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Conducting-Polymer Bolometers for Low-Cost IR-Detection Systems
Linköpings universitet, Institutionen för teknik och naturvetenskap, Laboratoriet för organisk elektronik. Linköpings universitet, Tekniska fakulteten.
Univ Kentucky, KY 40506 USA.
Univ Kentucky, KY 40506 USA.
Linköpings universitet, Institutionen för teknik och naturvetenskap, Laboratoriet för organisk elektronik. Linköpings universitet, Tekniska fakulteten.ORCID-id: 0000-0001-7016-6514
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2019 (engelsk)Inngår i: ADVANCED ELECTRONIC MATERIALS, ISSN 2199-160X, Vol. 5, nr 6, artikkel-id 1800975Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Semiconducting polymers are promising materials for manufacturing optoelectronic devices, such as large-area solar cells or small light-emitting diodes, through the use of printing technologies. In their oxidized form, pi-conjugated polymers become good electrical conductors and their optical absorption shifts to the infrared region. It is demonstrated that conducting polymers can be integrated in bolometers for IR detection. A bolometer is a thermally isolated thin device that absorbs IR radiation and translates a temperature change into a change in electrical resistance. While commercial bolometers are usually made of complex architectures comprising several materials (that is, an IR absorbing layer, a conducting layer, and a thermally insulating layer), the first polymer bolometer is demonstrated with a freestanding layer of poly(3,4-ethylene-dioxythiophene) having high IR absorption, low thermal conductivity, and good thermistor action in one single layer. The solution processability of conducting polymers, their compatibility with high-resolution printing technologies, and their unique combination of optoelectronic properties can lead to a breakthrough for low-cost uncooled IR cameras, which are in high demand for security and safety applications.

sted, utgiver, år, opplag, sider
Wiley-VCH Verlagsgesellschaft, 2019. Vol. 5, nr 6, artikkel-id 1800975
Emneord [en]
conducting polymers; IR detection; low-cost thermal imaging; organic bolometers; PEDOT; PSS
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Identifikatorer
URN: urn:nbn:se:liu:diva-158895DOI: 10.1002/aelm.201800975ISI: 000471049100010Scopus ID: 2-s2.0-85065330076OAI: oai:DiVA.org:liu-158895DiVA, id: diva2:1337569
Merknad

Funding Agencies|Knut and Alice Wallenberg Foundation (Tail of the Sun); Swedish Energy Agency; Swedish Research Council; AForsk; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO-Mat-LiU) [2009 00971]; U.S. National Science Foundation [DMR-1262261]

Tilgjengelig fra: 2019-07-16 Laget: 2019-07-16 Sist oppdatert: 2019-08-13bibliografisk kontrollert

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