Recent Liquid Crystal Photonics Research in HKUST

Chigrinov, Vladimir G.; Kwok, Hoi Sing; Poon, Andrew W.; Bermak, Amine

doi:10.4302/plp.2011.1.02

Cited by 1 publication

(1 citation statement)

References 10 publications

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“…By now, a lot of photoreactive materials have been employed for the orientation of LC molecules exhibiting photoisomerization, photocross‐linking, and photodecomposition. In this work, we fabricated a luminescent LC device by using a photoisomerization sulfonic azo‐dye, SD1, to obtain the photopattern in the LC device. The relationship between concentrations of the luminescent dopant TPE‐PPE and the intensity of photoluminescence was studied, and the AIE effect in our system was obviously demonstrated in the PL study.…”

Section: Introductionmentioning

confidence: 99%

Aggregate‐induced emission in light‐emitting liquid crystal display technology

et al. 2015

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Nowadays, liquid crystal displays (LCDs) with light‐emission are considered as energy‐efficient devices and are promising alternatives to conventional LCDs. To realize such possibility, strong fluorescent materials with a dichroic properties are required. Aggregate‐induced emission (AIE) is an unusual photophysical phenomenon shown by some luminogenic materials that will be highly emissive in their aggregate state. In this work, we studied the AIE effect of a luminescent liquid crystalline molecule TPE‐PPE in our LC system as a luminophore dopant. The result showed the excellent AIE effect that higher concentration of luminogen in the nematic LC host induced stronger luminescent intensity. Through exposure of a photoisomeriable alignment material sulfonic‐dye‐1, the photopatterning of a light‐emitting LC device was achieved with the use of the TPE‐PPE/nematic LC mixture.

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Section: Introductionmentioning

confidence: 99%