Patent ID: 9634291
Date: 2017-04-25
CPC Classifications: H01L

Claim:
1. An organic light-emitting transistor (OLET) comprising: a substrate comprising a surface; a gate electrode formed over the surface; a gate insulating layer formed over the gate electrode; a first electrode formed over the surface of the substrate; a first semiconductor layer formed over the first electrode and having a first doping type; a second semiconductor layer formed over the first semiconductor layer and having a second doping type; an organic light emission layer formed over the second semiconductor layer and further over the gate insulating layer; and a second electrode formed over the organic light emission layer, wherein, in a cross-section taken by an imaginary plane perpendicular to the surface, the second semiconductor layer comprises an end portion directly contacting the gate insulating layer such that the end portion of the second semiconductor layer provides a conductive channel therethrough between the first electrode and the organic light emission layer upon application of sufficient electric voltage to the gate electrode.