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http://hdl.handle.net/1942/32695
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DC Field | Value | Language |
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dc.contributor.author | VERSTRAETEN, Frederik | - |
dc.contributor.author | GIELEN, Sam | - |
dc.contributor.author | VERSTAPPEN, Pieter | - |
dc.contributor.author | RAYMAKERS, Jorne | - |
dc.contributor.author | PENXTEN, Huguette | - |
dc.contributor.author | LUTSEN, Laurence | - |
dc.contributor.author | VANDEWAL, Koen | - |
dc.contributor.author | MAES, Wouter | - |
dc.date.accessioned | 2020-11-25T12:36:01Z | - |
dc.date.available | 2020-11-25T12:36:01Z | - |
dc.date.issued | 2020 | - |
dc.date.submitted | 2020-11-05T10:26:09Z | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY C, 8 (29) , p. 10098 -10103 | - |
dc.identifier.uri | http://hdl.handle.net/1942/32695 | - |
dc.description.abstract | The majority of bulk heterojunction near-infrared organic photodetectors (NIR-OPDs) have an absorption window up to 1000 nm (1.2 eV) due to the scarcity of suitable NIR-absorbing electron donor polymers and the challenging energy alignment and/or blend miscibility with electron acceptor materials, strongly complicating to move beyond this wavelength range. Nonetheless, extension of the detectivity further into the NIR is important for applications such as bio-imaging, pulse oximetry and industrial sorting. Herein, we illustrate that [1,2,5]thiadiazolo[3,4-g]quinoxaline (TQ) is an excellent building block for the development of ultra-low bandgap copolymers to achieve tuneable NIR photodetection beyond 1000 nm. Three TQ monomers with different side chain patterns are synthesized and combined with carefully selected electron rich subunits to yield push-pull type copolymers with an optical gap ranging from 1.14 to 0.87 eV. The highest gap material affords the best OPD performance, with a peak specific detectivity of 3 x 10(11)Jones at 960 nm (at -2 V bias). The other polymers show <1 eV optical gaps and specific detectivities exceeding 10(10)Jones up to 1400 nm (at -2 V bias). These values are among the highest reported so far for NIR-OPDs in the wavelength range beyond 1000 nm. | - |
dc.description.sponsorship | The authors thank Drs Christina Kaiser (Swansea University) for her contribution to the frequency response and LDR measurements. F. V., S. G. and J. R. acknowledge the Research Foundation Flanders (FWO Vlaanderen) for granting them a PhD fellowship. P. V. is a postdoctoral fellow of the FWO Vlaanderen. K. V. and W. M. are grateful for project funding by the FWO (G0D0118N and G0B2718N). Hasselt University and IMOMEC are partners in the SBO project MIRIS (Monolithic Infrared Image Sensors), supported by VLAIO (Vlaams Agentschap Innoveren en Ondernemen). The authors thank Dr Geert Pirotte for his contribution to this project. | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.rights | The Royal Society of Chemistry 2020. | - |
dc.subject.other | Donor-Acceptor Polymers | - |
dc.subject.other | Organic Photodetectors | - |
dc.subject.other | High-Detectivity | - |
dc.subject.other | Performance | - |
dc.subject.other | Morphology | - |
dc.subject.other | Detectors | - |
dc.subject.other | Electron | - |
dc.title | Efficient and readily tuneable near-infrared photodetection up to 1500 nm enabled by thiadiazoloquinoxaline-based push–pull type conjugated polymers | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 10103 | - |
dc.identifier.issue | 29 | - |
dc.identifier.spage | 10098 | - |
dc.identifier.volume | 8 | - |
local.format.pages | 6 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | Maes, W (corresponding author), UHasselt Hasselt Univ, Inst Mat Res IMO, Agoralaan 1 Bldg D, B-3590 Diepenbeek, Belgium.; Maes, W (corresponding author), IMEC, Associated Lab IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. | - |
dc.description.notes | wouter.maes@uhasselt.be | - |
dc.description.other | Maes, W (corresponding author), UHasselt Hasselt Univ, Inst Mat Res IMO, Agoralaan 1 Bldg D, B-3590 Diepenbeek, Belgium ; IMEC, Associated Lab IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. wouter.maes@uhasselt.be | - |
local.publisher.place | THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.1039/d0tc01435d | - |
dc.identifier.isi | WOS:000554788100030 | - |
dc.contributor.orcid | Vandewal, Koen/0000-0001-5471-383X | - |
local.provider.type | wosris | - |
local.uhasselt.uhpub | yes | - |
local.description.affiliation | [Verstraeten, Frederik; Gielen, Sam; Verstappen, Pieter; Raymakers, Jorne; Penxten, Huguette; Vandewal, Koen; Maes, Wouter] UHasselt Hasselt Univ, Inst Mat Res IMO, Agoralaan 1 Bldg D, B-3590 Diepenbeek, Belgium. | - |
local.description.affiliation | [Verstraeten, Frederik; Gielen, Sam; Verstappen, Pieter; Raymakers, Jorne; Lutsen, Laurence; Vandewal, Koen; Maes, Wouter] IMEC, Associated Lab IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. | - |
item.contributor | VERSTRAETEN, Frederik | - |
item.contributor | GIELEN, Sam | - |
item.contributor | VERSTAPPEN, Pieter | - |
item.contributor | RAYMAKERS, Jorne | - |
item.contributor | PENXTEN, Huguette | - |
item.contributor | LUTSEN, Laurence | - |
item.contributor | VANDEWAL, Koen | - |
item.contributor | MAES, Wouter | - |
item.fullcitation | VERSTRAETEN, Frederik; GIELEN, Sam; VERSTAPPEN, Pieter; RAYMAKERS, Jorne; PENXTEN, Huguette; LUTSEN, Laurence; VANDEWAL, Koen & MAES, Wouter (2020) Efficient and readily tuneable near-infrared photodetection up to 1500 nm enabled by thiadiazoloquinoxaline-based push–pull type conjugated polymers. In: JOURNAL OF MATERIALS CHEMISTRY C, 8 (29) , p. 10098 -10103. | - |
item.accessRights | Open Access | - |
item.fulltext | With Fulltext | - |
item.validation | ecoom 2021 | - |
crisitem.journal.issn | 2050-7526 | - |
crisitem.journal.eissn | 2050-7534 | - |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Revised manuscript Verstraeten et al JMC C 2020.pdf | Peer-reviewed author version | 1.13 MB | Adobe PDF | View/Open |
d0tc01435d.pdf Restricted Access | Published version | 2.56 MB | Adobe PDF | View/Open Request a copy |
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