Tandem | Perovskite-Info

Meyer Burger is considering legal options to enforce its rights after Oxford PV announces unilateral termination of the collaboration

Earlier this month, Oxford PV announced the completion of the build-out of its manufacturing site in Brandenburg an der Havel, Germany. Oxford PV concluded that announcement by saying that "With the achievement of this factory milestone, Oxford PV has terminated its exclusive relationship with Meyer Burger".

Meyer Burger Technology was informed of the termination of partnership (in place since 2019) through the press release (as well as a letter from Oxford Photovoltaics). In view of the unexpected announcement of termination by Oxford PV, Meyer Burger is reportedly considering legal options to enforce its rights.

Read the full story Posted: Jul 26, 2021

GCL Optoelectronic Material and SC-Solar join forces to develop tandem perovskite solar cells

GCL Optoelectronic Materials and SC-Solar have signed a strategic cooperation agreement to jointly develop and promote tandem perovskite solar cells.

Under the agreement, both companies will be working closely together to develop the equipment and production line for tandem perovskite cells. They will share resources and find ways to complement each other’s strengths with respect to process technology and fabrication equipment. GCL Optoelectronic Materials is a subsidiary of vertically integrated solar enterprise GCL. SC-Solar is a subsidiary of J.S. Machine, which develops packaging and manufacturing solutions for many industries.

Read the full story Posted: Jun 18, 2021

Researchers reach impressive efficiency of perovskite solar cells using a thin layer of gold

Scientists from Pennsylvania State University, Shaanxi Normal University, Hubei University and the US Army Combat Capabilities Development Command have designed a semi-transparent perovskite solar cell that reached 19.8%, and 28.3% in a tandem cell stacked on top of a silicon-heterojunction device. The device is based on a film of gold just a few atoms thick, grown using an innovative seeding method, which is both highly conductive and transparent.

The team investigated, in their new study, a new method to grow a very thin, continuous layer of gold onto a perovskite solar cell as the top electrode layer. Despite the fact that gold is a rare and expensive material, the group is convinced its approach offers an alternate, efficient route to fabricating perovskite and tandem solar cells.

Read the full story Posted: Jun 03, 2021

TCI starts offering new hole selective self-assembled monolayer forming agents to boost perovskite PV performance

The following is a sponsored post by TCI

Tokyo Chemical Industry Company Limited (TCI) is now offering new hole selective self-assembled monolayer (SAM) forming agents, 2PACz [C3663], MeO-2PACz [D5798] and Me-4PACz [M3359] for high performance perovskite solar cells and OPVs.

The new materials enable efficient, versatile and stable p-i-n perovskite solar cell devices. These materials are useful for tandem solar cells as they grant conformal coverage on rough textures. In fact, a perovskite solar cell that uses the SAM hole transport layer can realize more than 20% efficiency without using dopants or additives. Perovskite-Silicon tandem solar cells that use Me-4PACz as a hole contact material realized 29.15% efficiency. Costs are lowered thanks to extremely low material consumption, and the processing is very simple and scalable.

Read the full story Posted: Jun 01, 2021

Researchers present a new theory for light-induced halide segregation in mixed halide perovskites

Researchers at the Eindhoven University of Technology have developed a theory that may explain the origins of perovskite solar cells' thermal stability.

The research group's analysis was focused on five types of halide compounds combining both bromide and iodide. “This combination works particularly well because it allows for the ‘tuning’ of the bandgap, or the minimum amount of photon energy needed to generate electricity in the material,” they said, adding that this solution is ideal when perovskite PV devices are used in tandem solar cells.

Read the full story Posted: May 18, 2021