Revealing the reasons for the efficiency improvement of perovskite solar cells at extremely low temperatures of -100 ℃
Flexible perovskite solar cells have become excellent candidates for space and aerospace solar cells because of their high visible light absorption coefficient, high output power per unit mass, excellent flexibility and radiation tolerance. However, extreme radiation environments and extremely wide temperature variations have an unknown effect on the performance of battery devices.
The technical director of our company, together with Xiamen University and Tsinghua University, proposed a possible mechanism for promoting the efficiency improvement of perovskite cell devices at low temperature by associating the performance changes of perovskite solar cells based on formamidino and methylamine and the low temperature behavior of perovskite layers, which provides scientific basis and guiding significance for the subsequent practical application in this direction.
In this paper, the absorption curves of methylamine and formamidine perovskite at different temperatures were measured by UV-Vis absorption spectra and the band gap information calculated by the absorption curves. We observed the shift of the exciton peak accompanied by the temperature change process. At the same time, by analyzing the band gap information at different temperatures, we believe that the low temperature phase transition process occurred near 140K. Above 160K, the photoelectric conversion efficiency of the formamidine perovskite cell increases with the decrease of temperature. Foramidine perovskite solar cells are fully qualified for applications in extreme environments such as sky and polar regions.
As a leader in the industrialization of flexible perovskite solar cells, Dazheng Micro-Na is not only committed to the industrialization of flexible light perovskite batteries, but also pays attention to the performance change law of perovskite batteries under various extreme conditions, reveals the internal mechanism, and promotes the wide application of flexible light perovskite in various fields.
Related news
Recently, the 11th “Innovators China” Advanced Materials SME Innovation and Entrepreneurship Competition concluded successfully. Ma Chen, Chairman of Dazheng Micro‑Nano, participated with the project “R&D and Industrialization of a Flexible Perovskite Gigawatt‑Scale Production Line,” where he systematically presented to the panel of expert judges the company’s technological breakthroughs and progress in industrializing flexible perovskite solar cells.
The “2026 JouleTimes Perovskite Technology Innovation and Industrial Chain Ecosystem Summit,” hosted by JouleTimes, was held in Ningbo, Zhejiang, on July 2–3, 2026. Yu Wang, Executive Deputy General Manager of Dazheng Micro‑Nano, delivered a presentation titled “The Boundaries of Flexibility: The Real Challenges of Perovskite Photovoltaics and Their Large‑Scale Deployment.”
Following the successful approval of a provincial “Challenge-based Recruitment” project, Dazheng (Jiangsu) Micro-Nano Technology Co., Ltd. has once again joined forces with domestic universities to secure a key provincial-level special project under the China–Foreign Bilateral Innovation Cooperation Initiative for priority countries, marking another significant milestone in the company’s efforts to deepen industry–university–research collaboration and strengthen its core technology R&D.
DaZheng (Jiangsu) Micro Nano Technology Co., Ltd.
Tel.: 86-0511-85288876
Email: info@dazhengtop.com
Website: www.dazhengtop.com
Address: Building No. 1, Semiconductor Industrial Park, No. 298, Daijiamen Road, High-tech Zone, Zhenjiang City, Jiangsu Province, China
