Optoelectronic memories based on photoconductive binary liquid crystal composed of electron donor and acceptor molecules

We investigated the optoelectronic memories and switches based on the charge trapping/detrapping effect for the binary liquid crystal R10DA composed of N-(4-n-decyloxybenzylidene)-4-dimethylaminoaniline (R10D) as an electron donor, and N-(4-n-decyloxybenzylidene)-4-nitroaniline (R10A) as an electron acceptor. The smectic phase of the liquid-crystalline R10DA led to a large improvement of the reversible charge trapping/detrapping effect. This photoconductive liquid crystal may have a promising possibility and new insight toward practical application for information storage and switching devices.