Two-Dimensional Transition Metal Dichalcogenide: Synthesis, Characterization, and Application in Candlelight OLED
Low-color-temperature candlelight organic light-emitting diodes (OLEDs) offer a healthier lighting alternative by minimizing blue light exposure, which is known to disrupt circadian rhythms, suppress melatonin, and potentially harm the retina with prolonged use. In this study, we explore the integra...
Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/30/1/27 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841549148555313152 |
|---|---|
| author | Dipanshu Sharma Sanna Gull Anbalagan Ramakrishnan Sushanta Lenka Anil Kumar Krishan Kumar Pin-Kuan Lin Ching-Wu Wang Sinn-Wen Chen Saulius Grigalevicius Jwo-Huei Jou |
| author_facet | Dipanshu Sharma Sanna Gull Anbalagan Ramakrishnan Sushanta Lenka Anil Kumar Krishan Kumar Pin-Kuan Lin Ching-Wu Wang Sinn-Wen Chen Saulius Grigalevicius Jwo-Huei Jou |
| author_sort | Dipanshu Sharma |
| collection | DOAJ |
| description | Low-color-temperature candlelight organic light-emitting diodes (OLEDs) offer a healthier lighting alternative by minimizing blue light exposure, which is known to disrupt circadian rhythms, suppress melatonin, and potentially harm the retina with prolonged use. In this study, we explore the integration of transition metal dichalcogenides (TMDs), specifically molybdenum disulfide (MoS<sub>2</sub>) and tungsten disulfide (WS<sub>2</sub>), into the hole injection layers (HILs) of OLEDs to enhance their performance. The TMDs, which are known for their superior carrier mobility, optical properties, and 2D layered structure, were doped at levels of 0%, 5%, 10%, and 15% in PEDOT:PSS-based HILs. Our findings reveal that OLEDs doped with 10% MoS<sub>2</sub> exhibit notable enhancements in power efficacy (PE), current efficacy (CE), and external quantum efficiency (EQE) of approximately 39%, 21%, and 40%, respectively. In comparison, OLEDs incorporating 10% of WS<sub>2</sub> achieve a PE of 28%, a CE of 20%, and an EQE of 35%. The enhanced performance of the MoS<sub>2</sub>-doped devices is attributed to their superior hole injection and balanced carrier transport properties, resulting in more efficient operation. These results highlight the potential of incorporating 2D TMDs, especially MoS<sub>2</sub>, into OLED technology as a promising strategy to enhance energy efficiency. This approach aligns with environmental, social, and governance (ESG) goals by emphasizing reduced environmental impact and promoting ethical practices in technology development. The improved performance metrics of these TMD-doped OLEDs suggest a viable path towards creating more energy-efficient and health-conscious lighting solutions. |
| format | Article |
| id | doaj-art-71cbd61324764309b970a554311d51bb |
| institution | Kabale University |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-71cbd61324764309b970a554311d51bb2025-01-10T13:18:39ZengMDPI AGMolecules1420-30492024-12-013012710.3390/molecules30010027Two-Dimensional Transition Metal Dichalcogenide: Synthesis, Characterization, and Application in Candlelight OLEDDipanshu Sharma0Sanna Gull1Anbalagan Ramakrishnan2Sushanta Lenka3Anil Kumar4Krishan Kumar5Pin-Kuan Lin6Ching-Wu Wang7Sinn-Wen Chen8Saulius Grigalevicius9Jwo-Huei Jou10Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Guang-Fu Road, Hsinchu 30013, TaiwanDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Guang-Fu Road, Hsinchu 30013, TaiwanDepartment of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Guang-Fu Road, Hsinchu 30013, TaiwanDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Guang-Fu Road, Hsinchu 30013, TaiwanDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Guang-Fu Road, Hsinchu 30013, TaiwanSchool of Chemical Sciences Indian Institute of Technology, Mandi 175005, Himachal Pradesh, IndiaDepartment of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Guang-Fu Road, Hsinchu 30013, TaiwanGraduate Institute of Opto-Mechatronics, Department of Mechanical Engineering, National Chung Cheng University, Chiayi County 62102, TaiwanDepartment of