TY  - JOUR
AU  - Duchamp, Martial
AU  - Lachmann, Martin
AU  - Boothroyd, Christopher Brian
AU  - Kovacs, Andras
AU  - Haug, F. J.
AU  - Ballif, C.
AU  - Dunin-Borkowski, R.
TI  - Compositional study of defects in microcrystalline silikon solar cells using spectral decomposition in the scanning Transmission electron microscope
JO  - Applied physics letters
VL  - 102
SN  - 1077-3118
CY  - Melville, NY
PB  - American Institute of Physics
M1  - FZJ-2014-01853
SP  - 133902
PY  - 2013
AB  - The chemical compositions of defective regions in microcrystalline thin film Si solar cells are studied using energy-dispersive X-ray spectroscopy and electron energy-loss spectroscopy (EELS) in the scanning transmission electron microscope. Nanometer-resolved chemical analysis reveals the presence of ZnO in micrometer-long defective regions. Due to the recent application of unmixing algorithm to EELS, the chemical compositions of the defective regions are determined objectively, without introducing artefacts from the fitting procedures. It is shown that the defective regions in the Si layer are filled by ZnO, which diffuses along voids that propagate from the bottom up to the top ZnO contacts.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000317240200091
DO  - DOI:10.1063/1.4800569
UR  - https://juser.fz-juelich.de/record/152033
ER  -