Answers are grounded in this paper and cite their sources.
Photorefractivity is observed in a multifunctional layered material consisting of a nematic 5CB/8OCB liquid crystal thin film doped with the chromophoric electron acceptor 1,7-bis(N-piperidinyl)-3,4;9,10-perylenebis(dicarboximide), which strongly absorbs red light, and a rubbed film of the conjugated polymer BEH-PPV, which aligns the doped liquid crystal as well as functions as an electron donor and charge transport agent.
No takes yet. Share an insight, caveat, or question.
Fuller et al. (2002) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: