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- W4296285931 endingPage "167175" @default.
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- W4296285931 abstract "To achieve large-scale commercialized use of white quantum dots light-emitting diodes (WQLEDs). It is vital to find environmentally friendly and inexpensive luminescent materials without rare earth participation. In this paper, the zinc sulfide quantum dots with different Cu2+ contents (ZnS:Cu-QDs) were prepared by one-step hydrothermal method, the quantum yield can reach 27.65 % and the thermal decomposition temperature is 610 ℃. Furthermore, the luminescence mechanism of ZnS:Cu-QDs was explored. The wavelength-tunable WQLEDs were fabricated. The WQLEDs exhibit from standard white light to warm white light with a relative colour temperature in the range of 4764–3851 K. The as-prepared WQLEDs from ZnS:Cu0.8 %-QDs show a warm white light with International Commission on Illumination (CIE) coordinates of (0.4009, 0.4265), colour rendering index (CRI) of 72.1, and the correlated colour temperature (CCT) of 3851 K at an input voltage of 3.4 V. This research provides a promising way for achieving WQLEDs by single phase quantum dots without the addition of rare-earth elements." @default.
- W4296285931 created "2022-09-19" @default.
- W4296285931 creator A5006259943 @default.
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- W4296285931 date "2022-12-01" @default.
- W4296285931 modified "2023-09-25" @default.
- W4296285931 title "Single-phase colour-tunable yellow light copper doped zinc sulfide quantum dots for fabrication of white LEDs" @default.
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- W4296285931 doi "https://doi.org/10.1016/j.jallcom.2022.167175" @default.
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