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Dadansoddiad o berfformiad lampau electroymoleuol printiedig ar is-haen ddi-draidd

Eifion Jewell Orcid Logo, Tim Claypole, David Gethin

Gwerddon, Volume: 25, Pages: 30 - 44

Swansea University Author: Eifion Jewell Orcid Logo

Abstract

Er mwyn archwilio marchnadoedd newydd ar gyfer deunyddiau electronig printiedig, cynhaliwyd astudiaeth ymchwil i geisio deall perfformiad lampau electroymoleuol (EL) a gynhyrchwyd ar is-haen ddi-draidd. Daw’r posibilrwydd o greu’r lampau o ddeunydd inc PEDOT:PSS sy’n ffurfio uwchben electrod yn y la...

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Published in: Gwerddon
ISSN: 1741-4261
Published: Coleg Cymraeg Cenedlaethol. 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa36087
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Gan ddefnyddio proses printio sgrin syml, cynhyrchwyd lampau ar bedair is-haen ddi-draidd (un blastig a thair bapur) a chymharwyd eu perfformiad drwy fesur lefel eu disgleirdeb. Yn gyffredinol, gwelwyd lleihad o tua 50% yn nisgleirdeb y lampau o&#x2019;i gymharu &#xE2; disgleirdeb lampau a gynhyrchwyd gan ddefnyddio ITO. Roedd papur ysgafnach a mwy garw yn lleihau&#x2019;r disgleirdeb ymhellach. Nid oedd modd cynyddu disgleirdeb y lampau drwy ychwanegu haen ychwanegol o PEDOT:PSS gan fod hynny&#x2019;n lleihau'r nodweddion tryloyw. Wrth gynyddu maint y lamp, mae effaith gwrthiant y PEDOT:PSS o&#x2019;i gymharu &#xE2;&#x2019;r ITO yn achosi dirywiad sylweddol ym mherfformiad y lamp ac yn cyrraedd lefel o 25% yn unig o ddisgleirdeb lamp ITO o 5000 mm2. Nid y lleihad yn nargludedd a thryloywder y PEDOT:PSS o&#x2019;i gymharu ag ITO yn unig sy&#x2019;n gyfrifol am berfformiad cymharol wael y lampau di-draidd, ond hefyd natur dopolegol y gronynnau ffosffor, sy&#x2019;n golygu bod rhai o&#x2019;r gronynnau y tu hwnt i effaith y maes trydanol a gr&#xEB;wyd rhwng y ddau electrod.Understanding performance deficiencies in printed thick film EL lamps on paperIn order to examine new potential markets for printed electronics, a research study was undertaken to understand the performance of opaque substrate electroluminescent (EL) lamps. Opaque EL lamps are made possible by a PEDOT:PSS top electrode which replaces the ITO used in the conventional lamps. Screen-printed lamps were manufactured on four substrates (one plastic and three paper) and their performance was measured through brightness measurement. Generally, opaque substrate lamps were 50% less bright than a comparable ITO lamp. Further reductions in brightness were observed with the lighter and rougher papers. Additional layers of PEDOT:PSS increased sheet conductivity but reduced lamp brightness due to a reduction in layer transparency. As lamp size increased, the resistive nature of the PEDOT:PSS caused a significant reduction in lamp output, with a brightness of 25% of a comparable ITO lamp with an illuminated area of 5000 mm2. 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spelling 2017-12-05T17:23:11.3541376 v2 36087 2017-10-15 Dadansoddiad o berfformiad lampau electroymoleuol printiedig ar is-haen ddi-draidd 13dc152c178d51abfe0634445b0acf07 0000-0002-6894-2251 Eifion Jewell Eifion Jewell true false 2017-10-15 MECH Er mwyn archwilio marchnadoedd newydd ar gyfer deunyddiau electronig printiedig, cynhaliwyd astudiaeth ymchwil i geisio deall perfformiad lampau electroymoleuol (EL) a gynhyrchwyd ar is-haen ddi-draidd. Daw’r posibilrwydd o greu’r lampau o ddeunydd inc PEDOT:PSS sy’n