Efficiency Enhancement of Organic Light-Emitting Diodes on Flexible Substrate With Patterned Inverted Conical Structure
The total internal reflection effect in conventional electroluminescent devices causes a large amount of light energy to be trapped in devices and induces heat energy that adversely affects the performance of the device. To enhance the light outcoupling efficiency without sacrificing the electrical...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2016-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7360111/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849422759630733312 |
|---|---|
| author | Yi-Jun Wang Jian-Gang Lu Han-Ping D. Shieh |
| author_facet | Yi-Jun Wang Jian-Gang Lu Han-Ping D. Shieh |
| author_sort | Yi-Jun Wang |
| collection | DOAJ |
| description | The total internal reflection effect in conventional electroluminescent devices causes a large amount of light energy to be trapped in devices and induces heat energy that adversely affects the performance of the device. To enhance the light outcoupling efficiency without sacrificing the electrical properties, a patterned inverted conical (PIC) structure fabricated by a focused femtosecond laser on a flexible substrate was demonstrated. Compared with the conventional flexible organic light-emitting diode (OLED), the OLED with the PIC structure exhibited a current efficiency increase of a factor of 2.6 with no emission spectrum altered. In addition, the flexible OLED with PIC substrate can avoid the mirror reflection effect under the strong ambient light for a better visual experience. This highly effective method is compatible with the current device fabrication process and is applicable for full-color OLED display and lighting. |
| format | Article |
| id | doaj-art-b60684b35a0a40f199f616d791d45d18 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-b60684b35a0a40f199f616d791d45d182025-08-20T03:30:56ZengIEEEIEEE Photonics Journal1943-06552016-01-01811810.1109/JPHOT.2015.25098627360111Efficiency Enhancement of Organic Light-Emitting Diodes on Flexible Substrate With Patterned Inverted Conical StructureYi-Jun Wang0Jian-Gang Lu1Han-Ping D. Shieh2National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, ChinaNational Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, ChinaNational Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, ChinaThe total internal reflection effect in conventional electroluminescent devices causes a large amount of light energy to be trapped in devices and induces heat energy that adversely affects the performance of the device. To enhance the light outcoupling efficiency without sacrificing the electrical properties, a patterned inverted conical (PIC) structure fabricated by a focused femtosecond laser on a flexible substrate was demonstrated. Compared with the conventional flexible organic light-emitting diode (OLED), the OLED with the PIC structure exhibited a current efficiency increase of a factor of 2.6 with no emission spectrum altered. In addition, the flexible OLED with PIC substrate can avoid the mirror reflection effect under the strong ambient light for a better visual experience. This highly effective method is compatible with the current device fabrication process and is applicable for full-color OLED display and lighting.https://ieeexplore.ieee.org/document/7360111/Micro-optical devicesoptoelectronicsmicrostructure fabrication |
| spellingShingle | Yi-Jun Wang Jian-Gang Lu Han-Ping D. Shieh Efficiency Enhancement of Organic Light-Emitting Diodes on Flexible Substrate With Patterned Inverted Conical Structure IEEE Photonics Journal Micro-optical devices optoelectronics microstructure fabrication |
| title | Efficiency Enhancement of Organic Light-Emitting Diodes on Flexible Substrate With Patterned Inverted Conical Structure |
| title_full | Efficiency Enhancement of Organic Light-Emitting Diodes on Flexible Substrate With Patterned Inverted Conical Structure |
| title_fullStr | Efficiency Enhancement of Organic Light-Emitting Diodes on Flexible Substrate With Patterned Inverted Conical Structure |
| title_full_unstemmed | Efficiency Enhancement of Organic Light-Emitting Diodes on Flexible Substrate With Patterned Inverted Conical Structure |
| title_short | Efficiency Enhancement of Organic Light-Emitting Diodes on Flexible Substrate With Patterned Inverted Conical Structure |
| title_sort | efficiency enhancement of organic light emitting diodes on flexible substrate with patterned inverted conical structure |
| topic | Micro-optical devices optoelectronics microstructure fabrication |
| url | https://ieeexplore.ieee.org/document/7360111/ |
| work_keys_str_mv | AT yijunwang efficiencyenhancementoforganiclightemittingdiodesonflexiblesubstratewithpatternedinvertedconicalstructure AT jianganglu efficiencyenhancementoforganiclightemittingdiodesonflexiblesubstratewithpatternedinvertedconicalstructure AT hanpingdshieh efficiencyenhancementoforganiclightemittingdiodesonflexiblesubstratewithpatternedinvertedconicalstructure |