文献类型：期刊文献

英文题名：Anisotropic flexible transparent films from remaining wood microstructures for screen protection and AgNW conductive substrate

作者：Tang, Qiheng[1] Fang, Lu[2] Wang, YunFei[1] Zou, Miao[1] Guo, Wenjing[1]

第一作者：唐启恒

通信作者：Tang, QH[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, 1 Dongxiaofu, Beijing 100091, Peoples R China;[2]Nanjing Forestry Univ, Coll Furniture & Ind Design, 159 LongPan Rd, Nanjing 210037, Jiangsu, Peoples R China

年份：2018

卷号：10

期号：9

起止页码：4344-4353

外文期刊名：NANOSCALE

收录：;EI(收录号：20181004878417);Scopus(收录号：2-s2.0-85042848470);WOS:【SCI-EXPANDED(收录号:WOS:000426708500022)】；

基金：This research was supported by the Cooperation Project of Forestry Science and Technology from Zhejiang Province and the Chinese Academy of Forestry (Grant No. 2017SY14) and the Special Fund of Chinese Central Government for Basic Scientific Research Operation in Common Wealth Research Institutes (No. CAFYBB2018SZ014).

语种：英文

外文关键词：Anisotropy - Biomechanics - Cellulose films - Conductive films - Delignification - Flexible displays - Optical films - Optoelectronic devices - Silver nanowires - Substrates - Tensile strength - Ultrathin films - Wood

摘要：Flexible transparent conductive films or substrates prepared from plastics or cellulose are widely used in optoelectronic devices. However, all of these films or substrates are fabricated by complex and expensive methods, which consume much energy and time. In this work, we report for the first time a remarkably facile and effective approach for fabricating flexible transparent films directly from wood. The resulting films exhibit an array of exceptional optical and mechanical properties. The well-aligned cell structures in natural wood are maintained during delignification, leading to anisotropic films with high transparency (similar to 90% transmittance). These anisotropic films with well-aligned cell structures show mechanical tensile strengths higher than those of the original wood, and can be used as screen protection films for cellphones. Furthermore, ultrathin, highly transparent, and outstandingly conductive films have been prepared from such films and silver nanowires (AgNWs) using the Meyer technique. A conductive film with an optimal area density (341 mg m(-2)) of AgNWs showed outstanding synergistic properties, with a transmittance of 80% and a sheet resistance of 11 O sq(-1), equal to the conductivity of ITO. Of importance here is that the low-cost anisotropic transparent wood film shows promising potential for electronics applications in solar cells, flexible displays, and other products.