Photon upconverting bioplastics with high efficiency and in-air durability
Journal article, 2021
There is an urgent demand for substituting synthetic plastics to bioplastics for sustainable renewable energy production. Here, we report a simple one-step approach to create bioplastics with efficient and durable photon upconversion (UC) by encapsulating non-volatile chromophore solutions into collagen-based protein films. By just drying an aqueous solution of gelatin, surfactant, and UC chromophores (sensitizer and annihilator), liquid surfactant microdroplets containing the UC chromophores are spontaneously confined within the gelatin films. Thanks to the high fluidity of microdroplets and the good oxygen barrier ability of the collagen-based fiber matrices, a high absolute TTA-UC efficiency of 15.6% and low threshold excitation intensity of 14.0 mW cm−2are obtained even in air. The TTA-UC efficiency was retained up to 8.2% after 2 years of storage under ambient conditions, hence displaying the significant durability desired for practical applications.
Author
Pankaj Bharmoria
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Kyushu University
Shota Hisamitsu
Kyushu University
Yoichi Sasaki
Kyushu University
Tejwant Singh Kang
Guru Nanak Dev University India
Kyushu University
Masa Aki Morikawa
Kyushu University
Biplab Joarder
Kyushu University
King Abdullah University of Science and Technology (KAUST)
Kasper Moth-Poulsen
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Hakan Bildirir
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Anders Mårtensson
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Nobuhiro Yanai
Kyushu University
Japan Science and Technology Agency
Nobuo Kimizuka
Kyushu University
Journal of Materials Chemistry C
20507526 (ISSN) 20507534 (eISSN)
Vol. 9 35 11655-11661Subject Categories
Physical Chemistry
DOI
10.1039/d1tc00287b