavlenko, V.
AU - Smedley, J.
AU - Moody, N.
N1 - Publisher Copyright:
© 2021 Author(s).
PY - 2021/6/1
Y1 - 2021/6/1
N2 - We demonstrate the key features of an interference cathode using both simulations and experiments. We deposit Cs3Sb photocathodes on Ag to produce an interference enhanced photocathode with 2-5× quantum efficiency (QE) enhancement using a robust procedure that requires only a smooth metal substrate and QE monitoring during growth. We grow both an interference cathode (Ag substrate) and a typical photocathode (Si reference substrate) simultaneously to confirm that the effects are due to optical interactions with the substrate rather than photocathode composition or surface electron affinity differences. Growing the cathodes until the QE converges shows both the characteristic interference peaks during growth and the identical limiting case where the cathode is “infinitely thick,” in agreement with simulations. We also grow a cathode until the QE on Ag peaks and then stop the growth, demonstrating broadband QE enhancement.
AB - We demonstrate the key features of an interference cathode using both simulations and experiments. We deposit Cs3Sb photocathodes on Ag to produce an interference enhanced photocathode with 2-5× quantum efficiency (QE) enhancement using a robust procedure that requires only a smooth metal substrate and QE monitoring during growth. We grow both an interference cathode (Ag substrate) and a typical photocathode (Si reference substrate) simultaneously to confirm that the effects are due to optical interactions with the substrate rather than photocathode composition or surface electron affinity differences. Growing the cathodes until the QE converges shows both the characteristic interference peaks during growth and the identical limiting case where the cathode is “infinitely thick,” in agreement with simulations. We also grow a cathode until the QE on Ag peaks and then stop the growth, demonstrating broadband QE enhancement.
UR - http://www.scopus.com/inward/record.url?scp=85108314602&partnerID=8YFLogxK
U2 - 10.1063/5.0050691
DO - 10.1063/5.0050691
M3 - Article
AN - SCOPUS:85108314602
SN - 2158-3226
VL - 11
JO - AIP Advances
JF - AIP Advances
IS - 6
M1 - 065325
ER -
Alexander A, Gaowei M, Mistry S, Walsh J, Liu F, Evans-Lutterodt K et al. Robust method for broadband efficiency enhancement of electron photocathodes using optical interferences. AIP Advances. 2021 Jun 1;11(6):065325. doi: 10.1063/5.0050691
