Thickness dependent device characteristics of sandwich polymer light-emitting electrochemical cell
Identifieur interne : 000311 ( Main/Repository ); précédent : 000310; suivant : 000312Thickness dependent device characteristics of sandwich polymer light-emitting electrochemical cell
Auteurs : RBID : Pascal:13-0187835Descripteurs français
- Pascal (Inist)
- Effet dimensionnel, Epaisseur couche, Structure sandwich, Dispositif électroluminescent, Pile électrochimique, Diode électroluminescente, Travail sortie, Couche active, Evaluation performance, Luminance, Durée vie, Durabilité, Restauration (propriété), Addition indium, Optimisation, Propriété électrochimique, Dopage, Polymère, Fiabilité, Matériau dopé, 8105L, 8560J, 7330.
- Wicri :
English descriptors
- KwdEn :
- Active layer, Doped materials, Doping, Durability, Electrochemical cell, Electrochemical properties, Electroluminescent device, Indium addition, Layer thickness, Lifetime, Light emitting diode, Luminance, Optimization, Performance evaluation, Polymer, Recovery (properties), Reliability, Sandwich structure, Size effect, Work function.
Abstract
The polymer light-emitting electrochemical cell (LEC) is an attractive alternative to the widely studied polymer light-emitting diodes (PLEDs) for possible lighting and display applications. The main advantage of an LEC is its relative insensitivity to electrode work function and active layer thickness. While this is true when compared to a PLED, we show that active layer thickness can strongly influence several key LEC performance parameters. Sandwich LECs exhibit vastly different device characteristics when the active layer thickness is varied from approximately 75 nm to 1206 nm. Maximum luminance, current efficiency (in cd/A) and operating lifetime are all strongly thickness dependent. The 75 nm LEC shows artificially slow turn on due to the presence of micro-shorts. The 1206 nm LEC exhibits a peculiar partial recovery of luminance after prolonged operation. We attribute the thickness dependent LEC characteristics to variations in doping levels. Our results suggest that the active layer thickness of sandwich LECs is a non-trivial parameter that should be carefully optimized and studied.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Thickness dependent device characteristics of sandwich polymer light-emitting electrochemical cell</title><author><name>XIAOYU LI</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry, Queen's University</s1><s2>Kingston, Ontario</s2><s3>CAN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Kingston, Ontario</wicri:noRegion></affiliation></author><author><name>JUN GAO</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Physics, Engineering Physics and Astronomy, Queen's University</s1><s2>Kingston, Ontario</s2><s3>CAN</s3><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Kingston, Ontario</wicri:noRegion></affiliation></author><author><name>GUOJUN LIU</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Chemistry, Queen's University</s1><s2>Kingston, Ontario</s2><s3>CAN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>Kingston, Ontario</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="inist">13-0187835</idno><date when="2013">2013</date><idno type="stanalyst">PASCAL 13-0187835 INIST</idno><idno type="RBID">Pascal:13-0187835</idno><idno type="wicri:Area/Main/Corpus">000D64</idno><idno type="wicri:Area/Main/Repository">000311</idno></publicationStmt><seriesStmt><idno type="ISSN">1566-1199</idno><title level="j" type="abbreviated">Org. electron. : (Print)</title><title level="j" type="main">Organic electronics : (Print)</title></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Active layer</term><term>Doped materials</term><term>Doping</term><term>Durability</term><term>Electrochemical cell</term><term>Electrochemical properties</term><term>Electroluminescent device</term><term>Indium addition</term><term>Layer thickness</term><term>Lifetime</term><term>Light emitting diode</term><term>Luminance</term><term>Optimization</term><term>Performance evaluation</term><term>Polymer</term><term>Recovery (properties)</term><term>Reliability</term><term>Sandwich structure</term><term>Size effect</term><term>Work function</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Effet dimensionnel</term><term>Epaisseur couche</term><term>Structure sandwich</term><term>Dispositif électroluminescent</term><term>Pile électrochimique</term><term>Diode électroluminescente</term><term>Travail sortie</term><term>Couche active</term><term>Evaluation performance</term><term>Luminance</term><term>Durée vie</term><term>Durabilité</term><term>Restauration (propriété)</term><term>Addition