Bulletin of the American Physical Society
2018 Annual Meeting of the APS Mid-Atlantic Section
Volume 63, Number 20
Friday–Sunday, November 9–11, 2018; College Park, Maryland
Session B01: Poster Session (Day 1)
8:00 PM,
Friday, November 9, 2018
Edward St. John
Room: Lounge
Chair: Wendell T. Hill, III, University of Maryland, College Park
Abstract ID: BAPS.2018.MAS.B01.39
Abstract: B01.00039 : Characterizing the Nonlinear Optical Properties of CsPbBr3 Nanocrystals Using Two-Beam Action Spectroscopy and Nonlinear Fluorescence Excitation
Presenter:
Renee A Stover
(University of Maryland, College Park, University of Maryland, College Park)
Authors:
Renee A Stover
(University of Maryland, College Park, University of Maryland, College Park)
Nikolaos Liaros
(University of Maryland, College Park)
Xiuquan Zhou
(University of Maryland, College Park)
Efrain E Rodriguez
(University of Maryland, College Park)
John T Fourkas
(University of Maryland, College Park)
Halide perovskites have gained considerable attention in recent years due to their potential as easily processable and efficient photovoltaic materials. These materials also exhibit efficient multiphoton absorption (MPA). However, the characterization of MPA in halide perovskites has led to many conflicting reports. Here we apply a technique that we recently developed, two-beam constant emission intensity (2-BCEIn) spectroscopy, to the study of MPA-generated emission in CsPbBr3nanocrystals. 2-BCEIn allows for the measurement of the order(s) of nonlinear absorption without requiring high dynamics range, allowing us to elucidate the photophysics of multiphoton excitation in this system. We also demonstrate that this material undergoes efficient MPA even with continuous-wave light at 800 nm.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAS.B01.39
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