| 초록 |
Organic phototransistors have been spotlighted because of their merits for lightweight, flexibility, and low temperature processes. Recently, our group demonstrated that all-polymer phototransistors with bulk heterojunction (BHJ) layers of electron-donating (p-type) polymers and electron-accepting (n-type) polymers could deliver better sensing performances due to the efficient charge separation by the BHJ concept. In addition, the spectral range of all-polymer phototransistors could be extended up to near infrared (NIR) by employing narrow bandgap conjugated polymers, while flexible all-polymer phototransistors exhibited good performances even after bending cycles. However, further efforts including new materials and chemical processes in terms of device fabrication are necessary for better performances and new types of devices. This presentation is going to demonstrate our recent efforts on all-polymer phototransistors that can provide ambipolar characteristics. |
