• Transition metal phosphates were first developed for the electrochromic application.

• The obtained NiHPO₄·3H₂O film achieves an ultra-large optical modulation of 90.8%, and the electrochromic mechanism is systematically elucidated using in situ and ex situ techniques.

• A large-area electrochromic smart window with 100 cm² is constructed, which displays superior performances in regulating natural lighting and storing electrical charges.

中文翻译：

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用于超大光调制大面积智能窗的电致变色磷酸镍薄膜

• 过渡金属磷酸盐最初是为电致变色应用而开发的。

• 所得NiHPO ₄ ·3H ₂ O薄膜实现了90.8%的超大光学调制，并利用原位和异位技术系统地阐明了电致变色机理。

• 构建了100cm ²大面积电致变色智能窗，在调节自然光和存储电荷方面表现出优越的性能。