Abstract
Unveiling the correlation between elemental composition, fermi-level splitting, and charge collection in perovskite solar cells (PSCs) exposed to different environments is crucial to understanding the origin of defects. This will enable defect engineering to achieve high performing and long lasting perovskite solar cells. In this contribution we measured for the first time the spatial distribution and charge collection efficiency at the nano-scale by synchrotron-based x-ray fluorescence (XRF) and x-ray beam induced current (XBIC) with sub-grain resolution, and we observe a correlation between Pb/I ratio and charge collection efficiency. In contrast to other thin-film solar cells, perovskite solar cells are highly sensitive to ambient conditions (atmosphere and illumination). As the XRF and XBIC measurements were conducted in vacuum under an x-ray source illumination, the impact of measurement conditions on the measurements need to be taken into account. Furthermore, necessary conditions for quantification of XRF/XBIC measurements are not fulfilled for perovskite solar cells. Therefore, we will discuss fundamentals of XRF/XBIC measurements of perovskite solar cells that will enable reliable quantitative, high-resolution measurements of elemental distribution and charge collection.
| Original language | English (US) |
|---|---|
| Title of host publication | 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1191-1196 |
| Number of pages | 6 |
| Volume | 2016-November |
| ISBN (Electronic) | 9781509027248 |
| DOIs | |
| State | Published - Nov 18 2016 |
| Event | 43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 - Portland, United States Duration: Jun 5 2016 → Jun 10 2016 |
Other
| Other | 43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 |
|---|---|
| Country | United States |
| City | Portland |
| Period | 6/5/16 → 6/10/16 |
Fingerprint
Keywords
- charge collection
- Perovskite
- solar cell
- XBIC
- XRF
ASJC Scopus subject areas
- Control and Systems Engineering
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering
Cite this
Elemental distribution and charge collection at the nanoscale on perovskite solar cells. / Stuckelberger, Michael; Nietzold, Tara; Hall, Genevieve N.; West, Bradley; Werner, Jeremie; Niesen, Bjoern; Ballif, Christophe; Rose, Volker; Fenning, David P.; Bertoni, Mariana.
2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016. Vol. 2016-November Institute of Electrical and Electronics Engineers Inc., 2016. p. 1191-1196 7749803.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Elemental distribution and charge collection at the nanoscale on perovskite solar cells
AU - Stuckelberger, Michael
AU - Nietzold, Tara
AU - Hall, Genevieve N.
AU - West, Bradley
AU - Werner, Jeremie
AU - Niesen, Bjoern
AU - Ballif, Christophe
AU - Rose, Volker
AU - Fenning, David P.
AU - Bertoni, Mariana
PY - 2016/11/18
Y1 - 2016/11/18
N2 - Unveiling the correlation between elemental composition, fermi-level splitting, and charge collection in perovskite solar cells (PSCs) exposed to different environments is crucial to understanding the origin of defects. This will enable defect engineering to achieve high performing and long lasting perovskite solar cells. In this contribution we measured for the first time the spatial distribution and charge collection efficiency at the nano-scale by synchrotron-based x-ray fluorescence (XRF) and x-ray beam induced current (XBIC) with sub-grain resolution, and we observe a correlation between Pb/I ratio and charge collection efficiency. In contrast to other thin-film solar cells, perovskite solar cells are highly sensitive to ambient conditions (atmosphere and illumination). As the XRF and XBIC measurements were conducted in vacuum under an x-ray source illumination, the impact of measurement conditions on the measurements need to be taken into account. Furthermore, necessary conditions for quantification of XRF/XBIC measurements are not fulfilled for perovskite solar cells. Therefore, we will discuss fundamentals of XRF/XBIC measurements of perovskite solar cells that will enable reliable quantitative, high-resolution measurements of elemental distribution and charge collection.
AB - Unveiling the correlation between elemental composition, fermi-level splitting, and charge collection in perovskite solar cells (PSCs) exposed to different environments is crucial to understanding the origin of defects. This will enable defect engineering to achieve high performing and long lasting perovskite solar cells. In this contribution we measured for the first time the spatial distribution and charge collection efficiency at the nano-scale by synchrotron-based x-ray fluorescence (XRF) and x-ray beam induced current (XBIC) with sub-grain resolution, and we observe a correlation between Pb/I ratio and charge collection efficiency. In contrast to other thin-film solar cells, perovskite solar cells are highly sensitive to ambient conditions (atmosphere and illumination). As the XRF and XBIC measurements were conducted in vacuum under an x-ray source illumination, the impact of measurement conditions on the measurements need to be taken into account. Furthermore, necessary conditions for quantification of XRF/XBIC measurements are not fulfilled for perovskite solar cells. Therefore, we will discuss fundamentals of XRF/XBIC measurements of perovskite solar cells that will enable reliable quantitative, high-resolution measurements of elemental distribution and charge collection.
KW - charge collection
KW - Perovskite
KW - solar cell
KW - XBIC
KW - XRF
UR - http://www.scopus.com/inward/record.url?scp=85003549276&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85003549276&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2016.7749803
DO - 10.1109/PVSC.2016.7749803
M3 - Conference contribution
AN - SCOPUS:85003549276
VL - 2016-November
SP - 1191
EP - 1196
BT - 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
ER -