Bistable organic materials in optoelectrical switches: Two-electrode   devices vs. organic field effect transistors
  The paper presents a short overview of research into properties of organic materials and structures that could be used in optoelectrical switches, i.e., switches in which changes in electrical properties are triggered by light of appropriate wavelengths. In particular, described are the structures acting by virtue of reversible photochemical reactions occurring in photochromic molecular materials. 
Juliusz Sworakowski and Petro Lutsyk
physics.chem-ph