Living diatoms integrate polysaccharide-Eu3+ complex for UV downconversion

Journal of Materials Research and Technology

卷:19

Olle Inganäs¹  Zaixin Long¹  Tonghui Li¹  Wenfei Shen¹  Yao Wang²  Yanying Zhang²  Jianguo Tang²  Lili Li²  Shuxin Li² 

[1] Tech. Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, PR China;

[2] Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. &

关键词: Living diatoms;    Eu3+-complex-polysaccharide aggregates (EIPA);    UV-protection;    Downconversion;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this work, living diatoms (LDT) were fed Eu3+-complex-polysaccharide aggregates (EIPA), and the living diatoms integrated-EIPAs (LDT-E) in a completely new UV downconversion biophotonic material. The EIPAs were embedded inside siliceous cell walls of living diatoms. When dried, these diatoms (LDT-Es) are luminescent at 612 nm, due to the Eu3+-complex. As UV-downconversion material, LDT-E absorbs UV light in the band of 250–400 nm and converts into useful visible light, thus contributing to UV-protection and potentially to photocurrent generation in photovoltaic devices. This downconversion material from living diatom retains the porous characteristics of the diatom siliceous cells, as well as the diatom organic components. Most important is the absence of a chemical process to generate this biomaterial from natural living diatoms, in order to obtain UV-protection and downconversion.

【 授权许可】

Unknown