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ABSTRACT:
SUBMITTER: Alvarez SLG
PROVIDER: S-EPMC9189923 | biostudies-literature | 2022 Jun
REPOSITORIES: biostudies-literature
Alvarez Sol Laura Gutierrez SLG Riel Christina Basse CB Madani Mahtab M Abdellah Mohamed M Zhao Qian Q Zou Xianshao X Pullerits Tönu T Zheng Kaibo K
The journal of physical chemistry letters 20220527 22
The linear and nonlinear optical parameters and morphologic dependence of CsPbBr<sub>3</sub> nanocrystals (NCs) are crucial for device engineering. In particular, such information in asymmetric nanocrystals is still insufficient. We characterized the OPLA (σ<sup>1</sup>) and TPA cross sections (σ<sup>2</sup>) of a series CsPbBr<sub>3</sub> nanocrystals with various aspect ratios (AR) using femtosecond transient absorption spectroscopy (TAS). The σ<sup>1</sup> presents a linear volume dependence ...[more]