Effects of PCBM loading on high sensitive P3HT based vertical bulk resistive X-ray detector
Yükleniyor...
Dosyalar
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elseiver
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Recently, semiconductive polymeric materials have attracted attention as an active layer for detecting ionizing radiation because of their excellent properties such as flexibility, easy production, solution processability and low-cost production. This paper presents X-ray detection properties of Poly(3-hexylthiophene) (P3HT):Phenyl C61 butyric acid methyl ester (PCBM) blend structure with different PCBM loading ratios. P3HT:PCBM mixing ratio was changed from 1:0 to 1:2. Top contact of the pure and blend structured device were produced by using a solution based graphite ink. Devices were constructed with vertical bulk resistive architecture within an ohmic electrode structure as ITO/PEDOT:PSS/P3HT:PCBM/Graphite configuration. Graphite electrode was coated on the active layer with the spray coating method. All devices exhibited ohmic current-voltage (I-V) characteristics. The blend structured devices exhibited stable saw-tooth type behaviour in photocurrent responses against the on and off states of X-rays. Saw-tooth type responses could be evaluated as major evidence for a potential usage of organic electronic device technology direct radiation detectors. Although the best sensitivity value to X-ray was obtained with the blend structure with equal ratio, it was observed that the rise and decay times were shortened with the increase in the amount of PCBM in the blend structure from.
Açıklama
This study was supported by Turkish Energy, Nuclear and Mineral Research Agency. Project number:. 2020 TENMAK (CERN) A5.H1.F5-27 and Scientific Research Projects Coordination Unit of Istanbul Univer-sity-Cerrahpasa. Project number:. FBA-2021-35885.s
Anahtar Kelimeler
X-Ray Detection, Dosimetry, Organic X-Ray Detector, Graphite Electrode, P3HT, PCBM
Kaynak
Organic Electronics
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
111
Sayı
Künye
Kalkan, Y., Öztürk, S., & Kösemen, A. (2022). Effects of PCBM loading on high sensitive P3HT based vertical bulk resistive X-ray detector. Organic Electronics, 111, 106665.