ffurfio uwchben electrod yn y lamp ac sy’n cael ei amnewid am yr ITO a ddefnyddir mewn lampau confensiynol. Gan ddefnyddio proses printio sgrin syml, cynhyrchwyd lampau ar bedair is-haen ddi-draidd (un blastig a thair bapur) a chymharwyd eu perfformiad drwy fesur lefel eu disgleirdeb. Yn gyffredinol, gwelwyd lleihad o tua 50% yn nisgleirdeb y lampau o’i gymharu â disgleirdeb lampau a gynhyrchwyd gan ddefnyddio ITO. Roedd papur ysgafnach a mwy garw yn lleihau’r disgleirdeb ymhellach. Nid oedd modd cynyddu disgleirdeb y lampau drwy ychwanegu haen ychwanegol o PEDOT:PSS gan fod hynny’n lleihau'r nodweddion tryloyw. Wrth gynyddu maint y lamp, mae effaith gwrthiant y PEDOT:PSS o’i gymharu â’r ITO yn achosi dirywiad sylweddol ym mherfformiad y lamp ac yn cyrraedd lefel o 25% yn unig o ddisgleirdeb lamp ITO o 5000 mm2. Nid y lleihad yn nargludedd a thryloywder y PEDOT:PSS o’i gymharu ag ITO yn unig sy’n gyfrifol am berfformiad cymharol wael y lampau di-draidd, ond hefyd natur dopolegol y gronynnau ffosffor, sy’n golygu bod rhai o’r gronynnau y tu hwnt i effaith y maes trydanol a grëwyd rhwng y ddau electrod.Understanding performance deficiencies in printed thick film EL lamps on paperIn order to examine new potential markets for printed electronics, a research study was undertaken to understand the performance of opaque substrate electroluminescent (EL) lamps. Opaque EL lamps are made possible by a PEDOT:PSS top electrode which replaces the ITO used in the conventional lamps. Screen-printed lamps were manufactured on four substrates (one plastic and three paper) and their performance was measured through brightness measurement. Generally, opaque substrate lamps were 50% less bright than a comparable ITO lamp. Further reductions in brightness were observed with the lighter and rougher papers. Additional layers of PEDOT:PSS increased sheet conductivity but reduced lamp brightness due to a reduction in layer transparency. As lamp size increased, the resistive nature of the PEDOT:PSS caused a significant reduction in lamp output, with a brightness of 25% of a comparable ITO lamp with an illuminated area of 5000 mm2. The relatively poor performance of the opaque lamps is derived not only from the reduced conductivity and transparency of the PEDOT:PSS compared to ITO, but is also caused by the topological nature of the phosphor particles which result in some phosphor material lying outside the electric field created between the two electrodes. Journal Article Gwerddon 25 30 44 Coleg Cymraeg Cenedlaethol. 1741-4261 Electroneg brintiedig, dargludydd tryloyw, is-haen bapur, lampau electroymoleuol 15 10 2017 2017-10-15 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2017-12-05T17:23:11.3541376 2017-10-15T15:26:54.2175646 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Eifion Jewell 0000-0002-6894-2251 1 Tim Claypole 2 David Gethin 3 0036087-15102017153552.pdf ELpapur.pdf 2017-10-15T15:35:52.5470000 Output 1556004 application/pdf Proof true 2017-10-15T00:00:00.0000000 true eng
title Dadansoddiad o berfformiad lampau electroymoleuol printiedig ar is-haen ddi-draidd
spellingShingle Dadansoddiad o berfformiad lampau electroymoleuol printiedig ar is-haen ddi-draidd
Eifion Jewell
title_short Dadansoddiad o berfformiad lampau electroymoleuol printiedig ar is-haen ddi-draidd
title_full Dadansoddiad o berfformiad lampau electroymoleuol printiedig ar is-haen ddi-draidd
title_fullStr Dadansoddiad o berfformiad lampau electroymoleuol printiedig ar is-haen ddi-draidd
