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Article
Open AccessAssessing intra- and inter-molecular charge transfer excitations in non-fullerene acceptors using electroabsorption spectroscopy
Organic photovoltaic cells using Y6 non-fullerene acceptors have recently achieved high efficiency, and it was suggested to be attributed to the charge-transfer (CT) nature of the excitations in Y6 aggregates....
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Article
Record-high near-band-edge optical nonlinearities and two-level model correction of poled polymers by spectroscopic electromodulation and ellipsometry
The determination of nonlinearities near the band edge of organic and polymeric electro-optic (EO) materials is important from the viewpoint of molecular nonlinear optics (NLO) and photonic device applications...
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Article
Open AccessA generalized Stark effect electromodulation model for extracting excitonic properties in organic semiconductors
Electromodulation (EM) spectroscopy, a powerful technique to monitor the changes in polarizability p and dipole moment u of materials upon photo-excitation, can bring direct insight into the excitonic properties ...
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Article
Open AccessOn the degradation mechanisms of quantum-dot light-emitting diodes
The operating lifetime of blue quantum-dot light-emitting diodes (QLED) is currently a short slab for this emerging display technology. To pinpoint the origin of device degradation, here we apply multiple tech...
