Research
Light reflecting within thin films can masquerade as molecular signals in perovskite solar materials
Phys.org ·
The Brief
- A new theoretical study finds that an infrared signal thought to show how molecules in perovskite solar materials respond to light-generated charges can arise largely from how light travels through the thin film.
- The study is led by Jun Nishida, an assistant professor.
- The finding suggests that some molecular-response signals in perovskite infrared measurements may be optical artifacts rather than molecular behavior.
Why it matters
Researchers who use infrared measurements to study charge-driven molecular behavior in perovskite films may misattribute optical interference effects to molecular processes, so light propagation within the film needs to be considered when interpreting such signals.
Who’s affected
- researchers studying perovskite solar cells
- spectroscopists analyzing infrared data from thin films
- #perovskite
- #solar cells
- #infrared spectroscopy
- #thin films
- #optics
An infrared signal thought to reveal how molecules in perovskite solar materials respond to light-generated charges can arise largely from the way light travels through the thin film itself, a new theoretical study shows. Jun Nishida, assistant professor at the Institute for…