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Light-emitting nanolattices with enhanced brightness

Ng, Ryan C. and Mandal, Rajib and Anthony, Rebecca J. and Greer, Julia R. (2017) Light-emitting nanolattices with enhanced brightness. In: Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XXI. Proceedings of SPIE. Vol.10124. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 101241E. ISBN 978-1-5106-0689-0. https://resolver.caltech.edu/CaltechAUTHORS:20170720-091304564

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Abstract

Three-dimensional (3D) photonic crystals have potential in solid state lighting applications due to their advantages over conventional planar thin film devices. Periodicity in a photonic crystal structure enables engineering of the density of states to improve spontaneous light emission according to Fermi’s golden rule. Unlike planar thin films, which suffer significantly from total internal reflection, a 3D architectured structure is distributed in space with many non-flat interfaces, which facilitates a substantial enhancement in light extraction. We demonstrate the fabrication of 3D nano-architectures with octahedron geometry that utilize luminescing silicon nanocrystals as active media with an aluminum cathode and indium tin oxide anode towards the realization of a 3D light emitting device. The developed fabrication procedure allows charge to pass through the nanolattice between two contacts for electroluminescence. These initial fabrication efforts suggest that 3D nano-architected devices are realizable and can reach greater efficiencies than planar devices.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.2250081DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2605184PublisherArticle
ORCID:
AuthorORCID
Greer, Julia R.0000-0002-9675-1508
Additional Information:© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE).
Subject Keywords:nanolattice, photonic crystal, octahedron, 3D LED, nanofabrication
Series Name:Proceedings of SPIE
Record Number:CaltechAUTHORS:20170720-091304564
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170720-091304564
Official Citation: Ryan C. Ng ; Rajib Mandal ; Rebecca J. Anthony ; Julia R. Greer; Light-emitting nanolattices with enhanced brightness . Proc. SPIE 10124, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XXI, 101241E (February 16, 2017); doi:10.1117/12.2250081.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:79244
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:20 Jul 2017 18:18
Last Modified:03 Oct 2019 18:17

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