Quantum-dots optoelectronics for soft and transparent interactive devices

Orateur : Seong Jun KANG (Dept. Adv. Mat. for Information & Electronics, Kyung Hee Univ., South Korea)

Quantum-dots optoelectronics are considered as an emerging technology due to the potential applications including wearable, biocompatible and human interactive devices. Therefore, two types of quantum-dots optoelectronics, including quantum-dots light emitting diodes (QLEDs) and quantum-dots photosensors, will be discussed in this ta lk. To introduce QLEDs, the physics of device will be considered as well as the fabrication and optimization processes. The interfacial electronic structure will be discussed to improve the device performance. For the quantum-dots photosensors, a hybrid structure of quantum-dots and oxide semiconductor will be presented. A controllable band-gap of quantum-dots in a wide band-gap oxide semiconductor enabled to absorb and generate photocurrent with a selective wavelength of light. The device characteristics and origin of the photocurrent will be discussed in detail to develop highly transparent visible/IR-light photosensors. Finally, this talk will suggest a new type of interactive device that used quantum-dots.

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