Publication date: 17th February 2025
The increasing adoption of solar energy as a sustainable power source has driven significant advancements in photovoltaic technologies. Among these, perovskite-based devices have emerged as a highly promising option due to their impressive efficiency and versatility. While perovskite solar cells are predominantly in the research and development phase, their unique properties present opportunities for applications beyond energy generation. This study investigates the feasibility of utilizing perovskite devices as irradiation sensors, aiming to develop an accurate and cost-effective alternative to existing market solutions. The measurement of irradiation levels is a crucial parameter due to its significant impact on photovoltaic (PV) performance [1]. Current irradiation sensors, such as the Si-V-1.5TC model, provide reliable measurements but come with a significant cost, approximately 350 euros per unit. In contrast, perovskite devices, owing to their scalable fabrication processes and lower material costs, have the potential to offer a more affordable solution. This work transitions perovskite technology from a laboratory setting to practical application, exploring its ability to function as an irradiation sensor with high precision and economic viability. The experimental setup involved a perovskite device with six active pixels. The device was not encapsulated to evaluate its performance under realistic environmental conditions. To monitor the device’s response to varying irradiation levels, we designed and implemented a measurement setup featuring an adjustable tilt angle. Figure 1 illustrates the irradiation levels recorded using the Si-V-1.5TC sensor with ±5% tolerance as a benchmark. The short-circuit current (ISC) of each pixel was measured 1 millisecond after the initial irradiation measurement.
Figure 2 highlights the short-circuit current (ISC) behavior of the perovskite pixels under varying irradiation levels. The data demonstrate a clear linear relationship, confirming the perovskite device’s sensitivity and reliability as an irradiation sensor.
Our study demonstrates that perovskite devices offer a cost-effective solution with comparable accuracy to existing technologies, paving the way for broader adoption in solar energy applications. Future work will focus on encapsulating the devices to improve their durability and exploring long-term stability under diverse environmental conditions.
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