Efficient Triplet-triplet Annihilation-based Upconversion in Vegetable Oils

被引：0

作者：

Shin, Sung Ju ^{[1
]}

Choe, Hyun Seok ^{[1
]}

Park, Eun-Kyoung ^{[1
]}

Kyu, Hyun ^{[1
]}

Han, Sangil ^{[2
]}

Kim, Jae Hyuk ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Chem & Environm Engn, Busan 46241, South Korea

[2] Changwon Natl Univ, Dept Chem Engn, Gyeongam 51140, South Korea

来源：

APPLIED CHEMISTRY FOR ENGINEERING | 2016年 / 27卷 / 06期

关键词：

upconversion; vegetable oils; anti-stokes emission; triplett-triplet annihilation;

D O I：

10.14478/ace.2016.1102

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We herein report efficient triplet-triplet annihilation upconversion (TTA-UC) achieved in various non-toxic and non-volatile vegetable oils as a UC media using platinum-octaethylporphyrin (PtOEP) and 9,10-diphenylanthracene (DPA) as a sensitizer and acceptor, respectively. Green-to-blue UC was readily achieved from PtOEP/DPA solution in vegetable oils with the quantum yield of 8% without any deoxygenation process. The UC efficiency was found to be significantly dependent on the contents of unsaturated hydrocarbon in vegetable oils and viscosity of the solution, as well. Though the Stern-volmer constant and quantum yield in vegetable oils were measured to be lower than those measured in the deaerated organic solvent, the quenching efficiency was still high enough to be 93%. In the sunflower oil, the UC threshold intensity (Ith) was approx. 100 mW/cm(2), which is far larger than the sunlight intensity, but we believe that the UC achieved in non-toxic and air-saturated media was still highly applicable to nontraditional visualization techniques such as bioimaging.

引用

页码：639 / 645

页数：7

共 15 条

[1]

Kim J.H., Kim J.H., Encapsulated triplet-triplet annihilation-based upconversion in the aqueous phase for sub-band-gap semiconductor photocatalysis, J. Am. Chem. Soc, 134, pp. 17478-17481, (2012)

[2]

Liu Q., Yin B.R., Yang T., Yang Y., Shen Z., Yao P., Li F., A general strategy for biocompatible, high-effective upconver sion nanocapsules based on triplet-triplet annihilation, J. Am. Chem. Soc, 135, pp. 5029-5037, (2013)

[3]

Schulze T.F., Czolk J., Cheng Y., Fuckel B., Macqueen R.W., Khoury T., Crossley M.J., Stannowski B., Lips K., Lemmer U., Colsmann A., Schmidt T.W., Efficiency enhancement of organic and thin-film silicon solar cells with photochemical upconversion, J. Phys. Chem. C, 116, pp. 22794-22801, (2012)

[4]

Schulze T.F., Schmidt T.W., Photochemical upconversion: Present status and prospects for its application to solar energy conversion, Energy Environ, Sci, 8, pp. 103-125, (2015)

[5]

Singh-Rachford T.N., Castellano F.N., Photon upconversion based on sensitized triplet-triplet annihilation, Coord. Chem. Rev, 254, pp. 2560-2573, (2010)

[6]

Islangulov R.R., Kozlov D.V., Castellano F.N., Low power upconversion using MLCT sensitizers, Chem. Commun, 30, pp. 3776-3778, (2005)

[7]

Zhao W., Castellano F.N., Upconverted emission from pyrene and di-tert-butylpyrene using Ir(Ppy)<sub>3</sub>as triplet sensitizer, J. Phys. Chem. A, 110, pp. 11440-11445, (2006)

[8]

Singh-Rachford T.N., Haefele A., Ziessel R., Castellano F.N., Boron dipyrromethene chromophores: Next generation triplet acceptors/annihilators for low power upconversion schemes, J. Am. Chem. Soc, 130, pp. 16164-16165, (2008)

[9]

Kim J.H., Deng F., Castellano F.N., Kim J.H., High efficiency low-power upconverting soft materials, Chem. Mater, 24, pp. 2250-2252, (2012)

[10]

Kim J.H., Kim J.H., Triple-emulsion microcapsules for highly efficient multispectral upconversion in the aqueous phase, ACS Photonics, 2, pp. 633-638, (2015)

← 1 2 →