Time-resolved and Temperature-dependent Broadband Emission of Plasmon-coupled Quantum Dots

Autor:	Bagher Tabibi, Zygmunt Gryczynski, Willliam Y. Yu, Felix Jaetae Seo, Ignacy Gryczynski, Andrew Wang, Raul Chib, Sangram Raut, Quinton Rice
Rok vydání:	2020
Předmět:	Physics Condensed Matter::Materials Science Condensed Matter::Other business.industry Quantum dot Broadband Physics::Optics Optoelectronics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect business Plasmon
Zdroj:	Journal of Materials and Applications. 9:99-106
ISSN:	2051-7750 2051-7742
DOI:	10.32732/jma.2020.9.2.99
Popis:	The broadband photoluminescence (PL) emissions from CdSe QDs and plasmon-coupled QDs were characterized with time-resolved and temperature-dependent spectroscopy for the application of solid-state white light. The origin of broad spectral emission includes the transitions from bandedge and surface-trapped states. The emission intensity enhancement of plasmon-coupled QDs with respect to that of bare QDs is attributable to the reduction of nonradiative decay and the local field enhancement with plasmon-exciton coupling through the Coulomb interaction. The temperature-dependent and time-resolved PL spectroscopy revealed the existence of selective contribution strength of both the local field enhancement and the reduction of nonradiative decay with plasmon-exciton coupling at different spectral regions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8e22288df7f8e7f2279fa384267049a9 https://doi.org/10.32732/jma.2020.9.2.99 Zobrazit plný text záznamu