Title
Analysis of local minority carrier diffusion lengths in liquid phase crystallized silicon thin-film solar cells
Date Issued
01 January 2017
Access level
metadata only access
Resource Type
conference paper
Author(s)
Sonntag P.
Bokalic M.
Filipic M.
Frijnts T.
Amkreutz D.
Topic M.
RECH, BERND
Institut für Silizium Photovoltaik
Publisher(s)
Institute of Electrical and Electronics Engineers Inc.
Abstract
We developed a method to quantify the local minority carrier diffusion lengths in interdigitated back-contact solar cells having a 10 μm thick liquid phase crystallized (LPC) Si absorber by light-beam induced current (LBIC) measurements. The method is verified by 2-D simulations of the LBIC signals using ASPIN3. The effective minority carrier diffusion lengths determined this way range between 33-44 μm inside a grain, which proves that advanced cell concepts like an IBC system are well suited for the LPC absorbers. Furthermore, the method has the potential to help improving the optimization of contact system geometries and it may be used to understand the influences of different grain orientations and improve the LPC-Si absorber fabrication process.
Start page
1237
End page
1240
Language
English
OCDE Knowledge area
Física atómica, molecular y química
Subjects
DOI
10.1109/PVSC.2017.8366269
Scopus EID
2-s2.0-85048490973
PubMed ID
10.1109/PVSC.2017.8366269
ISBN of the container
978-150905605-7
Conference
2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
Sources of information: Directorio de Producción Científica Scopus