Paper No S16.1: SVGA Bidirectional OLED Microdisplay for Near‐to‐Eye Projection

Vogel, Uwe; Wartenberg, Philipp; Richter, B.; Brenner, Stephan; Thomschke, Michael; Fehse, Karsten; Baumgarten, Judith

doi:10.1002/sdtp.10543

Cited by 5 publications

(6 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, separate light-detective and photoemissive devices were combined into a single system that can perform both photoresponse and electroluminescence. As per our literature survey, there are only a few published reports on light-emitting phototransistors upconverting infrared light into visible light fabricated by direct combination of an inorganic photodetector and an organic light-emitting diode. − However, not only do these designs require multiple devices and a cumbersome fabrication process, but also the reported external quantum efficiency (EQE) is not high. , Notably, Oh et al . demonstrated light-responsive LEDs by using double-heterojunction nanorods (DHNRs), which can separate the photogenerated excitons and radiative recombination of excitons within a single device .…”

mentioning

confidence: 99%

“…4−6 However, not only do these designs require multiple devices and a cumbersome fabrication process, but also the reported external quantum efficiency (EQE) is not high. 6,7 Notably, Oh et al demonstrated light-responsive LEDs by using doubleheterojunction nanorods (DHNRs), which can separate the photogenerated excitons and radiative recombination of excitons within a single device. 1 However, the reported device used complicated fabrication techniques, raising concerns about cost-effectiveness, reliability, reproducibility, and durability.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Graphene Sandwich Stable Perovskite Quantum-Dot Light-Emissive Ultrasensitive and Ultrafast Broadband Vertical Phototransistors

et al. 2019

View full text Add to dashboard Cite

Dual-functional devices that can simultaneously detect light and emit light have a tremendous appeal for multiple applications, including displays, sensors, defense, and high-speed optical communication. Despite the tremendous efforts of scientists, the progress of integration of a phototransistor, where the built-in electric field separates the photogenerated excitons, and a light-emitting diode, where the radiative recombination can be enhanced by band offset, into a single device remains a challenge. Combining the superior properties of perovskite quantum dots (PQDs) and graphene, here we report a light-emissive, ultrasensitive, ultrafast, and broadband vertical phototransistor that can simultaneously act as an efficient photodetector and light emitter within a single device. The estimated value of the external quantum efficiency of the vertical phototransistor is ∼1.2 × 10 10 % with a photoresponsivity of >10 9 A W −1 and a response time of <50 μs, which exceed all the presently reported vertical phototransistor devices. We also demonstrate that the modulation of the Dirac point of graphene efficiently tunes both amplitude and polarity of the photocurrent. The device exhibits a green emission having a quantum efficiency of 5.6%. The moisture-insensitive and environmentally stable, light-emissive, ultrafast, and ultrasensitive broadband phototransistor creates a useful route for dual-functional optoelectronic devices.

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

Graphene Sandwich Stable Perovskite Quantum-Dot Light-Emissive Ultrasensitive and Ultrafast Broadband Vertical Phototransistors

et al. 2019

View full text Add to dashboard Cite

show abstract

“…4a). Alternatively, a bidirectional Fraunhofer display of the same size was used 55 (Extended Data Fig. 4b).…”

Section: Optical Designmentioning

confidence: 99%

Competition of cortical clusters during on-demand visual learning in immersive virtual reality

Rozsa,

Judák,

Dobos

et al. 2023

Preprint

View full text Add to dashboard Cite

Neural circuits support rapid visual learning. However, due to technical roadblocks, it is not known how visual circuits represent multiple features or how behaviorally relevant representations are selected for long-term memory. Here we developed Moculus, a head-mounted virtual reality platform for mice that covers the entire visual field, and allows binocular depth perception and full immersion. This controllable environment, combined with fast acousto-optical imaging, affords rapid visual learning and the uncovering of novel circuit substrates: both the control and reinforcement-associated visual cue coding neuronal assemblies are extended transiently to a near-saturating level. They formed partially orthogonal and overlapping clusters centered around hub cells with higher and earlier ramp-like responses, as well as locally increased connectivity. This temporally maximizes computational capability and allows competition between assemblies that encode behaviorally relevant information by stochastic fluctuation from trial-to-trial. The coding competition is driven by reinforcement feedback at the level of individual neurons.

show abstract

“…Organic light emitting diodes (OLEDs) integrated with photovoltaic device in a tandem structure provides a new application of portable display and ecofriendly devices . Although the pursuit of optoelectronic integration leads to an increase in device functionality and an improvement in performance, the manufacturing for a series of monofunctional components and then integrating them into a system will definitely increase fabrication complexity as well as product costs . Therefore, to achieve an individual component that equipped with multiple functions is highly desirable, which can simplify the fabrication process, reduce manufacturing costs, boost the integration level, and expand possible application fields.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Optoelectronic Device Based on an Asymmetric Active Layer Structure

Ren

Yuen

Deng

et al. 2019

Adv Funct Materials

View full text Add to dashboard Cite

A single device with a variety of capabilities is highly attractive for the increasing demands of complex and multifunctional optoelectronics. A hybrid heterojunction formed between CsPbBr 3 halide perovskite and chalcogenide quantum dots is demonstrated. The heterojunction served as an asymmetric active layer allows not only charge separation/exciton dissociation in a benign process, but also carrier injection/recombination with the suppression of bulk and interfacial nonradiative recombination. An individual device incorporating such a heterojunction is therefore implemented with an integration of proof-of-concept functions, including a voltage controllable multicolor light-emitting diode, an exceptionally high photovoltage energy-harvesting device, and an ultrafast photosensitive detector. The figures of merit of the light-emitting diode remarkably surpass those of the corresponding singleactive-layer device, particularly in terms of its bright electroluminescence and superior long-term stability. The asymmetric active layer concept provides a feasible route to design efficient multifunctional and monofunctional devices in the future.

show abstract

Paper No S16.1: SVGA Bidirectional OLED Microdisplay for Near‐to‐Eye Projection

Cited by 5 publications

References 3 publications

Graphene Sandwich Stable Perovskite Quantum-Dot Light-Emissive Ultrasensitive and Ultrafast Broadband Vertical Phototransistors

Graphene Sandwich Stable Perovskite Quantum-Dot Light-Emissive Ultrasensitive and Ultrafast Broadband Vertical Phototransistors

Competition of cortical clusters during on-demand visual learning in immersive virtual reality

Multifunctional Optoelectronic Device Based on an Asymmetric Active Layer Structure

Contact Info

Product

Resources

About