CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 13139 > Article
Presentation
3 October 2024 Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites
Zhanybek Alpichshev, Yujing Wei, Artem Volosniev, Dusan Lorenc, Ayan Zhumekenov, Osman Bakr, Mikhail Lemeshko
Author Affiliations +
Proceedings Volume 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII; 131390K (2024) https://doi.org/10.1117/12.3027198
Event: Optical Engineering + Applications, 2024, San Diego, California, United States
Abstract
A rotating organic cation and a dynamically disordered soft inorganic cage are the hallmark features of organic-inorganic lead-halide perovskites. Understanding the interplay between these two subsystems is a challenging problem, but it is this coupling that is widely conjectured to be responsible for the unique behavior of photocarriers in these materials. In this work, we use the fact that the polarizability of the organic cation strongly depends on the ambient electrostatic environment to put the molecule forward as a sensitive probe of the local crystal fields inside the lattice cell. We measure the average polarizability of the C/N–H bond stretching mode by means of infrared spectroscopy, which allows us to deduce the character of the motion of the cation molecule, find the magnitude of the local crystal field, and place an estimate on the strength of the hydrogen bond between the hydrogen and halide atoms. Our results pave the way for understanding electric fields in lead-halide perovskites using infrared bond spectroscopy.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Zhanybek Alpichshev, Yujing Wei, Artem Volosniev, Dusan Lorenc, Ayan Zhumekenov, Osman Bakr, and Mikhail Lemeshko "Bond polarizability as a probe of local crystal fields in hybrid lead-halide perovskites", Proc. SPIE 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII, 131390K (3 October 2024); https://doi.org/10.1117/12.3027198
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
Advertisement
Advertisement
KEYWORDS
Perovskite
Crystals
Polarizability
Crystallography
Molecules
Electric fields
Infrared spectroscopy
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top