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White electroluminescence from a poly(N-vinylcarbazole) layer doped with CdSe/CdS core–shell quantum dots
| Content Provider | Scilit |
|---|---|
| Author | Xuan, Yu Pan, Daocheng Zhao, Nana Ji, Xiangling Ma, Dongge |
| Copyright Year | 2006 |
| Description | Journal: Nanotechnology Hybrid organic/inorganic white light-emitting diodes (LEDs) were fabricated of semiconductor polymer poly(N-vinylcarbazole) (PVK) doped with CdSe/CdS core–shell semiconductor quantum dots (QDs). The device, with a structure of indium–tin-oxide (ITO)|3,4-polyethylene–dioxythiophene–polystyrene sulfonate (PEDOT:PSS)|PVK:CdSe/CdS|Al, emitted a pure white light spanning the whole visible region from 400 to 800 nm. The Commission Internationale del'Eclairage coordinates (CIE) remained at x = 0.33,y = 0.34 at wide applied voltages. The maximum brightness and electroluminescence (EL) efficiency reached 180 cd m−2 at 19 V and 0.21 cd A−1 at current density of 2 mA cm−2, respectively. The realization of the pure white light emission is attributed to the incomplete energy and charge transfer from PVK to CdSe/CdS core–shell QDs. |
| Related Links | http://iopscience.iop.org/0957-4484/17/19/032/pdf/0957-4484_17_19_032.pdf |
| Ending Page | 4969 |
| Page Count | 4 |
| Starting Page | 4966 |
| ISSN | 09574484 |
| e-ISSN | 13616528 |
| DOI | 10.1088/0957-4484/17/19/032 |
| Journal | Nanotechnology |
| Issue Number | 19 |
| Volume Number | 17 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2006-09-15 |
| Access Restriction | Open |
| Subject Keyword | Journal: Nanotechnology Electroluminescence |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering |
