Characteristic of an Organic Photodetector Fabricated With P3HT:ICBA Blending Materials for Indirect X-Ray Detection

Characteristic of an Organic Photodetector Fabricated With P3HT:ICBA Blending Materials for Indirect X-Ray Detection

In this study, an organic conjugated polymer-based photodetector was investigated as a candidate for the indirecttype radiation detector. In order to improve the photon to charge conversion efficiency, we selected the fullerene derivative indeneC60-bisadduct (ICBA) as an n-type semiconductor. The op...

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Veröffentlicht in:IEEE transactions on nuclear science 2017-07, Vol.64 (7), p.1739-1743
Hauptverfasser: Seon, Hyeji, Kim, Beomsu, Kang, Jungwon
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
Blending
Buckminsterfullerene
Charge coupled devices
Charge efficiency
Detectors
Fullerenes
ICBA
Indene
N-type semiconductors
organic photovoltaic device
organic radiation detector
Photodetectors
Photometers
Polymers
Radiation
Sensitivity
Sensitivity enhancement
Sensors
x-ray detector
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Zusammenfassung:In this study, an organic conjugated polymer-based photodetector was investigated as a candidate for the indirecttype radiation detector. In order to improve the photon to charge conversion efficiency, we selected the fullerene derivative indeneC60-bisadduct (ICBA) as an n-type semiconductor. The optimal process condition was investigated while varying the P3HT:ICBA blending ratio and spin-rate. The detector at the condition of P3HT:ICBA = 3:2 blending ratio and 900 rpm spin-rate showed the highest sensitivity of 1.35 mC/Gy · cm 2 and the highest PCE of 2.93%. Compared to the common P3HT:PCBM detector, the best P3HT:ICBA detector showed 27.36% enhancement of sensitivity and 27.68% enhancement of the PCE.
ISSN:0018-9499
1558-1578
DOI:10.1109/TNS.2016.2645228