Resolving Donor–Acceptor Interfaces and Charge Carrier Energy Levels of Organic Semiconductors with Polar Side Chains
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DOI: 10.1002/adfm.202004799
Abstract: Organic semiconductors consisting of molecules bearing polar side chains have been proposed as potential candidates to overcome the limitations of organic photovoltaics owing to their enhanced dielectric constant. However, introducing such polar molecules in photovoltaic… read more here.
Keywords: organic semiconductors; side; side chains; polar side ... See more keywords
Ion‐Gating Engineering of Organic Semiconductors toward Multifunctional Devices
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DOI: 10.1002/adfm.202102149
Abstract: Ion‐gating engineering provides a new way to bridge electronics and ionics, and more importantly, bringing unprecedented opportunities for organic semiconductors (OSCs) based bioelectronics and solid‐sate physics. Compared with conventional‐dielectric gating, ion gating shows unique features… read more here.
Keywords: multifunctional devices; organic semiconductors; gating engineering; ion gating ... See more keywords
Electric-Field-Controlled Dopant Distribution in Organic Semiconductors.
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DOI: 10.1002/adma.201701466
Abstract: Stable electrical doping of organic semiconductors is fundamental for the functionality of high performance devices. It is known that dopants can be subjected to strong diffusion in certain organic semiconductors. This work studies the impact… read more here.
Keywords: field controlled; microscopy; organic semiconductors; controlled dopant ... See more keywords
The Energy Level Conundrum of Organic Semiconductors in Solar Cells
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DOI: 10.1002/adma.202202575
Abstract: The frontier molecular energy levels of organic semiconductors are decisive for their fundamental function and efficiency in optoelectronics. However, the precise determination of these energy levels and their variation when using different techniques makes it… read more here.
Keywords: energy levels; spectroscopy; solar cells; energy ... See more keywords
Establishing Self‐Dopant Design Principles from Structure–Function Relationships in Self‐n‐Doped Perylene Diimide Organic Semiconductors (Adv. Mater. 42/2022)
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DOI: 10.1002/adma.202204656
Abstract: Self-doping is a particular doping method that has been applied to a wide range of organic semiconductors. However, there is a lack of understanding regarding the relationship between dopant structure and function. We investigated a… read more here.
Keywords: structure function; self dopant; organic semiconductors; doped perylene ... See more keywords
Novel Organic Superbase Dopants for Ultraefficient N‐Doping of Organic Semiconductors (Adv. Mater. 22/2023)
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DOI: 10.1002/adma.202300084
Abstract: Doping is a powerful technique for engineering the electrical properties of organic semiconductors (OSCs), yet efficient n-doping of OSCs remains a central challenge. Herein, we report the discovery of two organic superbase dopants, namely P2-t-Bu… read more here.
Keywords: organic superbase; superbase dopants; dopants ultraefficient; organic semiconductors ... See more keywords
Lest we Forget - the Importance of Heteroatom Interactions in Heterocyclic Conjugated Systems, from Synthetic Metals to Organic Semiconductors.
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DOI: 10.1002/adma.202302259
Abstract: The field of synthetic metals was, and remains, highly influential for the development of organic semiconductor materials. Yet, with the passing of time and the rapid development of conjugated materials in recent years, the link… read more here.
Keywords: heteroatom interactions; metals organic; organic semiconductors; synthetic metals ... See more keywords
Organic Semiconductors: Zigzag‐Elongated Fused π‐Electronic Core: A Molecular Design Strategy to Maximize Charge‐Carrier Mobility (Adv. Sci. 1/2018)
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DOI: 10.1002/advs.201870005
Abstract: In article number 1700317, Toshihiro Okamoto, Hiroyuki Ishii, and co‐workers report chryseno[2,1‐b:8,7‐b′]dithiophene (ChDT) and its derivatives, which have zigzag‐elongated fused π‐cores and peculiar highest occupied molecular orbital (HOMO) configurations, as materials with conceptually new semiconducting… read more here.
Keywords: core; organic semiconductors; fused electronic; elongated fused ... See more keywords
Organic Semiconductors: Charge‐Transfer‐Controlled Growth of Organic Semiconductor Crystals on Graphene (Adv. Sci. 6/2020)
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DOI: 10.1002/advs.202070031
Abstract: In article number https://doi.org/10.1002/advs.201902315, Kilwon Cho and co‐workers investigate the growth of C60 thin films on graphene. The crystallinity of C60 thin film is significantly improved when it is grown on p‐doped graphene where electron… read more here.
Keywords: semiconductors charge; organic semiconductors; transfer controlled; transfer ... See more keywords
Revealing the Electrophilic‐Attack Doping Mechanism for Efficient and Universal p‐Doping of Organic Semiconductors
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DOI: 10.1002/advs.202203111
Abstract: Doping is of great importance to tailor the electrical properties of semiconductors. However, the present doping methodologies for organic semiconductors (OSCs) are either inefficient or can only apply to some OSCs conditionally, seriously limiting their… read more here.
Keywords: doping mechanism; revealing electrophilic; electrophilic attack; organic semiconductors ... See more keywords
High Performance Polarization‐Resolved Photodetectors Based on Intrinsically Stretchable Organic Semiconductors
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DOI: 10.1002/advs.202204727
Abstract: Polarization‐sensitive photodetectors based on anisotropic semiconductors sense both the intensity and polarization state information without extra optical components. Here, a self‐powered organic photodetector (OPD) composed of intrinsically stretchable polymer donor PNTB6‐Cl and non‐fullerene acceptor Y6… read more here.
Keywords: polarization; organic semiconductors; intrinsically stretchable; performance polarization ... See more keywords