Size-dependent bandwidth of semipolar (1122) light-emitting-diodes

Show simple item record Haemmer, M. Roycroft, Brendan Akhter, Mahbub Dinh, Duc V. Quan, Zhiheng Zhao, Jian Parbrook, Peter J. Corbett, Brian M. 2018-03-09T12:55:07Z 2018-03-09T12:55:07Z 2018
dc.identifier.citation Haemmer, M., Roycroft, B., Akhter, M., Dinh, D. V., Quan, Z., Zhao, J., Parbrook, P. J. and Corbett, B. (2018) 'Size-dependent bandwidth of semipolar (1122) light-emitting-diodes', IEEE Photonics Technology Letters, 30(5), pp. 439-442. doi: 10.1109/LPT.2018.2794444 en
dc.identifier.volume 30
dc.identifier.issued 5
dc.identifier.startpage 439
dc.identifier.endpage 442
dc.identifier.issn 1041-1135
dc.identifier.doi 10.1109/LPT.2018.2794444
dc.description.abstract The limited modulation bandwidth of commercial light-emitting diodes (LEDs) is one of the critical bottlenecks for visible light communications. Possible approaches to increase the bandwidth include the use of micron sized LEDs, which can withstand higher current densities, as well as the use of LED structures that are grown on different crystal planes to the conventional polar c-plane. We compare c-plane InGaN/GaN LEDs with semipolar ( 112¯¯¯2 ) LEDs containing a 4- and 8-nm single quantum well. The modulation bandwidth of semipolar LEDs with active areas varying from 200×200 to 30×30μm2 is shown to be governed by both current density and size. A small signal bandwidth of over 800 MHz for a relatively low applied current density of 385 A/cm2 is reported for 30×30μm2 LEDs with 8-nm thick quantum well. An optical link using an easy non-return-to-zero ON–OFF keying modulation scheme with a data rate of 1.5 Gb/s is demonstrated. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Institute of Electrical and Electronics Engineers Inc. en
dc.rights © 2018, IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See for more information. en
dc.subject Light emitting diodes en
dc.subject Bandwidth en
dc.subject Current density en
dc.subject Modulation en
dc.subject Frequency response en
dc.subject Radiative recombination en
dc.subject Resistance en
dc.title Size-dependent bandwidth of semipolar (1122) light-emitting-diodes en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Brian Corbett, Tyndall National Institute, University College Cork, Cork, Ireland. +353 214904380. Email: en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.description.status Peer reviewed en
dc.identifier.journaltitle IEEE Photonics Technology Letters en

Files in this item

This item appears in the following Collection(s)

Show simple item record

This website uses cookies. By using this website, you consent to the use of cookies in accordance with the UCC Privacy and Cookies Statement. For more information about cookies and how you can disable them, visit our Privacy and Cookies statement