Excitonic Transitions Controlled by Voltage in a Single Self-assembled Quantum Dot

Autor:	Hongpei Wang, Jianglei Lu, Peng Qiu, Guanglong Wang
Rok vydání:	2013
Předmět:	Laser linewidth Materials science Absorption spectroscopy Condensed matter physics Quantum dot Electric field Measure (physics) Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Quantum tunnelling Voltage
Zdroj:	Advances in Mechanical and Electronic Engineering ISBN: 9783642315275
DOI:	10.1007/978-3-642-31528-2_9
Popis:	Recently, tunnelling dynamics of electrons controlled by an electric field have been the focus of quantum dot electronic applications. This paper report electron and hole tunnelling phenomena in a single self-assembled quantum dot as a function of the applied electric field. The absorption spectroscopy is used to measure excitonic transitions under conditions where optical recombination can not be observed due to the high, ionizing, electric field. It shows that the tunnelling mechanisms are strongly dependent on the applied electric field. Hence the lifetime limited linewidth can be controlled directly by a gate voltage.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::406d30d482769a3b58ae5125bebeaabf https://doi.org/10.1007/978-3-642-31528-2_9 Zobrazit plný text záznamu