Modules & Upstream Manufacturing

Scientists in Spain and Colombia took a closer look at the degradation mechanisms affecting perovskite solar cells, and developed a new, high throughput method to characterize their performance in an outdoor setting. The group evaluated the method through outdoor testing on perovskite modules manufactured in a lab. it expects its findings to offer easier device characterization and better understanding of the degradation mechanisms affecting perovskite solar cells, both important factors in the technology’s development.

Iranian scientists have assessed a new active approach for solar module cooling based on water spraying. Water sprayed from different angles can reduce the operating temperature of PV modules, with limited water consumption. However, the team noted that they have yet to assess the economic viability of the system.

German scientists have designed a manufacturing process to reduce the thickness of the molybdenum diselenide interface layer in kesterite solar cells. They used two different configurations of silicon-oxynitride diffusion-barrier layers.

Western Australia-based solar glass developer ClearVue has commenced installation of its transparent solar PV glazing panels at what will be the world’s first clear solar glass greenhouse.

Huawei has strengthened its technology partnership with Chint, while TBEA is planning an IPO for its polysilicon unit Xinte Energy. Furthermore, glass manufacturers keep acting to overcome current bottleneck.

German scientists have fabricated an enhanced amorphous germanium PV cell that confines light in an ultra-thin absorber. It has the potential to combine PV with photosynthesis in new solar applications on bio-reactors, greenhouses, and agricultural land.

The German research institute has proposed a technique based on the surface structure of the wings of the morpho butterfly to produce colored BIPV panels for facades and rooftops. The process is claimed to make it possible to color the modules with an optical effect and not with color pigments, which reduce their efficiency.

Some 15% of the finance disbursed must fit the wider definition of being ‘sustainable’ and banks and other lenders have been warned penalties will be applied for non compliance.

International researchers have developed a silicon heterojunction PV cell with textured surfaces to accommodate the perovskite top cell. They optimized the rear transparent electrode to collect as much albedo as possible and achieved five different perovskite bandgaps by altering the iodide-to-bromide ratio in the perovskites, resulting in a higher open-circuit voltage.

In the first instance, the Düsseldorf Regional Court in Germany ruled in favor of Hanwha Q-Cells, but Longi Solar has appealed the judgment. There is also still a struggle for the validity of the patent between the photovoltaic companies at the European Patent Office. In addition to Longi Solar, REC is also reporting another partial success in the legal dispute with the South Korean photovoltaic manufacturer.