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Hierarchical SnO2@NiO core/shell nanoflake arrays as energy-saving electrochromic materials

Authors :
Xiuli Wang
Changdong Gu
Ding Zhou
Jiangping Tu
Hong Tang
Jia-heng Zhang
Lu Li
Source :
J. Mater. Chem. C. 2:10409-10417
Publication Year :
2014
Publisher :
Royal Society of Chemistry (RSC), 2014.

Abstract

Hierarchical SnO2@NiO core/shell nanoflake array on FTO-coated glass has been synthesized by a facile two-step solution method toward energy-saving electrochromism. Noticeably, the SnO2@NiO core/shell nanoflake array film shows a sustained memory effect, which is conducive to saving energy in commercial applications. The SnO2@NiO film exhibits an outstanding electrochromism, including large transmittance modulation (85.3%), fast switching speed (1.7 s and 2.4 s), high coloration efficiency (43.8 cm2 C−1), and excellent reversibility and cycling durability at 550 nm. The enhanced electrochromic performances can be attributed to the unique core/shell architecture, which provides large numbers of active sites for electrochemical reactions, fast ion and electron transfer channels and good strain accommodation ability.

Details

ISSN :
20507534 and 20507526
Volume :
2
Database :
OpenAIRE
Journal :
J. Mater. Chem. C
Accession number :
edsair.doi...........812cb5b28b2c558a54d10e60dcca31b2
Full Text :
https://doi.org/10.1039/c4tc02204a