Contactless Detection of Giant Helicity-Dependent Photovoltage in Chiral 2D Perovskites.

Joanna Dehnel, Ido Zemer, Rawan Hirzalla, Ido Hadar, Igal Levine

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Article in Small (Weinheim an der Bergstrasse, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Joanna DehnelInstitute of Chemistry and the Center for Nanoscience and Nanotechnology, the Hebrew University of Jerusalem, Jerusalem, Israel.

Ido ZemerInstitute of Chemistry and the Center for Nanoscience and Nanotechnology, the Hebrew University of Jerusalem, Jerusalem, Israel.

Rawan HirzallaInstitute of Chemistry and the Center for Nanoscience and Nanotechnology, the Hebrew University of Jerusalem, Jerusalem, Israel.

Ido HadarInstitute of Chemistry and the Center for Nanoscience and Nanotechnology, the Hebrew University of Jerusalem, Jerusalem, Israel.

Igal LevineInstitute of Chemistry and the Center for Nanoscience and Nanotechnology, the Hebrew University of Jerusalem, Jerusalem, Israel.

Funding

Israel Science Foundation 1825/23Lady Davis Fellowship Trust

6 · The paper itself

Abstract

Chiral-induced spin selectivity (CISS) provides a direct route for spin filtering without magnetic fields, yet directly probing spin-dependent charge separation in low-dimensional hybrid perovskite systems remains elusive. Here, we systematically investigate helicity-dependent charge-carrier separation in chiral 2D perovskites using a novel contactless approach that employs a dynamic long-range organization strategy to enhance the chiroptical response. By employing contactless circularly polarized time-resolved surface photovoltage (CP-TRSPV), we directly monitor the interplay between chirality and charge separation dynamics across multiple timescales. While typical chiro-optical absorption in these materials is minimal, we observe a giant photovoltage anisotropy factor g

Indexed as

charge separationchiral 2D perovskitesspin‐selective photovoltagetransient surface photovoltage

Identifiers

PMID42568313

DOI10.1002/smll.74908

PMCPMC13614287

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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.