Organic thin film transistor and flat panel display device using the same
AssigneeSamsung Mobile Display Co., Ltd.
InventorsHun Jung Lee, Sang Il Park, Min Chul Suh
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Abstract
An organic thin film transistor and a flat panel display device using the same are disclosed. The organic thin film transistor includes an inorganic layer doped with an impurity in a region of the outer surfaces of source and drain electrodes, or the source and drain electrodes is formed by an inorganic material doped with an impurity. According to the organic thin film transistor, an energy barrier is generated when contact between the organic semiconductor and the source and drain electrodes is removed to form an ohmic contact.
Claims22
An organic thin film transistor comprising:
- a gate electrode;
- a gate insulator layer insulating the gate electrode;
- an organic semiconductor layer contacting the gate insulator layer;
- an inorganic layer contacting the organic semiconductor layer;
- and
- source and drain electrodes contacting the inorganic layer,
- wherein the inorganic layer is doped with an impurity and provided between the source and drain electrodes and the organic semiconductor layer, and
- wherein the inorganic layer comprises germanium.
An organic thin film transistor comprising:
- a gate electrode;
- a gate insulator layer insulating the gate electrode;
- an organic semiconductor layer contacting the gate insulator layer;
- and
- source and drain electrodes contacting the organic semiconductor layer, the source and drain electrodes including an inorganic semiconductor material doped with an impurity,
- wherein the source and drain electrodes and the organic semiconductor layer are formed from separate layers, and
- wherein the inorganic semiconductor material comprises germanium.
A flat panel display device comprising:
- an organic thin film transistor electrically connected to a light emission device and adapted to drive the same, the organic thin film transistor including
- source and drain electrodes,
- an inorganic layer contacting the source and drain electrodes, and
- an organic semiconductor layer contacting the inorganic layer, the inorganic layer being doped with an impurity,
- wherein the inorganic layer is between the source and drain electrodes and the organic semiconductor layer, and
- wherein the inorganic layer comprises germanium.
A flat panel display device comprising:
- an organic thin film transistor electrically connected to a light emission device and adapted to drive the same,
- the organic thin film transistor including source and drain electrodes and an organic semiconductor layer contacting the source and drain electrodes including an inorganic semiconductor material doped with an impurity,
- wherein the source and drain electrodes and the organic semiconductor layer are formed from separate layers, and
- wherein the inorganic semiconductor material comprises germanium.
Dependencies are inferred from the claim text.