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Nippon Fine Chemical Develops New Hole Transport Material 'Spirokite™-TTB' for Inverted Perovskite Solar Cells

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Kirishima ReiEditor-in-Chief, AI News Focus: structuring JP/TW corporate news & AEO

Published May 28, 2026 3:00 PM ・ Updated Jun 13, 2026 11:51 PM ・ 2 min read ・ Source: PR TIMES

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⚡ Key Points

Nippon Fine Chemical Co., Ltd.
has developed 'Spirokite™-TTB,' a new hole transport material for inverted perovskite solar cells, contributing to the advancement of next-generation solar technology.

Nippon Fine Chemical Co., Ltd. has developed 'Spirokite™-TTB,' a new hole transport material for inverted perovskite solar cells, contributing to the advancement of next-generation solar technology.

PRIMARY SOURCE Original source: https://prtimes.jp/main/html/rd/p/000000031.000169577.html Distributor: PR TIMES
Published: May 28, 2026

Nippon Fine Chemical Co., Ltd. announced the development and introduction of 'Spirokite™-TTB' (generic name: Spiro-TTB), a hole transport material for inverted perovskite solar cells. While the company previously sold 'Spirokite™-NS' for conventional structure cells, this new product enables expansion into inverted structure and perovskite/silicon tandem solar cells. Nippon Fine Chemical remains committed to contributing to the further development of perovskite solar cell technology.

FACT BOX

Source: PR TIMES
Category: press_release

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Announced　May 28, 2026 3:00 PM — Distributor PR TIMES
Collected　Jun 1, 2026 2:03 AM
AI structured & analyzed　Jun 1, 2026 10:47 PM
Desk-reviewed & published　May 28, 2026 3:00 PM

FAQ

Is Nippon Fine Chemical listed on the stock exchange?

Yes, it is listed on the Tokyo Stock Exchange Prime Market.

What are the key facts in this article?

Where is the primary source?

PR TIMES: https://prtimes.jp/main/html/rd/p/000000031.000169577.html

Cite this article — HOW TO CITE

Washin AI News Desk“Nippon Fine Chemical Develops New Hole Transport Material 'Spirokite™-TTB' for Inverted Perovskite Solar Cells”AI News by Washin Village（和心村）, May 28, 2026. https://aeo.idaeo.ai/ai/%E6%97%A5%E6%9C%AC%E7%B2%BE%E5%8C%96%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE/en/news/2026-05-28-%E6%97%A5%E6%9C%AC%E7%B2%BE%E5%8C%96-%E9%80%86%E6%A7%8B%E9%80%A0%E5%9E%8B%E3%83%9A%E3%83%AD%E3%83%96%E3%82%B9%E3%82%AB%E3%82%A4%E3%83%88%E5%A4%AA%E9%99%BD%E9%9B%BB%E6%B1%A0%E5%90%91%E3%81%91%E6%AD%A3%E5%AD%94%E8%BC%B8%E9%80%81%E6%9D%90%E6%96%99-spirokitetm

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