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Abstract
Quantum dots (QDs) have attracted tremendous attention due to their outstanding optical properties, which show great potential for next generation lighting and displays. In particular, dual-color QDs (green- and red-emitting) offer significant advantages over the conventional phosphors used in white light-emitting diode (WLED) applications, which are replacing traditional fluorescent lamps due to their improved energy efficiency. However, a facile synthesis of well-controlled dual-color QDs is still one of the major constraints on a wider application of QD-WLEDs. Here, we report a developed one-pot synthesis method to produce dual-color QDs for WLED application. The size and fraction of red and green QDs can be controlled precisely during the synthetic process using HDA and HDA/TOPO as sophisticated capping reagents, respectively, thus manifesting decent optical properties and remarkably enhanced stability. One of our samples, GR0.75 QDs, is demonstrated to produce pure white color in a fabricated WLED device up to 18 hours. Based on advanced characterization, our findings reveal the critical role of the specific capping reagent in the synthesis and structure control of dual-color QDs, while the results regarding the enhanced stability may broaden the avenues for future QD-WLED applications.
Original language | English |
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Pages (from-to) | 3089-3096 |
Number of pages | 8 |
Journal | Journal of Materials Chemistry C |
Volume | 6 |
Issue number | 12 |
DOIs | |
State | Published - 2018 |
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Dive into the research topics of 'Developed one-pot synthesis of dual-color CdSe quantum dots for white light-emitting diode application'. Together they form a unique fingerprint.Projects
- 1 Finished
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Pt-Based Catalysts for Low Temperature Fuel Cells: Computational Prediction and Experimental Validation(3/3)
Wang, K.-W. (PI)
1/08/17 → 31/07/18
Project: Research