Chapter New Generation of High Efficient OLED Using Thermally Activated Delayed Fluorescent Materials
The search for efficient materials for organic light emitting diodes is one of the most imperative research area. The focus is to obtain a bright large area emitter, limited by the low internal quantum efficiency of conventional organic emitters. Recently, a new generation of the organic materials (...
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| Format: | Online |
| Jezik: | engleski |
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InTechOpen
2021
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| Online pristup: | ONIX_20210602_10.5772/intechopen.76048_375 |
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| _version_ | 1869518071577706496 |
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| author | Pereira, Luiz Kumar, Manish Ribeiro, Miguel |
| author_browse | Kumar, Manish Pereira, Luiz Ribeiro, Miguel |
| author_facet | Pereira, Luiz Kumar, Manish Ribeiro, Miguel |
| author_sort | Pereira, Luiz |
| collection | Directory of Open Access Books |
| description | The search for efficient materials for organic light emitting diodes is one of the most imperative research area. The focus is to obtain a bright large area emitter, limited by the low internal quantum efficiency of conventional organic emitters. Recently, a new generation of the organic materials (TADF) with a theoretical internal quantum efficiency up to 100%, opened new frameworks. However, significant challenges persist to achieve full understanding of the TADF mechanism and to improve the OLEDs stability. Starting from the photo-physical analysis, we show the relationship with the molecular electrical carrier dynamics and internal quantum efficiencies. The OLED structure, fabrication, and characterization are also discussed. Several examples for the full color emitters are given. Special emphasis on experimental results is made, showing the major milestones already achieved in this field. |
| format | Online |
| id | doab-20.500.12854ir-70216 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | InTechOpen |
| publisherStr | InTechOpen |
| record_format | ojs |
| spelling | doab-20.500.12854ir-702162025-08-13T14:11:39Z Chapter New Generation of High Efficient OLED Using Thermally Activated Delayed Fluorescent Materials Pereira, Luiz Kumar, Manish Ribeiro, Miguel organic light emitting diodes, thermally activated delayed fluorescence, photoluminescence, electroluminescence, triplet harvesting thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBC Engineering: general thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBC Engineering: general The search for efficient materials for organic light emitting diodes is one of the most imperative research area. The focus is to obtain a bright large area emitter, limited by the low internal quantum efficiency of conventional organic emitters. Recently, a new generation of the organic materials (TADF) with a theoretical internal quantum efficiency up to 100%, opened new frameworks. However, significant challenges persist to achieve full understanding of the TADF mechanism and to improve the OLEDs stability. Starting from the photo-physical analysis, we show the relationship with the molecular electrical carrier dynamics and internal quantum efficiencies. The OLED structure, fabrication, and characterization are also discussed. Several examples for the full color emitters are given. Special emphasis on experimental results is made, showing the major milestones already achieved in this field. 2021-02-10T12:58:18Z 2021-06-02T10:10:48Z 2018 chapter ONIX_20210602_10.5772/intechopen.76048_375 https://library.oapen.org/handle/20.500.12657/49261 https://directory.doabooks.org/handle/20.500.12854/70216 eng open access image/jpeg image/jpeg image/jpeg n/a n/a n/a https://library.oapen.org/bitstream/20.500.12657/49261/1/60687.pdf https://library.oapen.org/bitstream/20.500.12657/49261/1/60687.pdf https://library.oapen.org/bitstream/20.500.12657/49261/1/60687.pdf InTechOpen 10.5772/intechopen.76048 10.5772/intechopen.76048 035ecc65-6737-43cf-a13a-6bdf67ce01f4 open access |
| spellingShingle | organic light emitting diodes, thermally activated delayed fluorescence, photoluminescence, electroluminescence, triplet harvesting thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBC Engineering: general thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBC Engineering: general Pereira, Luiz Kumar, Manish Ribeiro, Miguel Chapter New Generation of High Efficient OLED Using Thermally Activated Delayed Fluorescent Materials |
| title | Chapter New Generation of High Efficient OLED Using Thermally Activated Delayed Fluorescent Materials |
| title_full | Chapter New Generation of High Efficient OLED Using Thermally Activated Delayed Fluorescent Materials |
| title_fullStr | Chapter New Generation of High Efficient OLED Using Thermally Activated Delayed Fluorescent Materials |
| title_full_unstemmed | Chapter New Generation of High Efficient OLED Using Thermally Activated Delayed Fluorescent Materials |
| title_short | Chapter New Generation of High Efficient OLED Using Thermally Activated Delayed Fluorescent Materials |
| title_sort | chapter new generation of high efficient oled using thermally activated delayed fluorescent materials |
| topic | organic light emitting diodes, thermally activated delayed fluorescence, photoluminescence, electroluminescence, triplet harvesting thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBC Engineering: general thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBC Engineering: general |
| topic_facet | organic light emitting diodes, thermally activated delayed fluorescence, photoluminescence, electroluminescence, triplet harvesting thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBC Engineering: general thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues::TBC Engineering: general |
| url | ONIX_20210602_10.5772/intechopen.76048_375 |
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