Abstract
Spin-coating is extensively used in the lab-based manufacture of organic solar cells, including most of the record-setting solution-processed cells. We report the first direct observation of photoactive layer formation as it occurs during spin-coating. The study provides new insight into mechanisms and kinetics of bulk heterojunction formation, which may be crucial for its successful transfer to scalable printing processes.
Original language | British English |
---|---|
Pages (from-to) | 1923-1929 |
Number of pages | 7 |
Journal | Advanced Materials |
Volume | 25 |
Issue number | 13 |
DOIs | |
State | Published - 4 Apr 2013 |
Keywords
- bulk heterojunction
- in situ spectral reflectometry
- organic photovoltaics
- spin casting
- time-resolved grazing incidence small and wide angle x-ray scattering