Toward Low-Voltage and Bendable X-Ray Direct Detectors Based on Organic Semiconducting Single Crystals

A. Ciavatti, E. Capria, A. Fraleoni-Morgera, G. Tromba,  D. Dreossi, P. J. Sellin, P. Cosseddu, A. Bonfiglio, and B. Fraboni

Adv. Mater. 27 (44), pg. 7213–7220, 2015

Organic materials have been mainly proposed as ionizing radiation detectors in the indirect conversion approach. The first thin and bendable X-ray direct detectors are realized (directly converting X-photons into an electric signal) based on organic semiconducting single crystals that possess enhanced sensitivity, low operating voltage (≈5 V), and a minimum detectable dose rate of 50 μGy s⁻¹.