[Report] Double-heterojunction nanorod light-responsive LEDs for display applications
Dual-functioning displays, which can simultaneously transmit and receive information and energy through visible light, would enable enhanced user interfaces and device-to-device interactivity. We demonstrate that double heterojunctions designed into colloidal semiconductor nanorods allow both efficient photocurrent generation through a photovoltaic response and electroluminescence within a single device. These dual-functioning, all-solution-processed double-heterojunction nanorod light-responsive light-emitting diodes open feasible routes to a variety of advanced applications, from touchless interactive screens to energy harvesting and scavenging displays and massively parallel display-to-display data communication. Authors: Nuri Oh, Bong Hoon Kim, Seong-Yong Cho, Sooji Nam, Steven P. Rogers, Yiran Jiang, Joseph C. Flanagan, You Zhai, Jae-Hwan Kim, Jungyup Lee, Yongjoon Yu, Youn Kyoung Cho, Gyum Hur, Jieqian Zhang, Peter Trefonas, John A. Rogers, Moonsub Shim