Micro-rod single-crystalline phthalocyanine for photodetector development

Flexible near-infrared polarized photodetector based on CuPc single crystal grown by microspacing in-air sublimation

“…Our device is superior in terms of its sensitivity and response speed, as compared with the reported photodetectors based on phthalocyanine materials. 18,22,31,32 The photocurrent gain as a function of frequency was also recorded by a home-built highfrequency oscilloscope set-up, at zero gate bias. 33 The cut-off frequency at À3 dB, which is the point where the photocurrent signal was reduced by 2, was measured at about 4 kHz (Fig.…”

“…14,15 Organic single crystals with π-conjugated molecules have emerged as promising alternatives to the construction of high-performance photodetectors, owing to their efficient charge-carrier injection and intrinsic defect-free carrier transport. 16–18…”

“…14,15 Organic single crystals with p-conjugated molecules have emerged as promising alternatives to the construction of high-performance photodetectors, owing to their efficient charge-carrier injection and intrinsic defect-free carrier transport. [16][17][18] Among p-conjugated systems, metallo-phthalocyanines (MPcs) are highly stable complexes of metals with phthalocyanine. MPcs exhibit outstanding advantages, including efficient light absorption, high mobilities, and cost-effectiveness.…”

Gate Controlled Photocurrent Generation Mechanism in Air-Grown Organic Single Crystals for High-Speed Multiband Imaging

“…From a fundamental research point of view, organic single crystals with long-range order and tunable characteristics provide an ideal model system to study the intrinsic properties of organic semiconductors. − For example, long-range exciton diffusion, wavelength-dependent absorption, long-persistent luminescence, and anisotropic charge transport have all been demonstrated in single-crystal systems. On the other hand, from the device performance point of view, organic single crystals with minimal structural defects and grain boundaries, which always lead to exciton quenching, offer more feasibility for boosting the carrier mobility and device sensitivity .…”

Synthesis of Alq3 by a facile co-precipitation approach and study the impact of CNTs support on its microstructure and electronic characteristics for photodiode development

“…In particular, Tris(8-hydroxy-quinoline) aluminum (Alq 3 ) of excellent structuralmorphological merits governing by the interplay between metallic and organic ligands. In addition to, its different crystalline states; , , , , a b e d g and broad light absorption has been used as distinct electron transport in photodetectors and thermoelectric (TE) applications [1][2][3][4]. O Sevgili et al (2020) have investigated the physical properties of Alq 3 microdots for enhancement of the photosensitivity of organic photodiode [5].…”