TY - GEN
T1 - Understanding the distribution of chlorine in perovskite solar cells via X-ray fluorescence microscopy
AU - Luo, Yanqi
AU - Gamliel, Shany
AU - Nijem, Sally
AU - Aharon, Sigalit
AU - Holt, Martin
AU - Stripe, Benjamin
AU - Rose, Volker
AU - Bertoni, Mariana
AU - Etgar, Lioz
AU - Fenning, David P.
N1 - Funding Information:
YL acknowledges the support of the UC Carbon Neutrality Initiative, and DPF start up funds from the UC San Diego. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.
Publisher Copyright:
© 2017 IEEE.
PY - 2017
Y1 - 2017
N2 - Spatial heterogeneities in the chemical makeup of thin film photovoltaic devices are pivotal in determining device efficiency. In this study, the presence of chlorine is identified in perovskite films synthesized with Cl-containing precursors by means of nanoprobe X-ray fluorescence (Nano-XRF). Additionally, a spatial variation in the Cl incorporation is observed within a given film, and the standard deviation of Cl:I ratio across the film is large. Using Nano-XRF, the Cl incorporation in methylammonium lead iodide perovskite films can be manipulated by precursor stoichiometry ratio.
AB - Spatial heterogeneities in the chemical makeup of thin film photovoltaic devices are pivotal in determining device efficiency. In this study, the presence of chlorine is identified in perovskite films synthesized with Cl-containing precursors by means of nanoprobe X-ray fluorescence (Nano-XRF). Additionally, a spatial variation in the Cl incorporation is observed within a given film, and the standard deviation of Cl:I ratio across the film is large. Using Nano-XRF, the Cl incorporation in methylammonium lead iodide perovskite films can be manipulated by precursor stoichiometry ratio.
KW - Cl containing precursors
KW - Elemental distribution
KW - Nano-XRF
KW - Perovskite solar cells
KW - Synchrotron based technique
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U2 - 10.1109/PVSC.2017.8366121
DO - 10.1109/PVSC.2017.8366121
M3 - Conference contribution
AN - SCOPUS:85048505226
T3 - 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
SP - 730
EP - 734
BT - 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 44th IEEE Photovoltaic Specialist Conference, PVSC 2017
Y2 - 25 June 2017 through 30 June 2017
ER -