Potassium Iodide Do** for Vacancy Substitution and Dangling Bond Repair in InP Core-Shell Quantum Dots
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Synthesis of Core/Multi-Shell QDs
2.2.1. Preparation of Stock Solutions
2.2.2. Synthesis of KI-Doped Red-Light-Emitting InxP1−x Core QDs
2.2.3. Synthesis of Red-Light-Emitting KI-Doped InxP1−x/Zn0.6Se0.4/Zn0.6Se0.1S0.3/Zn0.5S0.5 Core/Multi-Shell QDs
2.3. Characterizations
3. Results and Discussion
3.1. Dependence of Defect Passivation Efficiency on KI Dopant Concentration for KI-Doped InxP1−x Core QDs
3.2. Dependence of Photo-Optical Properties (i.e., Absorption, PL Spectra, and Time-Resolved PL Decay Curves) on Dopant (i.e., KI) Concentration for Red-Light-Emitting InxP1−x/Zn0.6Se0.4/Zn0.6Se0.1S0.3/Zn0.5S0.5 Core/Multi-Shell QDs
3.3. Color Gamut Performance of QD Functional CF-OLED Hybrid Display Using KI-Doped R-, G-, and B-QD Functional CFs and Blue OLED BLU
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Applications | Light-Emitting Color | WL [nm] | FWHM [nm] | CIE Coordinates [x, y] | Color Gamut | Ref. | |
---|---|---|---|---|---|---|---|
NTSC | Rec. 2020 (BT.2020) | ||||||
QD functional-CF OLED for undoped R-QD | Blue | 447 | 29 | (0.15, 0.02) | 125.8% | 94.2% | Our work |
Green | 533 | 22 | (0.20, 0.77) | ||||
Red | 628 | 34 | (0.70, 0.29) | ||||
QD functional-CF OLED for 3% KI doped R-QD | Blue | 447 | 29 | (0.15, 0.02) | 131.1% | 98.2% | |
Green | 533 | 22 | (0.20, 0.77) | ||||
Red | 635 | 28 | (0.72, 0.27) | ||||
Flexible full-color active-matrix QD-OLED display 13.6 inch (1920 × 1080) | Blue | 461 | 26 | (0.137, 0.063) | 93.0% | - | [110] |
Inkjet-printed 6.6-inch red active matrix QD-OLED display panel with a resolution of 384 × 300 pixels with R-CdSe/ZnS QDs | BOLED | 462 | 21 | (0.136, 0.0693) | The maximum light conversion efficiency reached 32.7% | [111] | |
QD-BOLED | 630 | 35 | (0.721, 0.279) |
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Lee, J.-E.; Lee, C.-J.; Lee, S.-J.; Jeong, U.-H.; Park, J.-G. Potassium Iodide Do** for Vacancy Substitution and Dangling Bond Repair in InP Core-Shell Quantum Dots. Nanomaterials 2024, 14, 1055. https://doi.org/10.3390/nano14121055
Lee J-E, Lee C-J, Lee S-J, Jeong U-H, Park J-G. Potassium Iodide Do** for Vacancy Substitution and Dangling Bond Repair in InP Core-Shell Quantum Dots. Nanomaterials. 2024; 14(12):1055. https://doi.org/10.3390/nano14121055
Chicago/Turabian StyleLee, Ji-Eun, Chang-** Lee, Seung-Jae Lee, Ui-Hyun Jeong, and Jea-Gun Park. 2024. "Potassium Iodide Do** for Vacancy Substitution and Dangling Bond Repair in InP Core-Shell Quantum Dots" Nanomaterials 14, no. 12: 1055. https://doi.org/10.3390/nano14121055