Themed collection Challenges and prospects in organic photonics and electronics
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List of participants
Faraday Discuss., 2024,250, 429-430
https://doi.org/10.1039/D4FD90013H
Poster list
Faraday Discuss., 2024,250, 427-428
https://doi.org/10.1039/D4FD90014F
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Spiers Memorial Lecture: Challenges and prospects in organic photonics and electronics
Bioelectronics are currently used in a huge variety of applications considering the ongoing revolution in personalised medicine. Bioelectronics are poised to make a significant impact on disease diagnosis and treatment.
Faraday Discuss., 2024,250, 9-42
https://doi.org/10.1039/D3FD00152K
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Concluding remarks: challenges and prospects in organic photonics and electronics
The research topics and discussions that emerged during the Faraday Discussion meeting 2023 on challenges and prospects in organic photonics and electronics are concisely summarized, including the author’s perspectives and suggestions, particularly on interdisciplinary issues.
Faraday Discuss., 2024,250, 417-426
https://doi.org/10.1039/D3FD00157A
Luminescence mechanism analysis of a TADF molecule showing peculiar thermal behavior
9-[1,4]Benzoxaborino[2,3,4-kl]phenoxaborine-7-yl-1,3,6,8-tetramethyl-9H-carbazole, a donor–acceptor linked TADF molecule with a very short delay lifetime of 750 ns, exhibits a peculiar thermal behavior similar to that of negative gap materials.
Faraday Discuss., 2024,250, 233-250
https://doi.org/10.1039/D3FD00151B
Excited-state dynamics of C3-symmetric heptazine-based thermally activated delayed-fluorescence emitters
The excited-state character and symmetry of four heptazine-based TADF materials with C3-symmetric ground states are investigated to explain differences in their photophysical properties and rates of reverse intersystem crossing.
Faraday Discuss., 2024,250, 181-191
https://doi.org/10.1039/D3FD00121K
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Photocatalytic CO2 reduction by topologically matched polymer–polymer heterojunction nanosheets
2D donor–acceptor polymer heterojunctions formed via templation are found to give materials with higher photocatalytic activity than the individual semiconductor components.
Faraday Discuss., 2024,250, 251-262
https://doi.org/10.1039/D3FD00143A
Single-crystalline oligomer-based conductors modeling the doped poly(3,4-ethylenedioxythiophene) family
Oligomer-based charge-transfer complexes display a diversified carrier-to-carrier Coulomb repulsion (Ueff) and intermolecular interactions (W), enabling flexible tuning of electrical conductivities.
Faraday Discuss., 2024,250, 348-360
https://doi.org/10.1039/D3FD00134B
An organic transistor for detecting the oxidation of an organic sulfur compound at a solid–liquid interface and its chemical sensing applications
An OFET device enables the simultaneous detection of the reversible and irreversible oxidation of an organic sulfur compound by H2O2 at a solid–liquid interface, which was applied to the monitoring of an enzymatic reaction in an aqueous solution.
Faraday Discuss., 2024,250, 60-73
https://doi.org/10.1039/D3FD00149K
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Singlet fission is incoherent in pristine orthorhombic single crystals of rubrene: no evidence of triplet-pair emission
Our results suggest that singlet fission occurs incoherently on a relatively slow (picosecond) timescale in rubrene orthorhombic single crystals, directly generating weakly-coupled triplets. We see no evidence of triplet-pair emission from 1(TT).
Faraday Discuss., 2024,250, 162-180
https://doi.org/10.1039/D3FD00150D
Green-light wavelength-selective organic solar cells for agrivoltaics: dependence of wavelength on photosynthetic rate
We report on the design and synthesis of new electron-accepting π-conjugated molecules containing cyclopentene-annelated thiophene with a spiro-substituted 2,7-bis(2-ethylhexyl)fluorene unit as a green-light wavelength-selective nonfullerene acceptor for use in agrivoltaics.
Faraday Discuss., 2024,250, 220-232
https://doi.org/10.1039/D3FD00141E
Effects of halogen atom substitution on luminescent radicals: a case study on tris(2,4,6-trichlorophenyl)methyl radical-carbazole dyads
A series of halogenated carbazole-TTM radical dyads are evaluated, and the absence of heavy atom effects was systematically studied.
Faraday Discuss., 2024,250, 192-201
https://doi.org/10.1039/D3FD00130J
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
The unexpected fast polymerization during the synthesis of a glycolated polythiophene
We have studied the influence of the content of the ethylene glycol side chain and its linkage on the formation of active Grignard monomer species upon Grignard metathesis in three thiophene derivatives.
Faraday Discuss., 2024,250, 74-82
https://doi.org/10.1039/D3FD00146F
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Controlling the thermoelectric properties of organo-metallic coordination polymers through backbone geometry
The thermoelectric properties of organometallic coordination polymers (OMCPs) are influenced by the geometry of their backbone, thus underscoring the intricate nature of the structural elements to consider when designing novel thermoelectric OMCPs.
Faraday Discuss., 2024,250, 377-389
https://doi.org/10.1039/D3FD00139C
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Giant Seebeck effect over 0.1 V K−1 – is this an intrinsic phenomenon in organic semiconductors?
The mechanism of the giant Seebeck effect over 0.1 V K−1 in pure organic semiconductors is discussed based on recent experimental findings.
Faraday Discuss., 2024,250, 361-376
https://doi.org/10.1039/D3FD00127J
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Optoelectronic conversion and polarization hysteresis in organic MISM and MISIM devices with DA-type single-component molecules
We fabricated MISM and MISIM devices using DA-type single-component molecules as the S layer and examined their photocurrent and polarization hysteresis.
