Results 181 to 190 of about 476,899 (295)

Exploring the Impact of the Presence of 9,9′‐Spirobifluorene Moieties on the Performance of Carbonyl‐Based Multiresonant Thermally Activated Delayed Fluorescence Organic Light‐Emitting Diodes

open access: yesAdvanced Optical Materials, EarlyView.
The impact of decorating the multiresonant thermally activated delayed fluorescence (MR‐TADF) emitter DiKTa with 9,9′‐spirobifluorene units is explored with regard to number, position, and incorporation type. Four novel sky‐blue narrowband MR‐TADF emitters are developed, and in the OLED devices, a structure‐property relationship is observed with ...
Janine Haug   +11 more
wiley   +1 more source

Anomalous Refractive Index Modulation and Giant Birefringence in 2D Ferrielectric CuInP2S6

open access: yesAdvanced Optical Materials, EarlyView.
An unprecedented anomalous thickness‐dependent change in refractive index is reported in CuInP2S6 (δn$\delta{\rm n}$∼23.2%). Furthermore, CuInP2S6 also exhibits giant birefringence in the blue‐ultraviolet regime (|nOOP ‐ nIP|∼1.24), the largest of any known material within this wavelength regime.
Houssam El Mrabet Haje   +5 more
wiley   +1 more source

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