Konthoujam James Singh, Xiaotong Fan, Annada Sankar Sadhu, Chun-Ho Lin, Fang-Jyun Liou, Tingzhu Wu, Yu-Jung Lu, Jr-Hau He, Zhong Chen, Tom Wu, Hao-Chung Kuo. CsPbBr3 perovskite quantum-dot paper exhibiting a highest 3 dB bandwidth and realizing a flexible white-light system for visible-light communication[J]. Photonics Research, 2021, 9(12): 2341
- Photonics Research
- Vol. 9, Issue 12, 2341 (2021)
Fig. 1. (a) Schematic of semipolar micro-LED structure; (b) optical microscopy image of micro-LED.
Fig. 2. Fabrication of white-light system.
Fig. 3. (a) XRD patterns, (b) TEM images; inset: × 5 , 000 , 000
Fig. 4. (a) L–I–V characteristics of semipolar micro-LED; (b) EL spectra of semipolar micro-LED with increasing injection current; (c) peak wavelengths of c -plane and semipolar micro-LEDs for 1 − 1200 A / cm 2
Fig. 5. (a) White-light spectrum generated using semipolar micro-LED and PQD and CdSe QD papers. Inset: photograph of flexible white-light system. (b) Color gamut of white-light system according to CIE 1931 color space under various current densities.
Fig. 6. Schematic of experimental setup for VLC bandwidth measurement.
Fig. 7. (a) Frequency responses for semipolar blue micro-LED; inset: eye diagram. (b) Comparison of bandwidth of PQD paper in nanostructure with that of PQD film; inset: eye diagram for PQD paper.
Fig. 8. Benchmark of 3 dB bandwidth for QDs with applied current.
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Table 1. Overview of Reported QDs for VLC
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