No Cover Image

Conference Paper/Proceeding/Abstract 320 views

Inorganic printed LEDs for wearable technology

James Claypole, Alexander Holder, Caitlin McCall, Amy Winters, William Ray, Tim Claypole Orcid Logo

Advances in Printing and Media Technology - Proceedings of the 46th International Research Conference of iarigai, Pages: 150 - 155

Swansea University Authors: James Claypole, Alexander Holder, Caitlin McCall, Tim Claypole Orcid Logo

Full text not available from this repository: check for access using links below.

Abstract

A new form of inorganic printed electronics has been developed that allows for high speed production of solid-state lighting on flexible substrates. Light emitting diodes (LED) become more efficient as their size is decreased. However, the difficulties in making the electrical connection to micro LE...

Full description

Published in: Advances in Printing and Media Technology - Proceedings of the 46th International Research Conference of iarigai
ISBN: 978-3-948039-01-1
ISSN: 2409-4021
Published: Darmstadt, Germany
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa53314
Tags: Add Tag
No Tags, Be the first to tag this record!
first_indexed 2020-01-20T19:29:44Z
last_indexed 2020-11-07T04:11:08Z
id cronfa53314
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2020-11-06T14:44:18.2583156</datestamp><bib-version>v2</bib-version><id>53314</id><entry>2020-01-20</entry><title>Inorganic printed LEDs for wearable technology</title><swanseaauthors><author><sid>0e33dfb4c8d099d6648af8812a472a05</sid><ORCID/><firstname>James</firstname><surname>Claypole</surname><name>James Claypole</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>cdc0d0fcecfcd72ca00342951c94f0ae</sid><firstname>Alexander</firstname><surname>Holder</surname><name>Alexander Holder</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>733922ffa8c6650c4eea85ced814a72a</sid><firstname>Caitlin</firstname><surname>McCall</surname><name>Caitlin McCall</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>7735385522f1e68a8775b4f709e91d55</sid><ORCID>0000-0003-1393-9634</ORCID><firstname>Tim</firstname><surname>Claypole</surname><name>Tim Claypole</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2020-01-20</date><deptcode>MECH</deptcode><abstract>A new form of inorganic printed electronics has been developed that allows for high speed production of solid-state lighting on flexible substrates. Light emitting diodes (LED) become more efficient as their size is decreased. However, the difficulties in making the electrical connection to micro LEDs has previously prevented these benefits being exploited outside the laboratory. Standard Indium gallium nitride (InGaN) film, grown on a defined substrate (heteroepitaxy), was fabricated into micro LEDs (approx. 30 &#xB5;m) and dispersed in a carrier fluid to form an ink, which can then be printed using established printing technologies. During printing and curing, the geometry of the individual micro LEDs causes them to orientate into a single preferential direction. Connections can then be made via further printed layers of conductive and dielectric ink to create flexible lamps consisting of areas of discrete LED. These lamps have low power consumption and high light output making them ideal for incorporating into garments and for packaging. The &#x201C;Thunderstorm&#x201D; dress (a Rainbow Winters project) was developed for the &#x201C;Wired to wear&#x201D; exhibition in the Chicago Museum of Science and Industry to demonstrate the potential of this technology. The concept was to turn the wearer into a living representation of a thunderstorm. The concept had previously been realised using electroluminescent elements (EL) to create a lightning flash in the panels of the dress. However, this required the wearer to carry high voltage devices, bulky electronics and heavy batteries. Instead, using inorganic printed LEDs afforded the potential to create a truly wearable piece of haute couture, using low voltages, miniature electronics and small batteries. The work reported here describes the fabrication technique used to create the micro LED lamps and the issues related to their integration into a piece of wearable technology. The lamps could be driven in such a way as to create a more realistic flash compared to the EL version.</abstract><type>Conference Paper/Proceeding/Abstract</type><journal>Advances in Printing and Media Technology - Proceedings of the 46th International Research Conference of iarigai</journal><volume/><journalNumber/><paginationStart>150</paginationStart><paginationEnd>155</paginationEnd><publisher/><placeOfPublication>Darmstadt, Germany</placeOfPublication><isbnPrint>978-3-948039-01-1</isbnPrint><isbnElectronic/><issnPrint>2409-4021</issnPrint><issnElectronic/><keywords>printed electronics; inorganic LEDs; wearable technology</keywords><publishedDay>0</publishedDay><publishedMonth>0</publishedMonth><publishedYear>0</publishedYear><publishedDate>0001-01-01</publishedDate><doi>10.14622/Advances_46_2019</doi><url/><notes/><college>COLLEGE NANME</college><department>Mechanical Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>MECH</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2020-11-06T14:44:18.2583156</lastEdited><Created>2020-01-20T15:52:53.5151763</Created><path><level id="1"/><level id="2"/></path><authors><author><firstname>James</firstname><surname>Claypole</surname><orcid/><order>1</order></author><author><firstname>Alexander</firstname><surname>Holder</surname><order>2</order></author><author><firstname>Caitlin</firstname><surname>McCall</surname><order>3</order></author><author><firstname>Amy</firstname><surname>Winters</surname><order>4</order></author><author><firstname>William</firstname><surname>Ray</surname><order>5</order></author><author><firstname>Tim</firstname><surname>Claypole</surname><orcid>0000-0003-1393-9634</orcid><order>6</order></author></authors><documents/><OutputDurs/></rfc1807>
