In this work we report the results on the investigation of rubrene single crystals as solid state direct ionizing radiation detectors. With the aim to understand how electrical properties, and in particular a large charge carrier mobility, affect the radiation detection process in organic semiconducting single crystals, we compare the detection performance of rubrene-based devices with those of 1,5-dinitronaphthalene (DNN)-based ones. DNN has been recently proven to be a stable and reliable X-ray direct detector, operating at very low voltages, in air and at room temperature, with a carrier mobility values about two orders of magnitude lower than rubrene. We demonstrate here that the large charge carrier mobility of rubrene crystals does not result in a better X-rays detection performance. In fact, rubrene devices are shown to be less performing than DNN as detectors, with lower sensitivity to X-rays, poorer stability and reproducibility, and longer rise and decay times of the signal.

Basiricò, L., Ciavatti, A., Sibilia, M., Fraleoni Morgera, A., Trabattoni, S., Sassella, A., et al. (2015). Solid State Organic X-Ray Detectors Based on Rubrene Single Crystals. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 62(4), 1791-1797 [10.1109/TNS.2015.2456418].

Solid State Organic X-Ray Detectors Based on Rubrene Single Crystals

TRABATTONI, SILVIA;SASSELLA, ADELE;
2015

Abstract

In this work we report the results on the investigation of rubrene single crystals as solid state direct ionizing radiation detectors. With the aim to understand how electrical properties, and in particular a large charge carrier mobility, affect the radiation detection process in organic semiconducting single crystals, we compare the detection performance of rubrene-based devices with those of 1,5-dinitronaphthalene (DNN)-based ones. DNN has been recently proven to be a stable and reliable X-ray direct detector, operating at very low voltages, in air and at room temperature, with a carrier mobility values about two orders of magnitude lower than rubrene. We demonstrate here that the large charge carrier mobility of rubrene crystals does not result in a better X-rays detection performance. In fact, rubrene devices are shown to be less performing than DNN as detectors, with lower sensitivity to X-rays, poorer stability and reproducibility, and longer rise and decay times of the signal.
Articolo in rivista - Articolo scientifico
1,5-dinitronaphthalene, direct x-ray detectors, organic single crystals, rubrene, sensors
English
1791
1797
7
Basiricò, L., Ciavatti, A., Sibilia, M., Fraleoni Morgera, A., Trabattoni, S., Sassella, A., et al. (2015). Solid State Organic X-Ray Detectors Based on Rubrene Single Crystals. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 62(4), 1791-1797 [10.1109/TNS.2015.2456418].
Basiricò, L; Ciavatti, A; Sibilia, M; Fraleoni Morgera, A; Trabattoni, S; Sassella, A; Fraboni, B
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/89484
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