Premium
Highly Circularly Polarized Photoluminescence over a Broad Spectral Range from a Calamitic, Hole‐Transporting, Chiral Nematic Glass and from an Indirectly Excited Dye
Author(s) -
Woon K.L.,
O'Neill M.,
Richards G.J.,
Aldred M.P.,
Kelly S.M.,
Fox A.M.
Publication year - 2003
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200304960
Subject(s) - materials science , liquid crystal , photoluminescence , birefringence , excited state , luminescence , dopant , optoelectronics , optics , emission spectrum , doping , spectral line , atomic physics , physics , astronomy
A highly birefringent, luminescent chiral nematic liquid crystal is shown to have an extremely broad photonic stop band (see dashed line in Figure) overlapping its emission spectrum. Highly circularly polarized photoluminescence is observed from the liquid crystal itself and from an indirectly excited dye dopant. The liquid crystal is hole‐transporting with a room‐temperature mobility of 4 × 10 –4 cm 2 V –1 s –1 .