ReviewNano letters2026
Revisiting the Optical Response of Two-Dimensional Perovskites: Beyond Excitons.
Review in Nano letters, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- A Visible-Frequency Excitonic Reststrahlen Band in (PEA)2PbI4 Slabs.Nano letters · 2026Article
Corrections and comments
- Erratum issued
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Two-dimensional (2D) Ruddlesden-Popper metal halide perovskites exhibit an unusually rich optical response, characterized by multiple sidebands, broad quasi-plateaus, and pronounced thickness-dependent spectral features. In this Review, we reassess their optical properties by examining the interplay between electronic structure, exciton fine structure, exciton-phonon coupling, and photonic effects. We show that the exceptionally large excitonic oscillator strength and high refractive index naturally give rise to excitonic stop bands and interference effects that can dominate reflection, transmission, and absorption spectra, even in nominally free-standing crystals. We further discuss the complexity of the photoluminescence response, including evidence for exciton-polaron formation, self-trapping, and defect-assisted recombination. By placing electronic, vibrational, and photonic effects on equal footing, this Review provides a unified framework for interpreting optical spectra in 2D perovskites.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.