Selective photochromism in a self-coated WO3/WO3-x homojunction: enhanced solar modulation efficiency, high luminous transmittance and fast self-bleaching rate
文献类型：期刊论文
| 作者 | Li, Ning; Cao, Xun; Chang, Tianci; Long, Shiwei; Jin, Ping |
| 刊名 | NANOTECHNOLOGY
 |
| 出版日期 | 2019-06-21 |
| 卷号 | 30期号:25 |
| 关键词 | tungsten oxide homojunction photochromic property the bleaching time oxalic acid |
| ISSN号 | 0957-4484 |
| DOI | 10.1088/1361-6528/ab0778 |
| 文献子类 | Article |
| 英文摘要 | Pursuing excellent photochromic (PC) properties is still a longstanding challenge for energy-efficient smart coatings. Herein, we have prepared a novel series of self-coated crystalline WO3-amorphous WO3-x homojunctions by a one-step hydrothermal process, in which oxalic acid was used as a capping agent to prevent polycondensation and the crystallization of [WO6]. The as-prepared nanopowders with tight interfaces have a large specific surface area and rich surface electrons, which leads to a dramatic PC property reaching up to Delta T-sol = 64.74% at the near-infrared (NIR) range of 1000-2600 nm with high luminous transmittance (T-lum = 94.6% in the virgin state and T-lum = 32.47% in the colored state). Meanwhile, the as-prepared crystalline WO3-amorphous WO3-x homojunction reveals fast reversible PC circulation; most particularly, the self-bleaching rate increases at least three times-the self-bleaching time is less than 8 h. Moreover, as the microstructure of the homojunction is tuned, the solar modulation range can be selective and tuned, so that the solar modulation efficiency is up to the best energy-saving state by controlling the main absorption according to the solar energy distribution. |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27040]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Li, Ning,Cao, Xun,Chang, Tianci,et al. Selective photochromism in a self-coated WO3/WO3-x homojunction: enhanced solar modulation efficiency, high luminous transmittance and fast self-bleaching rate[J]. NANOTECHNOLOGY,2019,30(25). |
| APA | Li, Ning,Cao, Xun,Chang, Tianci,Long, Shiwei,&Jin, Ping.(2019).Selective photochromism in a self-coated WO3/WO3-x homojunction: enhanced solar modulation efficiency, high luminous transmittance and fast self-bleaching rate.NANOTECHNOLOGY,30(25). |
| MLA | Li, Ning,et al."Selective photochromism in a self-coated WO3/WO3-x homojunction: enhanced solar modulation efficiency, high luminous transmittance and fast self-bleaching rate".NANOTECHNOLOGY 30.25(2019). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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