TY - GEN
T1 - Understanding the distribution of chlorine in perovskite solar cells via x-ray fluorescence microscopyl
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 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/11/18
Y1 - 2016/11/18
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
UR - http://www.scopus.com/inward/record.url?scp=85003702336&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85003702336&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2016.7749715
DO - 10.1109/PVSC.2016.7749715
M3 - Conference contribution
AN - SCOPUS:85003702336
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 802
EP - 803
BT - 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
Y2 - 5 June 2016 through 10 June 2016
ER -