Faraday Discuss., 2024,250, 96-109
https://doi.org/10.1039/D3FD00125C
Spectrally narrow band-edge photoluminescence from AgInS2-based core/shell quantum dots for electroluminescence applications
This study facilitates the synthesis of cadmium-free QDs, enhances their photoluminescence, and proposes a new LED device structure suitable for these QDs.
Faraday Discuss., 2024,250, 281-297
https://doi.org/10.1039/D3FD00142C
High-performance n-type organic thermoelectrics enabled by modulating cyano-functionalized polythiophene backbones
Via modulating cyano-functionalized polythiophene backbones, the new polymer CNg4T2-CNT2 delivered an impressive n-type power factor of 10.84 μW m−1 K−2 with a high conductivity of 13.2 S cm−1.
Faraday Discuss., 2024,250, 335-347
https://doi.org/10.1039/D3FD00135K
Diluted PEDOT:PSS for high-performance organic light-emitting devices with thermally activated delayed fluorescence emitters
A cost-effective method to address the issues of strong acidity and exciton quenching of PEDOT:PSS was developed by diluting it with deionized water. The solution-processed organic LEDs achieved almost doubled efficiencies with the modified PEDOT:PSS.
Faraday Discuss., 2024,250, 263-270
https://doi.org/10.1039/D3FD00136A
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Morphology, dynamic disorder, and charge transport in an indoloindole-based hole-transporting material from a multi-level theoretical approach
A multi-level theoretical protocol is developed to characterize the charge transport of a novel indoloindole-based hole-transporting material. The implications of molecular shape, dynamic disorder and amorphousness on the hole mobilities are discussed.
Faraday Discuss., 2024,250, 202-219
https://doi.org/10.1039/D3FD00144J
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Reducing undesired solubility of squarephaneic tetraimide for use as an organic battery electrode material
Unsubstituted squarephaneic tetraimide with reduced solubility due to H-bonding interactions is synthesised, characterised, and tested as a battery electrode material.
Faraday Discuss., 2024,250, 129-144
https://doi.org/10.1039/D3FD00145H
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
A phenazine-based conjugated microporous polymer as a high performing cathode for aluminium–organic batteries
A phenazine-based conjugated microporous polymer cathode provides high cycle stability (75% retention after 127 days), low capacity fade (0.19 mA h g−1 per day) and excellent rate capability (62 mA h g−1; 54% retention at 50C).
Faraday Discuss., 2024,250, 110-128
https://doi.org/10.1039/D3FD00132F
Amplified spontaneous emission from a liquid crystalline phase: anisotropic property and active modulation
Actively modulated amplified spontaneous emission was observed from a liquid crystalline blend C4alkyne-HBT/5CB where the concentration quenching of excited states was avoided by molecular design of excited state intermolecular proton transfer.
Faraday Discuss., 2024,250, 271-280
https://doi.org/10.1039/D3FD00122A
![Open Access](https://www.rsc-cdn.org/pubs-core/2022.0.147/content/NewImages/open-access-icon-orange.png)
Polymeric integration of structure-switching aptamers on transistors for histamine sensing
We explore alternative non-covalent surface chemistry to functionalize CNTs with aptamers. We harness the adhesive properties of poly-D-lysine to coat CNTs, then graft histamine-specific DNA aptamers electrostatically in close proximity to the CNT semiconducting channel.
Faraday Discuss., 2024,250, 43-59
https://doi.org/10.1039/D3FD00123G
Study of the electron-doping mechanism in single-walled carbon nanotubes using dimethylbenzimidazole
The presence of O2 was found to cause the reduction of O2 on the SWCNT surface in protic solvent, resulting in production of dimethylbenzimidazole cations and water through proton-coupled electron transfer from the n-doped SWCNT and ethanol.
Faraday Discuss., 2024,250, 390-399
https://doi.org/10.1039/D3FD00128H
Organic neuromorphics and bioelectronics: general discussion
Faraday Discuss., 2024,250, 83-95
https://doi.org/10.1039/D4FD90006E
Organic thermoelectrics: general discussion
Faraday Discuss., 2024,250, 400-416
https://doi.org/10.1039/D4FD90009J
Organic batteries: general discussion
Faraday Discuss., 2024,250, 145-161
https://doi.org/10.1039/D4FD90007C
Excitonic organic materials for photochemical and optoelectronic applications: general discussion
Faraday Discuss., 2024,250, 298-334
https://doi.org/10.1039/D4FD90008A
About this collection
We are delighted to share with you a selection of the papers associated with a Faraday Discussion on Challenges and prospects in organic photonics and electronics. More information about the related event may be found here: http://rsc.li/photonics-fd2023. Additional articles will be added to the collection as they are published. The final versions of all the articles presented and a record of the discussions will be published after the event.
Organic π-conjugated molecules, oligomers and polymers have changed our lifestyle; they play crucial and central roles in organic photonic and electronic applications, such as organic photovoltaics (OPVs), organic field-effect transistors (OFETs), and organic light-emitting diodes (OLEDs), which are everywhere. The progress in processing technologies and the performances of OPVs, OFETs, and OLEDs have been significantly enhanced over the last decade, and some are already commercialised in the form of displays, lighting, and solar cells. But these days, that’s not enough - one material, one role, one goal is not enough. These days scientists must not be smart but smarter, and for that our materials and technologies must go beyond current knowledge and have multiple-roles. This meeting will cover 4 main themes: Organic thermoelectrics, Excitonic organic materials for photochemical and optoelectronic applications, Organic batteries and Organic neuromorphics and bioelectoronics.
On behalf of the Scientific Committee, we hope you join us and participate in this exciting event, and that you enjoy these articles and the record of the discussion.