Ultrafast two-dimensional electronic spectroscopy of millimeter-sized halide perovskite single crystals

X. Trung Nguyen, Daniel Timmer, Yevgeny Rakita, David Cahen, Antonietta de Sio, Christoph Lienau

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Halide perovskites (HaPs) have rapidly grown as highly promising photovoltaic materials. Despite the impressive device efficiencies, however, the fundamental mechanisms governing their unusual optoelectronic properties are still unclear [1]. In particular, the nature of their elementary optical excitations, their dynamics and interactions on ultrafast timescales are currently debated. Due to the comparatively low exciton binding energy, typically < 50 meV[2], the near-bandgap absorption in HaPs is a mixture of excitons and free carrier transitions. This makes it challenging to distinguish the contributions of these two species to the nonlinear optical spectra in experiments, in particular at room temperature.

Original languageEnglish
Title of host publicationEuropean Quantum Electronics Conference, EQEC_2019
PublisherOptica Publishing Group (formerly OSA)
ISBN (Print)9781728104690
StatePublished - 2019
Externally publishedYes
EventEuropean Quantum Electronics Conference, EQEC_2019 - Munich, United Kingdom
Duration: 23 Jun 201927 Jun 2019

Publication series

NameOptics InfoBase Conference Papers
VolumePart F143-EQEC 2019
ISSN (Electronic)2162-2701


ConferenceEuropean Quantum Electronics Conference, EQEC_2019
Country/TerritoryUnited Kingdom

Bibliographical note

Publisher Copyright:
© 2019 IEEE


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