The four core advantages of perovskite solar cells
Compared to crystalline silicon, perovskite has four core advantages: high optoelectronic conversion efficiency, abundant and easy-to-synthesize raw materials, short production process, and diverse application scenarios.
High Optoelectronic Conversion Efficiency
According to data, the theoretical efficiency limit of single-junction crystalline silicon cells is around 29%, while the theoretical efficiency of a single-junction perovskite photovoltaic cell can reach 31%. Perovskite tandem cells, including crystalline silicon/perovskite double-junction tandem cells, can achieve a conversion efficiency of up to 35%. The theoretical efficiency of perovskite triple-junction cells can exceed 45%, which is why the industry believes that perovskite has the potential to become the next generation of mainstream photovoltaic technology.
Abundant Materials and Easy Synthesis
The primary raw material for crystalline silicon cells is polysilicon, which requires a significant amount of energy to purify the raw silicon material. In contrast, perovskite cells do not require silicon material in their production process. The raw materials needed for perovskite metal halide synthesis are abundant, inexpensive, and do not involve complex processes. The purity requirements for precursor solutions are not high, and the production environment does not need to be as controlled as for crystalline silicon cells. Additionally, the processing temperature for perovskite cells is much lower, resulting in lower energy consumption during production, and most of the process does not require a vacuum environment. Currently, the largest proportion of perovskite module costs comes from electrode materials (37%), while the cost of perovskite material itself accounts for only 5%. This indicates significant future potential for cost reduction in perovskite modules.
Short Production Process
Crystalline silicon cells typically require four manufacturing stages: silicon material, silicon wafers, cells, and modules, which take at least three days. In contrast, the production process of perovskite cells is simple, and it can take as little as 45 minutes to convert glass, adhesive films, target materials, and chemical raw materials into a module in a single factory. This shortens the industrial chain significantly, concentrating value.
Diverse Application Scenarios
Perovskite has characteristics such as light weight, flexibility, and high low-light efficiency, making it suitable for a wide range of downstream applications. These include photovoltaic buildings, power-generating facades, power-generating stones, rooftop photovoltaics, mobile devices, electronic products, networked sensors, and more. As technology advances, the application scenarios for perovskite continue to expand and offer significant potential.
This concludes Hengyuantai’s introduction to the four core advantages of perovskite solar cells.