Charge transfer-mediated sensitization of lanthanide dopants by perovskite quantum dots

Woo Je Chang; Shawn Irgen-Gioro; Suyog Padgaonkar; Rafael López-Arteaga; Emily A. Weiss

doi:10.1117/12.2593678

5 August 2021 Charge transfer-mediated sensitization of lanthanide dopants by perovskite quantum dots

Woo Je Chang, Shawn Irgen-Gioro, Suyog Padgaonkar, Rafael López-Arteaga, Emily A. Weiss

Proceedings Volume 11799, Physical Chemistry of Semiconductor Materials and Interfaces XX; 117990O (2021) https://doi.org/10.1117/12.2593678
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

The electronically isolated f-orbitals of Ln3+ ions endow these species ultranarrow (atom-like) emission with a long lifetime, which are suitable for the optical generation and propagation of spin qubits, even after the coordination inside the semiconductor matrices. To overcome the low extinction coefficient of the Ln3+ ions, indirect sensitization of Ln3+ ions via energy transfer from the perovskite quantum dots (QDs) is performed through partial substitution of the perovskite matrix with Ln3+ ions. Here, we suggest a charge transfer type intermediate is involved in the energy transfer process, rather than utilizing conventional Forster or Dexter energy transfer. By comparing the static and dynamic process of the perovskite QDs doped with seven different Ln3+ species, we find that only Ln3+ species with low Ln2+ formation energy further advances the non-radiative recombination of the QDs’ delocalized charge carriers, which can potentially sensitize the Ln3+ excited states. The formation of the Ln2+ state naturally implies that energy transfer proceeds through sequential electron and hole transfer. The general mechanistic understanding of Ln3+ dopant sensitization opens the door for targeting multiple emission wavelengths by choosing the right combination of host matrices and Ln3+ species.

Conference Presentation

Citation Download Citation

Woo Je Chang, Shawn Irgen-Gioro, Suyog Padgaonkar, Rafael López-Arteaga, and Emily A. Weiss "Charge transfer-mediated sensitization of lanthanide dopants by perovskite quantum dots", Proc. SPIE 11799, Physical Chemistry of Semiconductor Materials and Interfaces XX, 117990O (5 August 2021); https://doi.org/10.1117/12.2593678

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Perovskite

Quantum dots

Energy transfer

Ions

Lanthanides

Matrices

Mass attenuation coefficient

Show All Keywords

Keywords/Phrases

Search In:

Publication Years