Enhanced electrochromic performance on anodic nickel oxide inorganic
Enhanced electrochromic performance on anodic nickel oxide inorganic
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增强阳极氧化镍无机物的电致变色性能
DOI：
10.1016/j.jallcom.2019.153365
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发表时间：
2020
影响因子：
6.2
通讯作者：
Diao Xungang
中科院分区：
文献类型：
--
作者：
Wang Caiping;Dong Guobo;Zhao Yuyang;He Yingchun;Ding Yilin;Du Xinpan;Zhong Xiaolan;Wang Mei;Diao Xungang
氧化镍等阳极材料在锂离子电池、太阳能电池，尤其是电致变色器件（ECD）中发挥着非常重要的作用。而用于电致变色器件的氧化镍（NiOx）的光学调制和循环稳定性性能仍需要改进。这里，通过共溅射制备锂掺杂（LiNiOx）和锂铝共掺杂氧化镍（Al-LiNiOx）薄膜。与未掺杂的氧化镍薄膜相比，同时含有锂和铝的氧化镍薄膜的光学调制和循环稳定性显着提高。 LiNiOx薄膜显示出透射率对比度的改善，而漂白状态的透射率下降。 Al-LiNiOx薄膜不仅增加了光学调制，还提高了漂白态的透过率。此外，还制备了性能良好的ITO/WO3/LiNbO3/Al-LiNiOx/ITO无机全固态ECD。漂白状态下的ECD在550 nm处的透过率达到74.5%，透过率对比度可达44%，且ECD的稳定性良好。这些表明锂铝共掺杂可能是提高电致变色性能的好方法。
Anodic materials like nickel oxide play a very important role in lithium-ion battery, solar cells and especially electrochromic devices (ECDs). While the optical modulation and cycle stability performance of nickel oxide (NiOx) for electrochromic devices still require improvement. Here, lithium-doping (LiNiOx) and lithium-aluminum co-doping nickel oxide (Al-LiNiOx) thin films are prepared through co-sputtering. Compared with the un-doped nickel oxide films, the optical modulation and cycle stability of the nickel oxide film containing both lithium and aluminum were significantly improved. LiNiOxfilms show improvement in the transmittance contrast while the transmittance of bleached state decreases. Al-LiNiOxfilms not only increase optical modulation, but also improve the transmittance of bleached state. Furthermore, ITO/WO3/LiNbO3/Al-LiNiOx/ITO inorganic all-solid-state ECD with good performance was prepared. The transmittance of the ECD in the bleached state reaches 74.5% at 550 nm, the transmittance contrast could be 44%, and the stability of ECD is good. These indicate that lithium-aluminum co-doping could be a good way to improve electrochromic performance.