Slow cooling and highly efficient extraction of hot carriers in colloidal perovskite nanocrystals

Mingjie Li; Saikat Bhaumik; Teck Wee Goh; Muduli Subas Kumar; Natalia Yantara; Michael Grätzel; Subodh Mhaisalkar; Nripan Mathews; Tze Chien Sum

doi:10.1038/ncomms14350

Nature Communications (Feb 2017)

Slow cooling and highly efficient extraction of hot carriers in colloidal perovskite nanocrystals

Mingjie Li,
Saikat Bhaumik,
Teck Wee Goh,
Muduli Subas Kumar,
Natalia Yantara,
Michael Grätzel,
Subodh Mhaisalkar,
Nripan Mathews,
Tze Chien Sum

Affiliations

Mingjie Li: Department of Physics and Applied Phyics, School of Physical and Mathematical Sciences, Nanyang Technological University
Saikat Bhaumik: Energy Research Institute @ NTU (ERI@N)
Teck Wee Goh: Department of Physics and Applied Phyics, School of Physical and Mathematical Sciences, Nanyang Technological University
Muduli Subas Kumar: Energy Research Institute @ NTU (ERI@N)
Natalia Yantara: Energy Research Institute @ NTU (ERI@N)
Michael Grätzel: Energy Research Institute @ NTU (ERI@N)
Subodh Mhaisalkar: Energy Research Institute @ NTU (ERI@N)
Nripan Mathews: Energy Research Institute @ NTU (ERI@N)
Tze Chien Sum: Department of Physics and Applied Phyics, School of Physical and Mathematical Sciences, Nanyang Technological University

DOI: https://doi.org/10.1038/ncomms14350
Journal volume & issue: Vol. 8, no. 1
pp. 1 – 10

Abstract

Read online

Harvesting excess energy from above-band gap photons could lead to solar cells which exceed conventional efficiency limits. Liet al., study hot carrier cooling in hybrid perovskite materials with reduced dimensionality using transient absorption spectroscopy and demonstrate efficient hot-electron extraction in such systems.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

About the journal