Studies on transmittance modulation and ions transfer kinetic based on capacitive-controlled 2D V2O5 inverse opal film for electrochromic energy storage application

Zhao Lili; Kuang Junwei; Zhuang WeifengChao JieLiao WenboFu XiaoboLi ChaoYe LingyunLiu Hailu

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Studies on transmittance modulation and ions transfer kinetic based on capacitive-controlled 2D V2O5 inverse opal film for electrochromic energy storage application

机译：Studies on transmittance modulation and ions transfer kinetic based on capacitive-controlled 2D V2O5 inverse opal film for electrochromic energy storage application

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Two-dimensional vanadium pentoxide inverse opal (2D V2O5 IO) architecture was fabricated by polystyrene (PS) sphere template assisted electrodeposition process. In comparison to the un-templated V2O5 film, the 2D V2O5 IO film exhibited a highly ordered hexagonal close-packed bowel-like array, as well as noticeable electrochromism, such as transmittance modulation up to 42.6% at 800 nm, high coloration efficiency (28.6 cm(2) center dot C-1), fast ions transfer kinetic (t (b) = 7.2 s, t (c) = 2.5 s). These improvements of electrochromic performance were attributed to the ordered morphology with larger surface areas, which considerably shortened the ions diffusion paths and accelerated ions migration. An electrochromic energy storage device assembled from the 2D V2O5 IO film with simultaneous electrochromic and pseudocapacitive performance could not only show transmittance modulation accompanied by multicolor variations but also powered an LCD screen and an LED bulb, demonstrating a promising potential for practical applications.

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来源
《Nanotechnology》 |2022年第5期|共13页
作者
Zhao Lili; Kuang Junwei; Zhuang WeifengChao JieLiao WenboFu XiaoboLi ChaoYe LingyunLiu Hailu;
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作者单位

Dongguan Univ Technol;

Guangdong Acad Sci;

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正文语种英语
中图分类特种结构材料;
关键词
2D V2O5 IO film; electrochromic; pseudocapacitive; ions transfer kinetic; VANADIUM-OXIDE; DOPED V2O5; PERFORMANCE; FABRICATION; TEMPERATURE; DIFFUSION; PENTOXIDE; NANORODS; DEVICES;

Studies on transmittance modulation and ions transfer kinetic based on capacitive-controlled 2D V2O5 inverse opal film for electrochromic energy storage application

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