Thin film Encapsulations of Flexible Organic Light Emitting Diodes
Various encapsulated films for flexible organic light emitting diodes (OLEDs) were studied in this work, where gas barrier layers including inorganic Al2O3 thin films prepared by atomic layer deposition, organic Parylene C thin films prepared by chemical vapor deposition, and their combination were...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2016-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/matecconf/20167104001 |
| _version_ | 1818413139205554176 |
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| author | Tsai Fa-Ta Chao Ching-Kong Jhu Pei-Sin Chang Rwei-Ching |
| author_facet | Tsai Fa-Ta Chao Ching-Kong Jhu Pei-Sin Chang Rwei-Ching |
| author_sort | Tsai Fa-Ta |
| collection | DOAJ |
| description | Various encapsulated films for flexible organic light emitting diodes (OLEDs) were studied in this work, where gas barrier layers including inorganic Al2O3 thin films prepared by atomic layer deposition, organic Parylene C thin films prepared by chemical vapor deposition, and their combination were considered. The transmittance and water vapor transmission rate of the various organic and inorgabic encapsulated films were tested. The effects of the encapsulated films on the luminance and current density of the OLEDs were discussed, and the life time experiments of the OLEDs with these encapsulated films were also conducted. The results showed that the transmittance are acceptable even the PET substrate were coated two Al2O3 and Parylene C layers. The results also indicated the WVTR of the PET substrate improved by coating the barrier layers. In the encapsulation performance, it indicates the OLED with Al2O3 /PET, 1 pair/PET, and 2 pairs/PET presents similarly higher luminance than the other two cases. Although the 1 pair/PET encapsulation behaves a litter better luminance than the 2 pairs/PET encapsulation, the 2 pairs/PET encapsulation has much better life time. The OLED with 2 pairs/PET encapsulation behaves near double life time to the 1 pair encapsulation, and four times to none encapsulation. |
| first_indexed | 2024-12-14T10:58:27Z |
| format | Article |
| id | doaj.art-08c27124a845464493f3f9a38e2b3baa |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-14T10:58:27Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-08c27124a845464493f3f9a38e2b3baa2022-12-21T23:04:49ZengEDP SciencesMATEC Web of Conferences2261-236X2016-01-01710400110.1051/matecconf/20167104001matecconf_ccpe2016_04001Thin film Encapsulations of Flexible Organic Light Emitting DiodesTsai Fa-Ta0Chao Ching-Kong1Jhu Pei-Sin2Chang Rwei-Ching3Department of Mechanical Engineering, National Taiwan University of Science and TechnologyDepartment of Mechanical Engineering, National Taiwan University of Science and TechnologyDepartment of Mechanical and Computer-Aided Engineering, St. John’s UniversityDepartment of Mechanical and Computer-Aided Engineering, St. John’s UniversityVarious encapsulated films for flexible organic light emitting diodes (OLEDs) were studied in this work, where gas barrier layers including inorganic Al2O3 thin films prepared by atomic layer deposition, organic Parylene C thin films prepared by chemical vapor deposition, and their combination were considered. The transmittance and water vapor transmission rate of the various organic and inorgabic encapsulated films were tested. The effects of the encapsulated films on the luminance and current density of the OLEDs were discussed, and the life time experiments of the OLEDs with these encapsulated films were also conducted. The results showed that the transmittance are acceptable even the PET substrate were coated two Al2O3 and Parylene C layers. The results also indicated the WVTR of the PET substrate improved by coating the barrier layers. In the encapsulation performance, it indicates the OLED with Al2O3 /PET, 1 pair/PET, and 2 pairs/PET presents similarly higher luminance than the other two cases. Although the 1 pair/PET encapsulation behaves a litter better luminance than the 2 pairs/PET encapsulation, the 2 pairs/PET encapsulation has much better life time. The OLED with 2 pairs/PET encapsulation behaves near double life time to the 1 pair encapsulation, and four times to none encapsulation.http://dx.doi.org/10.1051/matecconf/20167104001 |
| spellingShingle | Tsai Fa-Ta Chao Ching-Kong Jhu Pei-Sin Chang Rwei-Ching Thin film Encapsulations of Flexible Organic Light Emitting Diodes MATEC Web of Conferences |
| title | Thin film Encapsulations of Flexible Organic Light Emitting Diodes |
| title_full | Thin film Encapsulations of Flexible Organic Light Emitting Diodes |
| title_fullStr | Thin film Encapsulations of Flexible Organic Light Emitting Diodes |
| title_full_unstemmed | Thin film Encapsulations of Flexible Organic Light Emitting Diodes |
| title_short | Thin film Encapsulations of Flexible Organic Light Emitting Diodes |
| title_sort | thin film encapsulations of flexible organic light emitting diodes |
| url | http://dx.doi.org/10.1051/matecconf/20167104001 |
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