However, TOMDs with the data retention stability at high temperatures have never been reported so far, even though organic materials (films) are generally understood physically softer and weaker than inorganic materials (films) leading to relatively inferior stability at high temperatures232425. The weak high temperature characteristics of typical organic devices can be attributed to the fact that organic films in devices are made with organic molecules by weak intermolecular (interchain for polymers) interactions such as van der Waals forces, slightly strong hydrogen bonding, etc.26272829. In the case of flash memory devices commercialized with inorganic materials, the guaranteed retention stability (program-erase cycle) reaches 1,000 times and 10,000 times for the triple-level cells (TLCs) and the multi-level cells (MLCs), respectively303132. In addition, such inorganic flash memory devices can be operated at elevated temperatures up to 70 °C333435. Therefore, it is necessary for TOMDs to secure the data retention stability at high temperatures in regard to the positive consideration of commercialization.