TiO<sub>2</sub>-Nanobelt-Enhanced, Phosphorescent, Organic Light-Emitting Diodes
This study investigates the enhancement of organic light-emitting diode (OLED) performance through the integration of titanium dioxide (TiO<sub>2</sub>) nanocomposites within a poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT/PSS) matrix. The nanocomposite films were prepare...
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2025-01-01
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| author | Sushanta Lenka Shivam Gupta Bushra Rehman Deepak Kumar Dubey Hsuan-Min Wang Ankit Sharma Jayachandran Jayakumar Ching-Wu Wang Nyan-Hwa Tai Saulius Grigalevicius Jwo-Huei Jou |
| author_facet | Sushanta Lenka Shivam Gupta Bushra Rehman Deepak Kumar Dubey Hsuan-Min Wang Ankit Sharma Jayachandran Jayakumar Ching-Wu Wang Nyan-Hwa Tai Saulius Grigalevicius Jwo-Huei Jou |
| author_sort | Sushanta Lenka |
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| description | This study investigates the enhancement of organic light-emitting diode (OLED) performance through the integration of titanium dioxide (TiO<sub>2</sub>) nanocomposites within a poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT/PSS) matrix. The nanocomposite films were prepared using a controlled dispersion of TiO<sub>2</sub> belts into the PEDOT/PSS solution, followed by their incorporation into the OLED hole-injection layer (HIL). Our results demonstrate a significant improvement in device efficiency, attributed to the optimized charge carrier mobility and reduced recombination losses, which were achieved by the presence of TiO<sub>2</sub>. The nanocomposite hybrid layer enhances light emission efficiency due to its role in modifying surface roughness, promoting better film uniformity, and improving hole injection. The incorporation of TiO<sub>2</sub> nanobelts into PEDOT/PSS led to significant efficiency enhancements, yielding a 39% increase in PE<sub>max</sub>, a 37% improvement in CE<sub>max</sub>, and a remarkable 72% rise in EQE<sub>max</sub> compared to the undoped counterpart. This research provides insight into the potential of TiO<sub>2</sub> nanocomposites in advancing OLED technology for next-generation display and lighting applications. |
| format | Article |
| id | doaj-art-8d416eb75f72425e85a72141530fbeba |
| institution | OA Journals |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj-art-8d416eb75f72425e85a72141530fbeba2025-08-20T02:12:29ZengMDPI AGNanomaterials2079-49912025-01-0115319910.3390/nano15030199TiO<sub>2</sub>-Nanobelt-Enhanced, Phosphorescent, Organic Light-Emitting DiodesSushanta Lenka0Shivam Gupta1Bushra Rehman2Deepak Kumar Dubey3Hsuan-Min Wang4Ankit Sharma5Jayachandran Jayakumar6Ching-Wu Wang7Nyan-Hwa Tai8Saulius Grigalevicius9Jwo-Huei Jou10Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, TaiwanDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, TaiwanDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, TaiwanAdvance Research, First Solar Inc., Perrysburg, OH 43551, USADepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, TaiwanDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, TaiwanDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, TaiwanGraduate Institute of Optoelectronics, Department of Mechanical Engineering, National Chung Cheng University, Chiayi 62102, TaiwanDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, TaiwanDepartment of Polymer Chemistry and Technology, Kaunas University of Technology, Radvilenu Plentas 19, LT50254 Kaunas, LithuaniaDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, TaiwanThis study investigates the enhancement of organic light-emitting diode (OLED) performance through the integration of titanium dioxide (TiO<sub>2</sub>) nanocomposites within a poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT/PSS) matrix. The nanocomposite films were prepared using a controlled dispersion of TiO<sub>2</sub> belts into the PEDOT/PSS solution, followed by their incorporation into the OLED hole-injection layer (HIL). Our results demonstrate a significant improvement in device efficiency, attributed to the optimized charge carrier mobility and reduced recombination losses, which were achieved by the presence of TiO<sub>2</sub>. The nanocomposite hybrid layer enhances light emission efficiency due to its role in modifying surface roughness, promoting better film uniformity, and improving hole injection. The incorporation of TiO<sub>2</sub> nanobelts into PEDOT/PSS led to significant efficiency enhancements, yielding a 39% increase in PE<sub>max</sub>, a 37% improvement in CE<sub>max</sub>, and a remarkable 72% rise in EQE<sub>max</sub> compared to the undoped counterpart. This research provides insight into the potential of TiO<sub>2</sub> nanocomposites in advancing OLED technology for next-generation display and lighting applications.https://www.mdpi.com/2079-4991/15/3/199TiO<sub>2</sub> nanobeltshybrid hole-injection layerdopingOLED |
| spellingShingle | Sushanta Lenka Shivam Gupta Bushra Rehman Deepak Kumar Dubey Hsuan-Min Wang Ankit Sharma Jayachandran Jayakumar Ching-Wu Wang Nyan-Hwa Tai Saulius Grigalevicius Jwo-Huei Jou TiO<sub>2</sub>-Nanobelt-Enhanced, Phosphorescent, Organic Light-Emitting Diodes Nanomaterials TiO<sub>2</sub> nanobelts hybrid hole-injection layer doping OLED |
| title | TiO<sub>2</sub>-Nanobelt-Enhanced, Phosphorescent, Organic Light-Emitting Diodes |
| title_full | TiO<sub>2</sub>-Nanobelt-Enhanced, Phosphorescent, Organic Light-Emitting Diodes |
| title_fullStr | TiO<sub>2</sub>-Nanobelt-Enhanced, Phosphorescent, Organic Light-Emitting Diodes |
| title_full_unstemmed | TiO<sub>2</sub>-Nanobelt-Enhanced, Phosphorescent, Organic Light-Emitting Diodes |
| title_short | TiO<sub>2</sub>-Nanobelt-Enhanced, Phosphorescent, Organic Light-Emitting Diodes |
| title_sort | tio sub 2 sub nanobelt enhanced phosphorescent organic light emitting diodes |
| topic | TiO<sub>2</sub> nanobelts hybrid hole-injection layer doping OLED |
| url | https://www.mdpi.com/2079-4991/15/3/199 |
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