1. Field
Example embodiments relates to a fused polycyclic heteroaromatic compound, an organic thin film including the same, and an electronic device including the organic thin film.
2. Description of the Related Art
In general, flat display devices, e.g., liquid crystal displays or organic electroluminescent displays, are provided with a variety of thin film transistors (TFTs) to drive them. The TFT may include a gate electrode, source/drain electrodes, and a semiconductor layer that may be activated in response to the operation of the gate electrode. The semiconductor layer may include an organic semiconductor material that is controlled by a current between the source electrode and the drain electrode using an applied gate voltage.
Recently, as an organic semiconductor material for a channel of the thin film transistor, low-molecular-weight organic materials, e.g., pentacene or a polymer organic material (e.g., polythiophene), have been studied. However, the polymer organic materials have relatively low charge mobility and relatively high off-state leakage current. Further, relatively low-molecular-weight organic materials, e.g., pentacene, may have a relatively high charge mobility of about 3.2 to about 5.0 cm2/Vs or more, but may require a relatively expensive apparatus for vacuum deposition at the time of forming a thin film. Therefore, the low-molecular-weight organic material may be unsuitable for use in the preparation of a film having a relatively large area, and processibility may be undesirable.