Optimization schemes for efficient multiple exciton generation and extraction in colloidal quantum dots

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Multiple exciton generation (MEG) is a process in which more than one electron hole pair is generated per absorbed photon. It allows us to increase the efficiency of solar energy harvesting. Experimental studies have shown the multiple exciton generation yield of 1.2 in isolated colloidal quantum dots. However real photoelectric devices require the extraction of electron hole pairs to electric contacts. We provide a systematic study of the corresponding quantum coherent processes including extraction and injection and show that a proper design of extraction and injection rates enhances the yield significantly up to values around 1.6.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Fysik
Originalspråkengelska
Artikelnummer064703
TidskriftJournal of Chemical Physics
Volym145
Utgivningsnummer6
StatusPublished - 2016 aug 14
PublikationskategoriForskning
Peer review utfördJa

Nedladdningar

Ingen tillgänglig data