Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 15, Pages 12904-12912Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b00828
Keywords
inkjet; organic photodetectors; printed photodetectors; radiation detectors; X-ray imaging
Funding
- FEDER funds through the COMPETE 2020 Programme
- FCT-Portuguese Foundation for Science and Technology [UID/FIS/04650/2013, PTDC/EEI-SII/5582/2014, PTDC/CTM-ENE/5387/2014, ENMed/0049/2016]
- FCT [SFRH/BD/98219/2013, SFRH/BPD/97739/2013]
- Spanish Ministry of Economy and Competitiveness (MINECO) [MAT2016-76039-C4-3-R]
- Basque Government Industry Department under the ELKARTEK program
- DFG Unit SMINT [FOR1317]
- Tomsk Polytechnic University Competitiveness Enhancement Program grant [TPU CEP_IHTP_73\2017]
- European COST Action Nanospectroscopy [MP1302]
- Fundação para a Ciência e a Tecnologia [ENMed/0049/2016] Funding Source: FCT
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Organic photodetectors (PDs) based on printing technologies will allow to expand the current field of PD applications toward large-area and flexible applications in areas such as medical imaging, security, and quality control, among others. Inkjet printing is a powerful digital tool for the deposition of smart and functional materials on various substrates, allowing the development of electronic devices such as PDs on various substrates. In this work, inkjet-printed PD arrays, based on the organic thin-film transistor architecture, have been developed and applied for the indirect detection of X-ray radiation using a scintillator ink as an X-ray absorber. The >90% increase of the photocurrent of the PDs under Xray radiation, from about 53 nA without the scintillator film to about 102 nA with the scintillator located on top of the PD, proves the suitability of the developed printed device for X-ray detection applications.
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