Photochromic transparent wood for photo-switchable smart window applications

Wang, Lihong; Liu, Yanjun; Zhan, Xiyun; Luo, Dan; Sun, Xiaowei

2019-07-28

10.1039/c9tc02076d

Journal of Materials Chemistry C   影响因子和分区

2050-7526

2050-7534

Transparent wood with high optical transmittance, excellent thermal insulation and high toughness has attracted significant attention as an energy-saving building material. Many research efforts were dedicated to functional transparent wood, from luminescent to electrochromic transparent wood. However, photochromic transparent wood that is highly desirable and critical for smart window applications has been rarely studied. Herein, we experimentally demonstrate photochromic transparent wood with photo-switching of transmittance in the visible light region and color tuning properties. The photochromic transparent wood was obtained by infiltrating the lignin modified wood template with a mixture of photochromic material 3',3'-dimethyl-6-nitro-spiro[2H-1-benzopyran-2,2'-indoline]-1'-ethanol (DNSE) and pre-polymerized methyl methacrylate (MMA). This photochromic transparent wood exhibits a vibrant purple-to-colorless color change under the illumination of light. In addition, dichroic dye material doped photochromic woods were studied for providing more color change choices. The proposed photochromic transparent wood shows potential applications in mechanically robust, energy-efficient, photo-switchable, and colorful smart windows on a large scale.

SCI ; EI

英语

第一 ; 通讯

National Key Research and Development Program of China[2016YFB0401702]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied

WOS:000479006800020

ROYAL SOC CHEMISTRY

20193007233414

Acrylic monomers ; Chromogenics ; Color ; Colorimetry ; Energy efficiency ; Esters ; Intelligent buildings ; Light ; Photochromism ; Thermal insulation

Buildings and Towers:402 ; Heat Insulating Materials:413.2 ; Energy Conservation:525.2 ; Light/Optics:741.1 ; Organic Compounds:804.1 ; Wood and Wood Products:811.2 ; Optical Variables Measurements:941.4

Web of Science

Southern Univ Sci & Technol, Dept Elect & Elect Engn, Xueyuan Rd 1088, Shenzhen 518055, Guangdong, Peoples R China

Wang, Lihong,Liu, Yanjun,Zhan, Xiyun,et al. Photochromic transparent wood for photo-switchable smart window applications[J]. Journal of Materials Chemistry C,2019,7(28):8649-8654.

Wang, Lihong,Liu, Yanjun,Zhan, Xiyun,Luo, Dan,&Sun, Xiaowei.(2019).Photochromic transparent wood for photo-switchable smart window applications.Journal of Materials Chemistry C,7(28),8649-8654.

Wang, Lihong,et al."Photochromic transparent wood for photo-switchable smart window applications".Journal of Materials Chemistry C 7.28(2019):8649-8654.