title_full_unstemmed Dadansoddiad o berfformiad lampau electroymoleuol printiedig ar is-haen ddi-draidd
title_sort Dadansoddiad o berfformiad lampau electroymoleuol printiedig ar is-haen ddi-draidd
author_id_str_mv 13dc152c178d51abfe0634445b0acf07
author_id_fullname_str_mv 13dc152c178d51abfe0634445b0acf07_***_Eifion Jewell
author Eifion Jewell
author2 Eifion Jewell
Tim Claypole
David Gethin
format Journal article
container_title Gwerddon
container_volume 25
container_start_page 30
publishDate 2017
institution Swansea University
issn 1741-4261
publisher Coleg Cymraeg Cenedlaethol.
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
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description Er mwyn archwilio marchnadoedd newydd ar gyfer deunyddiau electronig printiedig, cynhaliwyd astudiaeth ymchwil i geisio deall perfformiad lampau electroymoleuol (EL) a gynhyrchwyd ar is-haen ddi-draidd. Daw’r posibilrwydd o greu’r lampau o ddeunydd inc PEDOT:PSS sy’n ffurfio uwchben electrod yn y lamp ac sy’n cael ei amnewid am yr ITO a ddefnyddir mewn lampau confensiynol. Gan ddefnyddio proses printio sgrin syml, cynhyrchwyd lampau ar bedair is-haen ddi-draidd (un blastig a thair bapur) a chymharwyd eu perfformiad drwy fesur lefel eu disgleirdeb. Yn gyffredinol, gwelwyd lleihad o tua 50% yn nisgleirdeb y lampau o’i gymharu â disgleirdeb lampau a gynhyrchwyd gan ddefnyddio ITO. Roedd papur ysgafnach a mwy garw yn lleihau’r disgleirdeb ymhellach. Nid oedd modd cynyddu disgleirdeb y lampau drwy ychwanegu haen ychwanegol o PEDOT:PSS gan fod hynny’n lleihau'r nodweddion tryloyw. Wrth gynyddu maint y lamp, mae effaith gwrthiant y PEDOT:PSS o’i gymharu â’r ITO yn achosi dirywiad sylweddol ym mherfformiad y lamp ac yn cyrraedd lefel o 25% yn unig o ddisgleirdeb lamp ITO o 5000 mm2. Nid y lleihad yn nargludedd a thryloywder y PEDOT:PSS o’i gymharu ag ITO yn unig sy’n gyfrifol am berfformiad cymharol wael y lampau di-draidd, ond hefyd natur dopolegol y gronynnau ffosffor, sy’n golygu bod rhai o’r gronynnau y tu hwnt i effaith y maes trydanol a grëwyd rhwng y ddau electrod.Understanding performance deficiencies in printed thick film EL lamps on paperIn order to examine new potential markets for printed electronics, a research study was undertaken to understand the performance of opaque substrate electroluminescent (EL) lamps. Opaque EL lamps are made possible by a PEDOT:PSS top electrode which replaces the ITO used in the conventional lamps. Screen-printed lamps were manufactured on four substrates (one plastic and three paper) and their performance was measured through brightness measurement. Generally, opaque substrate lamps were 50% less bright than a comparable ITO lamp. Further reductions in brightness were observed with the lighter and rougher papers. Additional layers of PEDOT:PSS increased sheet conductivity but reduced lamp brightness due to a reduction in layer transparency. As lamp size increased, the resistive nature of the PEDOT:PSS caused a significant reduction in lamp output, with a brightness of 25% of a comparable ITO lamp with an illuminated area of 5000 mm2. The relatively poor performance of the opaque lamps is derived not only from the reduced conductivity and transparency of the PEDOT:PSS compared to ITO, but is also caused by the topological nature of the phosphor particles which result in some phosphor material lying outside the electric field created between the two electrodes.
published_date 2017-10-15T03:45:04Z
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