indium</term><term>Optimisation</term><term>Propriété électrochimique</term><term>Dopage</term><term>Polymère</term><term>Fiabilité</term><term>Matériau dopé</term><term>8105L</term><term>8560J</term><term>7330</term></keywords><keywords scheme="Wicri" type="concept" xml:lang="fr"><term>Dopage</term><term>Polymère</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The polymer light-emitting electrochemical cell (LEC) is an attractive alternative to the widely studied polymer light-emitting diodes (PLEDs) for possible lighting and display applications. The main advantage of an LEC is its relative insensitivity to electrode work function and active layer thickness. While this is true when compared to a PLED, we show that active layer thickness can strongly influence several key LEC performance parameters. Sandwich LECs exhibit vastly different device characteristics when the active layer thickness is varied from approximately 75 nm to 1206 nm. Maximum luminance, current efficiency (in cd/A) and operating lifetime are all strongly thickness dependent. The 75 nm LEC shows artificially slow turn on due to the presence of micro-shorts. The 1206 nm LEC exhibits a peculiar partial recovery of luminance after prolonged operation. We attribute the thickness dependent LEC characteristics to variations in doping levels. Our results suggest that the active layer thickness of sandwich LECs is a non-trivial parameter that should be carefully optimized and studied.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>1566-1199</s0></fA01><fA03 i2="1"><s0>Org. electron. : (Print)</s0></fA03><fA05><s2>14</s2></fA05><fA06><s2>6</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Thickness dependent device characteristics of sandwich polymer light-emitting electrochemical cell</s1></fA08><fA11 i1="01" i2="1"><s1>XIAOYU LI</s1></fA11><fA11 i1="02" i2="1"><s1>JUN GAO</s1></fA11><fA11 i1="03" i2="1"><s1>GUOJUN LIU</s1></fA11><fA14 i1="01"><s1>Department of Chemistry, Queen's University</s1><s2>Kingston, Ontario</s2><s3>CAN</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></fA14><fA14 i1="02"><s1>Department of Physics, Engineering Physics and Astronomy, Queen's University</s1><s2>Kingston, Ontario</s2><s3>CAN</s3><sZ>2 aut.</sZ></fA14><fA20><s1>1441-1446</s1></fA20><fA21><s1>2013</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>27255</s2><s5>354000504152080020</s5></fA43><fA44><s0>0000</s0><s1>© 2013 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>34 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>13-0187835</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Organic electronics : (Print)</s0></fA64><fA66 i1="01"><s0>NLD</s0></fA66><fC01 i1="01" l="ENG"><s0>The polymer light-emitting electrochemical cell (LEC) is an attractive alternative to the widely studied polymer light-emitting diodes (PLEDs) for possible lighting and display applications. The main advantage of an LEC is its relative insensitivity to electrode work function and active layer thickness. While this is true when compared to a PLED, we show that active layer thickness can strongly influence several key LEC performance parameters. Sandwich LECs exhibit vastly different device characteristics when the active layer thickness is varied from approximately 75 nm to 1206 nm. Maximum luminance, current efficiency (in cd/A) and operating lifetime are all strongly thickness dependent. The 75 nm LEC shows artificially slow turn on due to the presence of micro-shorts. The 1206 nm LEC exhibits a peculiar partial recovery of luminance after prolonged operation. We attribute the thickness dependent LEC characteristics to variations in doping levels. Our results suggest that the active layer thickness of sandwich LECs is a non-trivial parameter that should be carefully optimized and studied.</s0></fC01><fC02 i1="01" i2="X"><s0>001D03F02</s0></fC02><fC02 i1="02" i2="X"><s0>001D03F15</s0></fC02><fC02 i1="03" i2="X"><s0>001D05I03E</s0></fC02><fC02 i1="04" i2="3"><s0>001B70C30</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Effet dimensionnel</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Size effect</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Efecto dimensional</s0><s5>01</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Epaisseur couche</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Layer thickness</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Espesor capa</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Structure sandwich</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Sandwich structure</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Estructura sandwich</s0><s5>03</s5></fC03><fC03 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