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

doi:10.1109/CLEOE-EQEC.2019.8872711

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 proceeding › Conference contribution › peer-review

Abstract

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 language	English
Title of host publication	2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728104690
DOIs	https://doi.org/10.1109/CLEOE-EQEC.2019.8872711
State	Published - Jun 2019
Externally published	Yes
Event	2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany Duration: 23 Jun 2019 → 27 Jun 2019

Publication series

Name	2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

Conference

Conference	2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
Country/Territory	Germany
City	Munich
Period	23/06/19 → 27/06/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/CLEOE-EQEC.2019.8872711

Cite this

Nguyen, X. T., Timmer, D., Rakita, Y., Cahen, D., De Sio, A., & Lienau, C. (2019). Ultrafast two-dimensional electronic spectroscopy of millimeter-sized halide perovskite single crystals. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 Article 8872711 (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CLEOE-EQEC.2019.8872711

Nguyen, X. Trung ; Timmer, Daniel ; Rakita, Yevgeny et al. / Ultrafast two-dimensional electronic spectroscopy of millimeter-sized halide perovskite single crystals. 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019).

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abstract = "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.",

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Nguyen, XT, Timmer, D, Rakita, Y, Cahen, D, De Sio, A & Lienau, C 2019, Ultrafast two-dimensional electronic spectroscopy of millimeter-sized halide perovskite single crystals. in 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019., 8872711, 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, Institute of Electrical and Electronics Engineers Inc., 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, Munich, Germany, 23/06/19. https://doi.org/10.1109/CLEOE-EQEC.2019.8872711

Ultrafast two-dimensional electronic spectroscopy of millimeter-sized halide perovskite single crystals. / Nguyen, X. Trung; Timmer, Daniel; Rakita, Yevgeny et al.
2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. 8872711 (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Nguyen XT, Timmer D, Rakita Y, Cahen D, De Sio A, Lienau C. Ultrafast two-dimensional electronic spectroscopy of millimeter-sized halide perovskite single crystals. In 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. 8872711. (2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019). doi: 10.1109/CLEOE-EQEC.2019.8872711

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

Abstract

Publication series

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Bibliographical note

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