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Conference paperGonzalez-Carrero S, Kosco J, Fei T, et al., 2022,
Tracking the photogenerated charges on organic semiconductors nanoparticles photocatalyst
, Materials for Sustainable Development Conference (MAT-SUS), Publisher: FUNDACIO DE LA COMUNITAT VALENCIANA SCITO -
Journal articleCong S, Chen J, Wang L, et al., 2022,
Donor Functionalization Tuning the N-Type Performance of Donor-Acceptor Copolymers for Aqueous-Based Electrochemical Devices
, ADVANCED FUNCTIONAL MATERIALS, Vol: 32, ISSN: 1616-301X- Cite
- Citations: 54
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Journal articleKeene ST, Michaels W, Melianas A, et al., 2022,
Efficient Electronic Tunneling Governs Transport in Conducting Polymer-Insulator Blends
, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 144, Pages: 10368-10376, ISSN: 0002-7863- Author Web Link
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- Citations: 13
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Journal articleDai Y, Dai S, Li N, et al., 2022,
Stretchable Redox-Active Semiconducting Polymers for High-Performance Organic Electrochemical Transistors
, ADVANCED MATERIALS, Vol: 34, ISSN: 0935-9648- Cite
- Citations: 113
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Journal articleJacobs IE, Lin Y, Huang Y, et al., 2022,
High-Efficiency Ion-Exchange Doping of Conducting Polymers
, ADVANCED MATERIALS, Vol: 34, ISSN: 0935-9648- Cite
- Citations: 149
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Journal articleXie Z, Zhuge C, Zhao Y, et al., 2022,
All-Solid-State Vertical Three-Terminal N-Type Organic Synaptic Devices for Neuromorphic Computing
, ADVANCED FUNCTIONAL MATERIALS, Vol: 32, ISSN: 1616-301X- Cite
- Citations: 64
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Journal articleSchafer EA, Wu R, Meli D, et al., 2022,
Sources and Mechanism of Degradation in p-Type Thiophene-Based Organic Electrochemical Transistors
, ACS APPLIED ELECTRONIC MATERIALS, Vol: 4, Pages: 1391-1404- Cite
- Citations: 33
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Journal articleJacoutot P, Scaccabarozzi AD, Zhang T, et al., 2022,
Infrared organic photodetectors employing ultralow bandgap polymer and non-fullerene acceptors for biometric monitoring
, Small, Vol: 18, Pages: 1-10, ISSN: 1613-6810Recent efforts in the field of organic photodetectors (OPD) have been focused on extending broadband detection into the near-infrared (NIR) region. Here, two blends of an ultralow bandgap push–pull polymer TQ-T combined with state-of-the-art non-fullerene acceptors, IEICO-4F and Y6, are compared to obtain OPDs for sensing in the NIR beyond 1100 nm, which is the cut off for benchmark Si photodiodes. It is observed that the TQ-T:IEICO-4F device has a superior IR responsivity (0.03 AW-1 at 1200 nm and −2 V bias) and can detect infrared light up to 1800 nm, while the TQ-T:Y6 blend shows a lower responsivity of 0.01 AW-1. Device physics analyses are tied with spectroscopic and morphological studies to link the superior performance of TQ-T:IEICO-4F OPD to its faster charge separation as well as more favorable donor–acceptor domains mixing. In the polymer blend with Y6, the formation of large agglomerates that exceed the exciton diffusion length, which leads to high charge recombination, is observed. An application of these devices as biometric sensors for real-time heart rate monitoring via photoplethysmography, utilizing infrared light, is demonstrated.
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Journal articleLiao H, Chen J, Lan L, et al., 2022,
Efficient n-Type Small-Molecule Mixed Ion-Electron Conductors and Application in Hydrogen Peroxide Sensors
, ACS APPLIED MATERIALS & INTERFACES, Vol: 14, Pages: 16477-16486, ISSN: 1944-8244- Author Web Link
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- Citations: 11
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Journal articleKosco J, Gonzalez Carrero S, Howells CT, et al., 2022,
Generation of long-lived charges in organic semiconductor heterojunction nanoparticles for efficient photocatalytic hydrogen evolution
, Nature Energy, Vol: 7, Pages: 340-351, ISSN: 2058-7546Organic semiconductor photocatalysts for the production of solar fuels are attractive as they can be synthetically tuned to absorb visible light while simultaneously retaining suitable energy levels to drive a range of processes. However, a greater understanding of the photophysics that determines the function of organic semiconductor heterojunction nanoparticles is needed to optimize performance. Here, we show that such materials can intrinsically generate remarkably long-lived reactive charges, enabling them to efficiently drive sacrificial hydrogen evolution. Our optimized hetereojunction photocatalysts comprise the conjugated polymer PM6 matched with Y6 or PCBM electron acceptors, and achieve external quantum efficiencies of 1.0% to 5.0% at 400 to 900 nm and 8.7% to 2.6% at 400 to 700 nm, respectively. Employing transient and operando spectroscopies, we find that the heterojunction structure in these nanoparticles greatly enhances the generation of long-lived charges (millisecond to second timescale) even in the absence of electron/hole scavengers or Pt. Such long-lived reactive charges open potential applications in water-splitting Z-schemes and in driving kinetically slow and technologically desirable oxidations.
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Journal articleGladisch J, Oikonomou VK, Moser M, et al., 2022,
An Electroactive Filter with Tunable Porosity Based on Glycolated Polythiophene
, SMALL SCIENCE, Vol: 2, ISSN: 2688-4046- Author Web Link
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- Citations: 6
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Journal articleWang Y, Zeglio E, Wang L, et al., 2022,
Green Synthesis of Lactone-Based Conjugated Polymers for n-Type Organic Electrochemical Transistors
, ADVANCED FUNCTIONAL MATERIALS, Vol: 32, ISSN: 1616-301X- Cite
- Citations: 78
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Journal articleMarks A, Chen X, Wu R, et al., 2022,
Synthetic Nuances to Maximize n-Type Organic Electrochemical Transistor and Thermoelectric Performance in Fused Lactam Polymers
, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 144, Pages: 4642-4656, ISSN: 0002-7863- Cite
- Citations: 91
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Journal articleMoser M, Wang Y, Hidalgo TC, et al., 2022,
Propylene and butylene glycol: new alternatives to ethylene glycol in conjugated polymers for bioelectronic applications
, MATERIALS HORIZONS, Vol: 9, Pages: 973-980, ISSN: 2051-6347- Cite
- Citations: 37
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Journal articleKaruthedath S, Gorenflot J, Firdaus Y, et al., 2022,
Intrinsic efficiency limits in low-bandgap non-fullerene acceptor organic solar cells (vol 20, pg 378, 2021)
, NATURE MATERIALS, Vol: 21, Pages: 378-378, ISSN: 1476-1122- Cite
- Citations: 2
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