Article last updated on: Jan 08, 2018

Swansea researchers supersize perovskite solar technology

Swansea University researchers have declared a perovskite solar module the size of an A4 sheet of paper, (nearly six times bigger than 10x10 cm2 modules of that type reported before), developed by using simple and low-cost printing techniques. The accomplishment shows that the technology works at a larger scale, not just in the lab, which is crucial for commercial use.

Swansea researchers supersize perovskite solar technology image

The team works for the SPECIFIC Innovation and Knowledge Center led by Swansea University. The researchers used an existing type of cell, a Carbon Perovskite Solar Cell (C-PSC), made of different layers - titania, zirconia and carbon on top - which are all printable. Though their efficiency is lower than other perovskite cell types, C-PSCs do not degrade as quickly, which has been established through 1 year of stable operation under illumination.

Penn State team gains new insight into how halide perovskite materials enable the efficient conversion of sunlight into electricity

Researchers at Penn State have gained new insight into how halide perovskite materials enable the efficient conversion of sunlight into electricity.

Penn State team gains new insight into how halide perovskite materials enable the efficient conversion of sunlight into electricity image

Scientists state that halide perovskites tend to have a unique tolerance for imperfections in their structures, which allows them to efficiently convert sunlight into electricity when other materials with similar imperfections do not. What makes these materials so tolerant of imperfections, however, was unknown prior to this study. The researchers used ultrafast infrared imaging technology to investigate how the structure and composition of these materials influence their ability to convert sunlight into electricity.

New method to fabricate low-cost high-efficiency perovskite solar cells may open the door to commercialization

Researchers at the Energy Materials and Surface Sciences Unit at the Okinawa Institute of Science and Technology Graduate University (OIST) have designed a new method to fabricate low-cost high-efficiency solar cells. Prof. Yabing Qi and his team from OIST, in collaboration with Prof. Shengzhong Liu from Shaanxi Normal University, China, developed the cells using perovskite materials.

In what Prof. Qi defines as "the golden triangle," solar cell technologies need to fulfill three conditions to be worth commercializing: their conversion rate of sunlight into electricity must be high, they must be inexpensive to produce, and they must have a long lifespan. Today, most commercial solar cells are made from crystalline silicon, which has a relatively high efficiency of around 22%. Though silicon, the raw material for these solar cells, is abundant, processing it tends to be complex and shoots up the manufacturing costs, making the finished product expensive.

Chinese team fabricates efficient PSCs with a titanium cathode layer

Researchers from the Chinese Academy of Sciences have designed perovskite solar cells with power conversion efficiency of 18.1% by adding Titanium (Ti) cathode layer.

Two different device configurations including n-i-p and p-i-n have been adopted for fabricating the PSCs. As organic electron transport layers (ETLs), fullerene and its derivatives (C60 and PCBM) play an important role in efficient PSCs with p-i-n structure (ITO/Hole transport layers/perovskite/ETLs/Cathode). However, the cathode metal atoms diffuse through the organic ETLs to the perovskite layer, causing degradation of PSCs. Also, the instability and high-cost of organic ETLs were limiting factors for the commercialization of PSCs. Considering these problems, the research team led by Dr. LI Xinhua, developed the ultra-thin Ti cathode interlayer to replace organic ETLs for fabricating efficient and low-cost PSCs.

ESPRC announces new partnership programs with a focus on high-efficiency perovskite solar cells

The Engineering and Physical Sciences Research Council (EPSRC) has announced seven new Prosperity Partnership projects that will build links between the UK’s research base and leading industry partners. The new projects will focus on four of the Industrial Strategy Grand Challenges (ISCF) , involve nineteen industry partners and ten universities, and will fund 50 studentships.

Prosperity Partnerships are EPSRC’s flagship approach to co-investing with business in long-term, use-inspired, basic research. They are five-year, multi-million pound research collaborations on topics of national and global importance which have been co-created by leading UK universities and businesses with a strong research presence in the UK.

NIPHO 2019 - Israel - Perovskite solar cells, photonics and optoelectronicsNIPHO 2019 - Israel - Perovskite solar cells, photonics and optoelectronics