(Georgia Institute of Technology, 2009-04)
Haldi, Andreas; Kim, Jung B.; Domercq, Benoit; Kulkarni, Abhishek P.; Barlow, Stephen; Gifford, Angela P.; Jenekhe, Samson A.; Marder, Seth R.; Kippelen, Bernard
A 7x11 pixel blue OLED display was fabricated using a patterned indium-tin-oxide (ITO) substrate. The fabrication process for an M x N pixel organic light-emitting diode (OLED) video display including an electrical insulating layer and a physical pixel separator layer is presented. An efficient and thermally stable blue fluorescent organic material, 6, 6'-bis((2-p-biphenyl)-4-phenylquinoline) (B2PPQ), was used in combination with an evaporated hole-transport small molecule with a high ionization potential.
(Georgia Institute of Technology, 2004-11)
Ramos-Ortiz, Gabriel; Cha, Myoungsik; Kippelen, Bernard; Walker, Gregory A.; Barlow, Stephen; Marder, Seth R.
We report on real-time, time-gated, direct imaging through scattering media with an attenuation of 14 mean-free paths by use of third-harmonic generation in the eye-safe and telecommunication-compatible near-IR spectral region (1550 nm).
We report on photorefractive polymer composites that exhibit stable dynamic properties under continuous operation. These materials are based on a bis-triarylamine side-chain polymer matrix with a low ionization potential. The evolution of the response time for exposures up to 4 kJ∕cm² was studied and compared with that obtained in poly(n-vinylcarbazole) (PVK) based composites. In the composites, operational stability is combined with video-rate compatible dynamics, large dynamic range at moderate fields, and long shelf lifetimes.