Outcoupling efficiency of organic light-emitting diodes depending on the fill factor and size of the microlens array
The outcoupling efficiency (OCE) of organic light‐emitting diodes (OLEDs) incorporating a microlens array was investigated depending on the fill factor, radius, and shape of the microlens through simulation and experiment. We simulated the OCE of the device that consisted of a reflective layer, an e...
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| Veröffentlicht in: | Physica status solidi. A, Applications and materials science Applications and materials science, 2014-08, Vol.211 (8), p.1773-1777 |
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| container_title | Physica status solidi. A, Applications and materials science |
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| creator | Hwang, Deok Hyeon Kwon, Ow Tae Lee, Won Jae Hong, Jin Woong Kim, Tae Wan |
| description | The outcoupling efficiency (OCE) of organic light‐emitting diodes (OLEDs) incorporating a microlens array was investigated depending on the fill factor, radius, and shape of the microlens through simulation and experiment. We simulated the OCE of the device that consisted of a reflective layer, an emissive layer, and a flat transparent substrate. In this device, the OCE of 22% was obtained. In order to investigate the outcoupling effect, eleven microlens arrays were made and applied to the OLEDs. An optimum fill factor of 0.30 was found from the simulation and confirmed by experiment. The experimental results of the OCE depending on the fill factor and the radius of the microlens are close to those of the simulation of the trapezoidal shape of microlens. It was found that the OCE is a little more affected by the fill factor rather than the size of the microlens. |
| doi_str_mv | 10.1002/pssa.201330613 |
| format | Article |
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We simulated the OCE of the device that consisted of a reflective layer, an emissive layer, and a flat transparent substrate. In this device, the OCE of 22% was obtained. In order to investigate the outcoupling effect, eleven microlens arrays were made and applied to the OLEDs. An optimum fill factor of 0.30 was found from the simulation and confirmed by experiment. The experimental results of the OCE depending on the fill factor and the radius of the microlens are close to those of the simulation of the trapezoidal shape of microlens. 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A, Applications and materials science</title><addtitle>Phys. Status Solidi A</addtitle><description>The outcoupling efficiency (OCE) of organic light‐emitting diodes (OLEDs) incorporating a microlens array was investigated depending on the fill factor, radius, and shape of the microlens through simulation and experiment. We simulated the OCE of the device that consisted of a reflective layer, an emissive layer, and a flat transparent substrate. In this device, the OCE of 22% was obtained. In order to investigate the outcoupling effect, eleven microlens arrays were made and applied to the OLEDs. An optimum fill factor of 0.30 was found from the simulation and confirmed by experiment. The experimental results of the OCE depending on the fill factor and the radius of the microlens are close to those of the simulation of the trapezoidal shape of microlens. It was found that the OCE is a little more affected by the fill factor rather than the size of the microlens.</description><subject>Arrays</subject><subject>Devices</subject><subject>Diodes</subject><subject>Efficiency</subject><subject>Emissivity</subject><subject>Flats</subject><subject>light outcoupling</subject><subject>microlens arrays</subject><subject>Optimization</subject><subject>Organic light emitting diodes</subject><subject>Photovoltaic cells</subject><subject>Simulation</subject><issn>1862-6300</issn><issn>1862-6319</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNpdkbtPHDEQxlcokUKANrUlmjRL7PX5sSUiCURCgfAsLZ89Pkx89sb2Khx_fXZ10RUUo3n9vtFIX9N8IviEYNx9GUrRJx0mlGJO6F6zTyTvWk5J_25XY_yh-VjKM8YLthBkv6lXYzVpHIKPKwTOeeMhmg1KDqW80tEbFPzqqbaw9rXOkPXJQkEWBoh2HqSI6hMg50NATpuaMtLRouJfYT4z79be5BQgFqRz1pvD5r3TocDR_3zQ3H__dnd20V5enf84O71szYL1tO2YhR5EL5mh3FrAmOsOGxDOYKcXVmDKe-m41Z0WS9ZjB3K5lMQuKdW0s_Sg-by9O-T0Z4RS1doXAyHoCGksigjJiSSMdBN6_AZ9TmOO03eKMEanEFJOVL-l_voAGzVkv9Z5owhWswNqdkDtHFDXt7enu27StlutLxVedlqdfysuqGDq8ee5-sWu-c1X8qDu6D_a4Y1u</recordid><startdate>201408</startdate><enddate>201408</enddate><creator>Hwang, Deok Hyeon</creator><creator>Kwon, Ow Tae</creator><creator>Lee, Won Jae</creator><creator>Hong, Jin Woong</creator><creator>Kim, Tae Wan</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>201408</creationdate><title>Outcoupling efficiency of organic light-emitting diodes depending on the fill factor and size of the microlens array</title><author>Hwang, Deok Hyeon ; Kwon, Ow Tae ; Lee, Won Jae ; Hong, Jin Woong ; Kim, Tae Wan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4593-25de9e7985c36dde006a20ce7fc0fa4d703698f6da2a7b590fe8bb81db33a32d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Arrays</topic><topic>Devices</topic><topic>Diodes</topic><topic>Efficiency</topic><topic>Emissivity</topic><topic>Flats</topic><topic>light outcoupling</topic><topic>microlens arrays</topic><topic>Optimization</topic><topic>Organic light emitting diodes</topic><topic>Photovoltaic cells</topic><topic>Simulation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hwang, Deok Hyeon</creatorcontrib><creatorcontrib>Kwon, Ow Tae</creatorcontrib><creatorcontrib>Lee, Won Jae</creatorcontrib><creatorcontrib>Hong, Jin Woong</creatorcontrib><creatorcontrib>Kim, Tae Wan</creatorcontrib><collection>Istex</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physica status solidi. A, Applications and materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hwang, Deok Hyeon</au><au>Kwon, Ow Tae</au><au>Lee, Won Jae</au><au>Hong, Jin Woong</au><au>Kim, Tae Wan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Outcoupling efficiency of organic light-emitting diodes depending on the fill factor and size of the microlens array</atitle><jtitle>Physica status solidi. A, Applications and materials science</jtitle><addtitle>Phys. Status Solidi A</addtitle><date>2014-08</date><risdate>2014</risdate><volume>211</volume><issue>8</issue><spage>1773</spage><epage>1777</epage><pages>1773-1777</pages><issn>1862-6300</issn><eissn>1862-6319</eissn><abstract>The outcoupling efficiency (OCE) of organic light‐emitting diodes (OLEDs) incorporating a microlens array was investigated depending on the fill factor, radius, and shape of the microlens through simulation and experiment. We simulated the OCE of the device that consisted of a reflective layer, an emissive layer, and a flat transparent substrate. In this device, the OCE of 22% was obtained. In order to investigate the outcoupling effect, eleven microlens arrays were made and applied to the OLEDs. An optimum fill factor of 0.30 was found from the simulation and confirmed by experiment. The experimental results of the OCE depending on the fill factor and the radius of the microlens are close to those of the simulation of the trapezoidal shape of microlens. 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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Arrays Devices Diodes Efficiency Emissivity Flats light outcoupling microlens arrays Optimization Organic light emitting diodes Photovoltaic cells Simulation |
| title | Outcoupling efficiency of organic light-emitting diodes depending on the fill factor and size of the microlens array |
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