{"title":"TiO<sub>2</sub>-Nanobelt-Enhanced, Phosphorescent, Organic Light-Emitting Diodes.","authors":"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","doi":"10.3390/nano15030199","DOIUrl":null,"url":null,"abstract":"<p><p>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.</p>","PeriodicalId":18966,"journal":{"name":"Nanomaterials","volume":"15 3","pages":""},"PeriodicalIF":4.3000,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11821214/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanomaterials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.3390/nano15030199","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
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Abstract
This study investigates the enhancement of organic light-emitting diode (OLED) performance through the integration of titanium dioxide (TiO2) nanocomposites within a poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT/PSS) matrix. The nanocomposite films were prepared using a controlled dispersion of TiO2 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 TiO2. 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 TiO2 nanobelts into PEDOT/PSS led to significant efficiency enhancements, yielding a 39% increase in PEmax, a 37% improvement in CEmax, and a remarkable 72% rise in EQEmax compared to the undoped counterpart. This research provides insight into the potential of TiO2 nanocomposites in advancing OLED technology for next-generation display and lighting applications.
期刊介绍：
Nanomaterials (ISSN 2076-4991) is an international and interdisciplinary scholarly open access journal. It publishes reviews, regular research papers, communications, and short notes that are relevant to any field of study that involves nanomaterials, with respect to their science and application. Thus, theoretical and experimental articles will be accepted, along with articles that deal with the synthesis and use of nanomaterials. Articles that synthesize information from multiple fields, and which place discoveries within a broader context, will be preferred. There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental or methodical details, or both, must be provided for research articles. Computed data or files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. Nanomaterials is dedicated to a high scientific standard. All manuscripts undergo a rigorous reviewing process and decisions are based on the recommendations of independent reviewers.
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