Rigorous Determination of Dipole Orientation in Organic Thin Films Using Angle-Dependent Photoluminescence

Yeonghoon Jin, Hyung Suk Kim, Donggyun Lee, Chihaya Adachi, Seunghyup Yoo, and Kyoungsik Yu

The Journal of Physical Chemistry C 2024 128 (4), 1755-1761

https://doi.org/10.1021/acs.jpcc.3c06330

This study introduces a rigorous analysis comparing distributed and concentrated dipole models in organic thin films using angle-dependent photoluminescence, highlighting inaccuracies in TDM orientation assumptions for thick emitter layers. It emphasizes considering the spatial distribution of TDMs, especially as film thickness increases, for precise OLED optical design.

How Phelos was used

Phelos was utilized for optical characterization via angle-dependent photoluminescence spectroscopy, aligning experimental setups and validating the necessity of considering distributed dipole models for accurate TDM orientation analysis in thick films.

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Molecular Engineering of Azahomofullerene-based Electron Transporting Materials for Efficient and Stable Perovskite Solar Cells