This paper presents the fundamental study on the relationship between LED light sources and the performance of solar cell as receivers in visible light communication (VLC) links. Here, different colors of LEDs are modulated with a sinusoidal signal, and the bandwidth of the VLC system based on various c-Si PV architectures is characterized at different bias voltages. The preliminary results show that the bandwidth of such VLC system is highly influenced by the bias voltage, where higher bias voltage leads to lower bandwidth. This means that there is a trade-off between energy harvesting and communication performance when solar cells are used as VLC receivers. Meanwhile, we also observed that the bandwidth decreases as the LED irradiance level increases, and the color of LED (currently red and blue LEDs are characterized) does not pose a significant impact on the bandwidth. The highest bandwidth is found at 50 kHz for a VLC system using a 6-in TOPCON solar cell under 100 W/m2 with 100 mV bias voltage.
|Title of host publication||Proceedings of the 2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)|
|Number of pages||5|
|Publication status||Published - 2023|
|Event||2023 8th International Conference on Smart and Sustainable Technologies (SpliTech) - Split/Bol, Croatia|
Duration: 20 Jun 2023 → 23 Jun 2023
Conference number: 8th
|Conference||2023 8th International Conference on Smart and Sustainable Technologies (SpliTech)|
|Period||20/06/23 → 23/06/23|
Bibliographical noteGreen Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
- visible light communication (VLC)
- solar cells
- LED colors