Toshiba - Page 2

Japan-based global electronics giant Toshiba recently announced a 15.1% power conversion efficiency for a 703cm² polymer film-based perovskite solar module. The result is referred to by the company as 'the highest efficiency yet reported for any large, polymer film-based perovskite photovoltaic module'.

The device was created using a one-step coating method that uses improved ink, film drying processes, and production equipment to form a uniform perovskite layer. The process is said to reduce the number of steps needed for deposition of the MAPbI₃ perovskite layer. The coating speed is said to reach six meters per minute on a 5x5 cm² module, which the company defined as a rate that meets requirements for mass production.

Japan-based global conglomerate Toshiba, announced that it would not take any new orders for the construction work of coal-fired thermal facilities. The company is planning to shift towards renewable energy solutions.

According to Toshiba, the company will support the infrastructure sector's transformation to achieve decarbonization goals. In addition to activities involving windmills and development of secondary batteries, Toshiba aims to commercialize its newly developed next-generation tandem and perovskite solar cells by 2025.

This article is an extract from The Perovskite Handbook, 2020 edition, and explains the current market status of Perovskites Solar Panels.

Solar Panels is the most prominent potential perovskite application, as synthetic perovskites are recognized as inexpensive base materials for high-efficiency commercial photovoltaics. Perovskite PVs are constantly undergoing research and improvement, going from just 2% in 2006 to over 23% today, and constantly improving. Experts forecast that the market for perovskite PV will reach $214 million in 2025.

Power efficiency is obviously a key metric for solar power technologies. In this article we'll explain how solar system efficiency is defined and the current power efficiency market status of PSCs.

New Energy and Industrial Technology Development Organization (NEDO) and Toshiba have announced the world's largest film-based perovskite photovoltaic module. The module is 703cm² (24.15 x 29.10cm) and achieves a power conversion efficiency (PCE) of 11.7%, overcoming the difficulties of increasing size and efficiency at the same time.

The module was developed using the meniscus printing technology owned by Toshiba and a newly developed printing process. Toshiba developed the printing process for a larger module by controlling the chemical reaction between PbI₂ and MAI on the substrate, using the ink composition as a mechanism. The company has also improved the uniformity of the layer thickness and increased the homogeneity of the crystal layer properties over a larger area, by controlling the process and adjusting the perovskite crystal growth conditions during the printing process. As a result, a PCE of 11.7% has been obtained on a module with an area of 703 cm², almost as large as 900 cm², the practical a scale.

Toshiba recently announced the fabrication of a film-based perovskite solar cell mini module with an impressive conversion efficiency of 10.5%. This efficiency rate was achieved in a 5 cm x 5 cm module and is stated by the company to be the highest yet recorded in a multi-cell mini module.

Toshiba achieved this by developing a fabrication process technology for film-based perovskite solar cells. The technology uses a film substrate and scribe process technology based on organic thin film solar cell module fabrication. Since this technology uses a flexible film substrate, it allows roll-to-roll fabrication that reduces costs. Toshiba will continue to refine the technology and expects to see further improvements in efficiency.