Highly efficient photochemical upconversion in a quasi-solid organogel

Autor:	Miroslav Dvořák, Rowan W. MacQueen, Timothy W. Schmidt, Yuen Yap Cheng, Joshua R. Peterson, Natalie Stingelin, Neil D. Treat, Dane R. McCamey, Kabilan Sripathy
Rok vydání:	2015
Předmět:	Photovoltaic solar energy Range (particle radiation) Materials science Quenching (fluorescence) business.industry General Chemistry Photochemistry Photon upconversion Photovoltaics Materials Chemistry Photocatalysis Optoelectronics business Quasi-solid Phosphorescence
Zdroj:	Journal of Materials Chemistry C. 3:616-622
ISSN:	2050-7534 2050-7526
Popis:	Despite the promise of photochemical upconversion as a means to extend the light-harvesting capabilities of a range of photovoltaic solar energy conversion devices, it remains a challenge to create efficient, solid-state upconverting materials. Until now, a material has yet to be found which is as efficient as a liquid composition. Here, a gelated photochemical upconversion material is reported with a performance indistinguishable from an otherwise identical liquid composition. The sensitizer phosphorescence lifetime, Stern–Volmer quenching constants and upconversion performance (6% under one-sun illumination) were all found to be unchanged in a quasi-solid gelated sample when compared to the liquid sample. The result paves the way to a new family of efficient photochemical upconversion materials comprised of macroscopically solid, but microscopically liquid gel, for application in photovoltaics and photocatalytic water-splitting.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::24f8b7a6c9d12aa6d49baebb3f46f1bc https://doi.org/10.1039/c4tc02584a Zobrazit plný text záznamu