| abstract |
An organic device has a hole current-electron currentnconversion layer which comprises a laminate of an electronntransportation section and a hole transportation section.nThe electron transportation section includes a chargentransfer complex formed upon an oxidation-reductionnreaction between a reduced low work function metal and annelectron-accepting organic compound, the reduced metalnbeing produced upon an in-situ thermal reduction reactionncaused upon contact, through lamination or mixing by codeposition,nof an organic metal complex compound or anninorganic compound containing at least one metal ionnselected from ions of low work function metals having anwork function of not more than 4.0 eV, and a thermallynreducible metal capable of reducing a metal ion containednin the organic metal complex compound or the inorganicncompound in vacuum to the corresponding metal state, andnthe electron transportation section having the electron-acceptingnorganic compound in the state of radical anions.nThe hole transportation section includes an organicncompound having an ionization potential of less than 5.7 eVnand an electron-donating property and an inorganic ornorganic substance capable of forming a charge transferncomplex upon its oxidation-reduction reaction with thenorganic compound, the organic compound and the inorganic or norganic substance being contacted through lamination ornmixing, and the electron-donating organic compound is innthe state of radical cations. |