Chemical Engineering, National Tsing Hua University, 101, Sec. 2, Guang-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, Guang-Fu Road, Hsinchu 30013, TaiwanLow-color-temperature candlelight organic light-emitting diodes (OLEDs) offer a healthier lighting alternative by minimizing blue light exposure, which is known to disrupt circadian rhythms, suppress melatonin, and potentially harm the retina with prolonged use. In this study, we explore the integration of transition metal dichalcogenides (TMDs), specifically molybdenum disulfide (MoS<sub>2</sub>) and tungsten disulfide (WS<sub>2</sub>), into the hole injection layers (HILs) of OLEDs to enhance their performance. The TMDs, which are known for their superior carrier mobility, optical properties, and 2D layered structure, were doped at levels of 0%, 5%, 10%, and 15% in PEDOT:PSS-based HILs. Our findings reveal that OLEDs doped with 10% MoS<sub>2</sub> exhibit notable enhancements in power efficacy (PE), current efficacy (CE), and external quantum efficiency (EQE) of approximately 39%, 21%, and 40%, respectively. In comparison, OLEDs incorporating 10% of WS<sub>2</sub> achieve a PE of 28%, a CE of 20%, and an EQE of 35%. The enhanced performance of the MoS<sub>2</sub>-doped devices is attributed to their superior hole injection and balanced carrier transport properties, resulting in more efficient operation. These results highlight the potential of incorporating 2D TMDs, especially MoS<sub>2</sub>, into OLED technology as a promising strategy to enhance energy efficiency. This approach aligns with environmental, social, and governance (ESG) goals by emphasizing reduced environmental impact and promoting ethical practices in technology development. The improved performance metrics of these TMD-doped OLEDs suggest a viable path towards creating more energy-efficient and health-conscious lighting solutions.https://www.mdpi.com/1420-3049/30/1/27candlelight OLEDsTMDsESG goalscolor temperatureHIL |
| spellingShingle | Dipanshu Sharma Sanna Gull Anbalagan Ramakrishnan Sushanta Lenka Anil Kumar Krishan Kumar Pin-Kuan Lin Ching-Wu Wang Sinn-Wen Chen Saulius Grigalevicius Jwo-Huei Jou Two-Dimensional Transition Metal Dichalcogenide: Synthesis, Characterization, and Application in Candlelight OLED Molecules candlelight OLEDs TMDs ESG goals color temperature HIL |
| title | Two-Dimensional Transition Metal Dichalcogenide: Synthesis, Characterization, and Application in Candlelight OLED |
| title_full | Two-Dimensional Transition Metal Dichalcogenide: Synthesis, Characterization, and Application in Candlelight OLED |
| title_fullStr | Two-Dimensional Transition Metal Dichalcogenide: Synthesis, Characterization, and Application in Candlelight OLED |
| title_full_unstemmed | Two-Dimensional Transition Metal Dichalcogenide: Synthesis, Characterization, and Application in Candlelight OLED |
| title_short | Two-Dimensional Transition Metal Dichalcogenide: Synthesis, Characterization, and Application in Candlelight OLED |
| title_sort | two dimensional transition metal dichalcogenide synthesis characterization and application in candlelight oled |
| topic | candlelight OLEDs TMDs ESG goals color temperature HIL |
| url | https://www.mdpi.com/1420-3049/30/1/27 |
| work_keys_str_mv | AT dipanshusharma twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT sannagull twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT anbalaganramakrishnan twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT sushantalenka twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT anilkumar twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT krishankumar twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT pinkuanlin twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT chingwuwang twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT sinnwenchen twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT sauliusgrigalevicius twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled AT jwohueijou twodimensionaltransitionmetaldichalcogenidesynthesischaracterizationandapplicationincandlelightoled |