Comparative studies of photochemical cross-linking methods for stabilizing the bulk hetero-junction morphology in polymer solar cells
Publication: Research - peer-review › Journal article – Annual report year: 2012
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Comparative studies of photochemical cross-linking methods for stabilizing the bulk hetero-junction morphology in polymer solar cells. / Carlé, Jon Eggert; Andreasen, Birgitta; Tromholt, Thomas; Vesterager Madsen, Morten; Norrman, Kion; Jørgensen, Mikkel; Krebs, Frederik C.
In: Journal of Materials Chemistry, Vol. 22, No. 46, 2012, p. 24417-24423.Publication: Research - peer-review › Journal article – Annual report year: 2012
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TY - JOUR
T1 - Comparative studies of photochemical cross-linking methods for stabilizing the bulk hetero-junction morphology in polymer solar cells
A1 - Carlé,Jon Eggert
A1 - Andreasen,Birgitta
A1 - Tromholt,Thomas
A1 - Vesterager Madsen,Morten
A1 - Norrman,Kion
A1 - Jørgensen,Mikkel
A1 - Krebs,Frederik C
AU - Carlé,Jon Eggert
AU - Andreasen,Birgitta
AU - Tromholt,Thomas
AU - Vesterager Madsen,Morten
AU - Norrman,Kion
AU - Jørgensen,Mikkel
AU - Krebs,Frederik C
PB - Royal Society of Chemistry
PY - 2012
Y1 - 2012
N2 - We are here presenting a comparative study between four different types of functionalities for cross-linking. With relatively simple means bromine, azide, vinyl and oxetane could be incorporated into the side chains of the low band-gap polymer TQ1. Cross-linking of the polymers was achieved by UV-light illumination to give solvent resistant films and reduced phase separation and growth of PCBM crystallites in polymer:PCBM films. The stability of solar cells based on the cross-linked polymers was tested under various conditions. This study showed that cross-linking can improve morphological stability but that it has little influence on the photochemical stability which is also decisive for stable device operation under constant illumination conditions.
AB - We are here presenting a comparative study between four different types of functionalities for cross-linking. With relatively simple means bromine, azide, vinyl and oxetane could be incorporated into the side chains of the low band-gap polymer TQ1. Cross-linking of the polymers was achieved by UV-light illumination to give solvent resistant films and reduced phase separation and growth of PCBM crystallites in polymer:PCBM films. The stability of solar cells based on the cross-linked polymers was tested under various conditions. This study showed that cross-linking can improve morphological stability but that it has little influence on the photochemical stability which is also decisive for stable device operation under constant illumination conditions.
U2 - 10.1039/c2jm34284g
DO - 10.1039/c2jm34284g
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
SN - 0959-9428
IS - 46
VL - 22
SP - 24417
EP - 24423
ER -