Testing conducted by the Helmholtz-Zentrum Berlin in Germany has shown that perovskite solar cells operating at high latitudes in Europe may suffer from higher performance losses in winter compared to conventional PV devices. The scientists warned, however, that at lower latitudes this seasonality may be less pronounced.

In a new scientific paper published in nature, the Chinese manufacturer presented a new tandem perovskite-silicon solar cell based on a bottom cell with a heterojunction design. It also used a new type of self-assembled monolayer that reportedly reduces non-radiative recombination and increases cell efficiency.

Scientists in India have proposed to design new tandem solar cells using transition metal dichalcogenide as an absorber material for the bottom PV device. Their simulations showed these tandem cells may reach an efficiency of more than 35%.

The Chinese manufacturer said the result was confirmed by TÜV Rheinland. It was achieved through a sunken pyramid structure that reportedly achieves selective-texture on the non-electrode area of rear-side and a zebra-crossing passivation contact structure that is said to ensure excellent passivation.

The tandem device is based on a bottom organic cell that can achieve a power conversion efficiency of 17.9% and a high short-circuit current density of 28.60 mA cm2. Furthermore, it uses a top perovskite solar cell with an open-circuit voltage of 1.37 V and a fill factor of 85.5%.

Chinese solar manufacturer Longi and Indonesian state-owned energy company Pertamina have started construction on a 1.4 GW solar cell and module production facility in West Java, Indonesia.

New research from Hong Kong confirms that rooftop PV systems could raise daytime temperatures in urban environments. The scientists explained that although their findings highlight important urban resilience considerations, they should not detract from the broader benefits of PV systems for energy sustainability and carbon reduction.

JinkoSolar led global PV module shipments in 2024, followed by JA Solar, Longi, Canadian Solar and Trina Solar, according to Wood Mackenzie. The research firm notes a growing shift toward full vertical integration among top manufacturers.

An international research team has observed a significant increase in series resistance in LECO-treated TOPCon solar cells after temperature and bias treatment. The scientists said they now need to conduct further investigations into its impact on cell efficiency, reliability, and bankability.

The research group led by Professor Martin Green has published Version 66 of the solar cell efficiency tables. There are 21 new results reported in the new version.