Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional Materials
Light-emitting diodes (LEDs) are considered to be the most promising energy-saving technology for future lighting and display. Two-dimensional (2D) materials, a class of materials comprised of monolayer or few layers of atoms (or unit cells), have attracted much attention in recent years, due to the...
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| Format: | Article |
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MDPI AG
2019-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/19/4140 |
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| author | Yuanming Zhou Sijiong Mei Dongwei Sun Neng Liu Fei Mei Jinxia Xu Xianan Cao |
| author_facet | Yuanming Zhou Sijiong Mei Dongwei Sun Neng Liu Fei Mei Jinxia Xu Xianan Cao |
| author_sort | Yuanming Zhou |
| collection | DOAJ |
| description | Light-emitting diodes (LEDs) are considered to be the most promising energy-saving technology for future lighting and display. Two-dimensional (2D) materials, a class of materials comprised of monolayer or few layers of atoms (or unit cells), have attracted much attention in recent years, due to their unique physical and chemical properties. Here, we summarize the recent advances on the applications of 2D materials for improving the performance of LEDs, including organic light emitting diodes (OLEDs), quantum dot light emitting diodes (QLEDs) and perovskite light emitting diodes (PeLEDs), using organic films, quantum dots and perovskite films as emission layers (EMLs), respectively. Two dimensional materials, including graphene and its derivatives and transition metal dichalcogenides (TMDs), can be employed as interlayers and dopant in composite functional layers for high-efficiency LEDs, suggesting the extensive application in LEDs. The functions of 2D materials used in LEDs include the improved work function, effective electron blocking, suppressed exciton quenching and reduced surface roughness. The potential application of 2D materials in PeLEDs is also presented and analyzed. |
| first_indexed | 2024-12-22T14:05:23Z |
| format | Article |
| id | doaj.art-7e91cdaa9e9e44d69d2c92047a10b69b |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-22T14:05:23Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-7e91cdaa9e9e44d69d2c92047a10b69b2022-12-21T18:23:19ZengMDPI AGApplied Sciences2076-34172019-10-01919414010.3390/app9194140app9194140Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional MaterialsYuanming Zhou0Sijiong Mei1Dongwei Sun2Neng Liu3Fei Mei4Jinxia Xu5Xianan Cao6Hubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, ChinaHubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, ChinaHubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, ChinaHubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, ChinaHubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, ChinaHubei Key Laboratory for High-Efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, ChinaDepartment of Computer Science and Electrical Engineering, West Virginia University, Morgantown, WV 26506, USALight-emitting diodes (LEDs) are considered to be the most promising energy-saving technology for future lighting and display. Two-dimensional (2D) materials, a class of materials comprised of monolayer or few layers of atoms (or unit cells), have attracted much attention in recent years, due to their unique physical and chemical properties. Here, we summarize the recent advances on the applications of 2D materials for improving the performance of LEDs, including organic light emitting diodes (OLEDs), quantum dot light emitting diodes (QLEDs) and perovskite light emitting diodes (PeLEDs), using organic films, quantum dots and perovskite films as emission layers (EMLs), respectively. Two dimensional materials, including graphene and its derivatives and transition metal dichalcogenides (TMDs), can be employed as interlayers and dopant in composite functional layers for high-efficiency LEDs, suggesting the extensive application in LEDs. The functions of 2D materials used in LEDs include the improved work function, effective electron blocking, suppressed exciton quenching and reduced surface roughness. The potential application of 2D materials in PeLEDs is also presented and analyzed.https://www.mdpi.com/2076-3417/9/19/4140organic light emitting diodesquantum dot light emitting diodesperovskite light emitting diodestwo-dimensional materials |
| spellingShingle | Yuanming Zhou Sijiong Mei Dongwei Sun Neng Liu Fei Mei Jinxia Xu Xianan Cao Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional Materials Applied Sciences organic light emitting diodes quantum dot light emitting diodes perovskite light emitting diodes two-dimensional materials |
| title | Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional Materials |
| title_full | Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional Materials |
| title_fullStr | Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional Materials |
| title_full_unstemmed | Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional Materials |
| title_short | Improved Charge Injection and Transport of Light-Emitting Diodes Based on Two-Dimensional Materials |
| title_sort | improved charge injection and transport of light emitting diodes based on two dimensional materials |
| topic | organic light emitting diodes quantum dot light emitting diodes perovskite light emitting diodes two-dimensional materials |
| url | https://www.mdpi.com/2076-3417/9/19/4140 |
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