UtmoLight launches integrated solutions for production of perovskite solar cells

China-based perovskite photovoltaic module developer, UtmoLight, recently launched its new integrated solutions, named Utmorigin that reportedly enable large-area preparation, high efficiency and high stability of perovskite solar cells and include three novel techniques.

During the press conference held for the launch, UtmoLight signed strategic cooperation agreements with partners including SVOLT, an emerging lithium batteries company, FTXT which specializes in hydrogen energy and fuel cell technology, and Greatwall Estate. Together they will explore the application of perovskite solar technology in hydrogen production, energy storage, green construction and more.

According to Dr. Zheng Ce, co-founder and deputy general manager of UtmoLight, "Methylamine-free perovskite solar cells warrant higher efficiency and better stability in theory, but large-area preparation of methylamine-free perovskite film has been a challenge for the industry. In addition to the optimal precursor proportions from theoretical calculations, the UtmoLight formulation contains phase stabilizer and passivation agents which guarantee the stability, high efficiency and large-area preparation of perovskite solar cells."

"In-situ film crystallization" is an innovative preparation technique for large-area, high-quality and high-stability perovskite film layer. The technique ensures satisfying conformity and yield, and is compatible with perovskite-silicon tandem cells. The nanoparticle conductive ink for the charge transport layer is made from a unique formulation by UtmoLight. The charge transport layer made from the ink is highly conductive, dense and protects the perovskite layer, thus improves the conversion efficiency and long-term stability of perovskite solar cells," added Dr. Zheng.

Adopting these techniques, UtmoLight perovskite solar modules reportedly achieve a certified efficiency of 20.5% with an area of 63.98cm². Presently, the team is also applying the same techniques to 30cm² perovskite modules and expects to exceed 19% efficiency soon. Meanwhile, construction of a pilot line of one-square-meter size perovskite modules is commencing in the third quarter of 2021 with the product expected to reach market next year.