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Self-powered Perovskite solar cell receiver for visible light communications
Optics Express
|May 4, 2026
Summary
Perovskite solar cells (PSCs) enable self-powered optical receivers for the Internet of Things (IoT) and 6G networks. These high-sensitivity PSC receivers achieve 290 kb/s data rates, demonstrating potential for energy-autonomous visible light communication (VLC) systems.
Area of Science:
- Optoelectronics
- Materials Science
- Wireless Communications
Background:
- Energy-autonomous nodes are crucial for the Internet of Things (IoT) and future 6G networks.
- Self-powered optical receivers are essential components for these energy-constrained systems.
- Visible Light Communication (VLC) offers a promising wireless communication technology.
Purpose of the Study:
- To demonstrate a visible light communication (VLC) system using a perovskite solar cell (PSC) as a self-powered, high-sensitivity receiver.
- To evaluate the photovoltaic performance and weak-light detection capabilities of the PSC receiver.
- To assess the data transmission rate and power generation of the PSC under various light conditions.
Main Methods:
- Utilized a perovskite solar cell (PSC) as a self-powered optical receiver without external bias.
- Characterized the photovoltaic performance, including power conversion efficiency (PCE) and output power.
- Measured specific detectivity under weak-light conditions, comparing photocurrent density to dark-current density.
- Implemented on-off keying (OOK) modulation for data transmission at 290 kb/s over 20 cm.
- Emulated long-range transmission using a neutral-density filter to attenuate light and assessed data rate and power generation.
Main Results:
- The PSC achieved an excellent PCE of 25.85% and an output power of 467.96 mW.
- The PSC demonstrated high specific detectivity in weak light (5.73 µW/cm²), with photocurrent density three orders of magnitude higher than dark-current density.
- A data rate of 290 kb/s was achieved at 20 cm transmission distance.
- Even under attenuated light (OD 0.6), a data rate of 220 kb/s was sustained while generating 77.69 mW of power.
Conclusions:
- Perovskite solar cells function as highly sensitive, self-powered receivers for VLC systems.
- The demonstrated PSC receiver exhibits robust power budget and high sensitivity, suitable for weak-light conditions.
- PSCs show significant potential for enabling long-range, energy-autonomous VLC links, particularly in outdoor environments.
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