spelling 2020-11-06T14:44:18.2583156 v2 53314 2020-01-20 Inorganic printed LEDs for wearable technology 0e33dfb4c8d099d6648af8812a472a05 James Claypole James Claypole true false cdc0d0fcecfcd72ca00342951c94f0ae Alexander Holder Alexander Holder true false 733922ffa8c6650c4eea85ced814a72a Caitlin McCall Caitlin McCall true false 7735385522f1e68a8775b4f709e91d55 0000-0003-1393-9634 Tim Claypole Tim Claypole true false 2020-01-20 MECH A new form of inorganic printed electronics has been developed that allows for high speed production of solid-state lighting on flexible substrates. Light emitting diodes (LED) become more efficient as their size is decreased. However, the difficulties in making the electrical connection to micro LEDs has previously prevented these benefits being exploited outside the laboratory. Standard Indium gallium nitride (InGaN) film, grown on a defined substrate (heteroepitaxy), was fabricated into micro LEDs (approx. 30 µm) and dispersed in a carrier fluid to form an ink, which can then be printed using established printing technologies. During printing and curing, the geometry of the individual micro LEDs causes them to orientate into a single preferential direction. Connections can then be made via further printed layers of conductive and dielectric ink to create flexible lamps consisting of areas of discrete LED. These lamps have low power consumption and high light output making them ideal for incorporating into garments and for packaging. The “Thunderstorm” dress (a Rainbow Winters project) was developed for the “Wired to wear” exhibition in the Chicago Museum of Science and Industry to demonstrate the potential of this technology. The concept was to turn the wearer into a living representation of a thunderstorm. The concept had previously been realised using electroluminescent elements (EL) to create a lightning flash in the panels of the dress. However, this required the wearer to carry high voltage devices, bulky electronics and heavy batteries. Instead, using inorganic printed LEDs afforded the potential to create a truly wearable piece of haute couture, using low voltages, miniature electronics and small batteries. The work reported here describes the fabrication technique used to create the micro LED lamps and the issues related to their integration into a piece of wearable technology. The lamps could be driven in such a way as to create a more realistic flash compared to the EL version. Conference Paper/Proceeding/Abstract Advances in Printing and Media Technology - Proceedings of the 46th International Research Conference of iarigai 150 155 Darmstadt, Germany 978-3-948039-01-1 2409-4021 printed electronics; inorganic LEDs; wearable technology 0 0 0 0001-01-01 10.14622/Advances_46_2019 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2020-11-06T14:44:18.2583156 2020-01-20T15:52:53.5151763 James Claypole 1 Alexander Holder 2 Caitlin McCall 3 Amy Winters 4 William Ray 5 Tim Claypole 0000-0003-1393-9634 6
title Inorganic printed LEDs for wearable technology
spellingShingle Inorganic printed LEDs for wearable technology
James Claypole
Alexander Holder
Caitlin McCall
Tim Claypole
title_short Inorganic printed LEDs for wearable technology
title_full Inorganic printed LEDs for wearable technology
title_fullStr Inorganic printed LEDs for wearable technology
title_full_unstemmed Inorganic printed LEDs for wearable technology
title_sort Inorganic printed LEDs for wearable technology
author_id_str_mv 0e33dfb4c8d099d6648af8812a472a05
cdc0d0fcecfcd72ca00342951c94f0ae
733922ffa8c6650c4eea85ced814a72a
7735385522f1e68a8775b4f709e91d55
author_id_fullname_str_mv 0e33dfb4c8d099d6648af8812a472a05_***_James Claypole
cdc0d0fcecfcd72ca00342951c94f0ae_***_Alexander Holder
733922ffa8c6650c4eea85ced814a72a_***_Caitlin McCall
7735385522f1e68a8775b4f709e91d55_***_Tim Claypole
author James Claypole
Alexander Holder
Caitlin McCall
Tim Claypole
author2 James Claypole
Alexander Holder
Caitlin McCall
Amy Winters
William Ray
Tim Claypole
format Conference Paper/Proceeding/Abstract
container_title Advances in Printing and Media Technology - Proceedings of the 46th International Research Conference of iarigai
container_start_page 150
institution Swansea University
isbn 978-3-948039-01-1
issn 2409-4021
doi_str_mv 10.14622/Advances_46_2019
document_store_str 0
active_str 0
description A new form of inorganic printed electronics has been developed that allows for high speed production of solid-state lighting on flexible substrates. Light emitting diodes (LED) become more efficient as their size is decreased. However, the difficulties in making the electrical connection to micro LEDs has previously prevented these benefits being exploited outside the laboratory. Standard Indium gallium nitride (InGaN) film, grown on a defined substrate (heteroepitaxy), was fabricated into micro LEDs (approx. 30 µm) and dispersed in a carrier fluid to form an ink, which can then be printed using established printing technologies. During printing and curing, the geometry of the individual micro LEDs causes them to orientate into a single preferential direction. Connections can then be made via further printed layers of conductive and dielectric ink to create flexible lamps consisting of areas of discrete LED. These lamps have low power consumption and high light output making them ideal for incorporating into garments and for packaging. The “Thunderstorm” dress (a Rainbow Winters project) was developed for the “Wired to wear” exhibition in the Chicago Museum of Science and Industry to demonstrate the potential of this technology. The concept was to turn the wearer into a living representation of a thunderstorm. The concept had previously been realised using electroluminescent elements (EL) to create a lightning flash in the panels of the dress. However, this required the wearer to carry high voltage devices, bulky electronics and heavy batteries. Instead, using inorganic printed LEDs afforded the potential to create a truly wearable piece of haute couture, using low voltages, miniature electronics and small batteries. The work reported here describes the fabrication technique used to create the micro LED lamps and the issues related to their integration into a piece of wearable technology. The lamps could be driven in such a way as to create a more realistic flash compared to the EL version.
published_date 0001-01-01T04:07:31Z
_version_ 1737027435347574784
score 10.896665