Evidence map›Paper›PMID 41588911›Full record

ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2026

Alkylthienyl Side Groups in Conjugated Polymers Enable Localization of π Electron Density and Facilitate Efficient Hole Transfer.

Hristo Ivov Gonev, Daniel G Congrave, Junjun Guo, Jose Marin-Beloqui, Max Allen, David Bacon, Ankita Kumari, Mohammad Saeed Shadabroo, He Zhu, Dibyajyoti Ghosh and 4 more

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Article in Advanced science (Weinheim, Baden-Wurttemberg, 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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0citing papers in PubMed
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1 · What the graph read from it

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.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Hristo Ivov GonevDepartment of Chemistry, University College London, London, United Kingdom.
Daniel G CongraveDepartment of Chemistry, University of Cambridge, Cambridge, United Kingdom.
Junjun GuoDepartment of Chemistry, University College London, London, United Kingdom.
Jose Marin-BeloquiDepartment of Chemistry, University College London, London, United Kingdom.
Max AllenSchool of Mathematics and Physical Sciences, University of Sheffield, Sheffield, United Kingdom.
David BaconDepartment of Chemistry, University College London, London, United Kingdom.
Ankita KumariDepartment of Materials Science and Engineering and Department of Chemistry, Indian Institute of Technology, New Delhi, India.
Mohammad Saeed ShadabrooOptoelectronics of Disordered Semiconductors, Institute of Physics and Astronomy, University of Potsdam, Potsdam-Golm, Germany.
He ZhuDepartment of Chemistry, University of Cambridge, Cambridge, United Kingdom.
Dibyajyoti GhoshDepartment of Materials Science and Engineering and Department of Chemistry, Indian Institute of Technology, New Delhi, India.
Rachel C KilbrideDepartment of Physics, University of Warwick, Coventry, United Kingdom.
Safa ShoaeeOptoelectronics of Disordered Semiconductors, Institute of Physics and Astronomy, University of Potsdam, Potsdam-Golm, Germany.
Hugo BronsteinDepartment of Chemistry, University of Cambridge, Cambridge, United Kingdom.
Tracey M ClarkeDepartment of Chemistry, University College London, London, United Kingdom.ORCID https://orcid.org/0000-0003-4943-0645

Funding

Engineering and Physical Sciences Research Council EP/Y031962/1UCL-IITD Global Engagement Fund
6 · The paper itself

Abstract

Recent advances in molecular design have seen peripheral alkoxy groups replaced with alkylthienyl substituents in conjugated polymers for high-performing organic photovoltaics. However, little is known about the mechanistic origins behind this improvement in performance. In this work, transient absorption spectroscopy is used in conjunction with resonance Raman spectroscopy to shed light on this question. Alkoxy-substituted polymer PBDB is compared with alkylthienyl-substituted PBDB-T in blends with two different acceptors. Larger charge photogeneration yields are observed for PBDB-T:ITIC-Th compared to the PBDB:ITIC-Th blend due to more efficient hole transfer. However, an active triplet formation mechanism via charge recombination leaves the two blends with similar polaron populations on longer timescales. Importantly, resonance Raman spectroscopy demonstrates that the alkylthienyl groups in PBDB-T enable a stronger coupling of the S

Indexed as

non‐fullerene acceptorsorganic photovoltaicsspectroscopytriplet state

Identifiers

PMID41588911
PMCPMC13045324

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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.