We report the first organic semiconductor crystal with a unique combination of properties that can be used as a multifunctional optoelectronic device. Mechanically flexible single crystals of 9,10-bis(phenylethynyl)anthracene (BPEA) can function as a phototransistor, photoswitch, and an optical waveguide. The material can exist as two structurally different solid phases, with single crystals of one of the phases being elastic at room temperature while those of the other are brittle and become plastic at higher temperature. The output and transfer characteristics of the devices were characterized by measuring the generation and temporal response of the switching of the photogenerated current. The current–voltage characteristics of both phases exhibit linearity and symmetry about the positive and negative voltages. The crystals transmit light in the telecommunications range with significantly low optical loss for an organic crystalline material.

Multifunctional Deformable Organic Semiconductor Single Crystals / Karothu, D. P.; Dushaq, G.; Ahmed, E.; Catalano, L.; Rasras, M.; Naumov, P.. - In: ANGEWANDTE CHEMIE. INTERNATIONAL EDITION. - ISSN 1433-7851. - 60:50(2021), pp. 26151-26157. [10.1002/anie.202110676]

Multifunctional Deformable Organic Semiconductor Single Crystals

Catalano L.;
2021

Abstract

We report the first organic semiconductor crystal with a unique combination of properties that can be used as a multifunctional optoelectronic device. Mechanically flexible single crystals of 9,10-bis(phenylethynyl)anthracene (BPEA) can function as a phototransistor, photoswitch, and an optical waveguide. The material can exist as two structurally different solid phases, with single crystals of one of the phases being elastic at room temperature while those of the other are brittle and become plastic at higher temperature. The output and transfer characteristics of the devices were characterized by measuring the generation and temporal response of the switching of the photogenerated current. The current–voltage characteristics of both phases exhibit linearity and symmetry about the positive and negative voltages. The crystals transmit light in the telecommunications range with significantly low optical loss for an organic crystalline material.
2021
60
50
26151
26157
Multifunctional Deformable Organic Semiconductor Single Crystals / Karothu, D. P.; Dushaq, G.; Ahmed, E.; Catalano, L.; Rasras, M.; Naumov, P.. - In: ANGEWANDTE CHEMIE. INTERNATIONAL EDITION. - ISSN 1433-7851. - 60:50(2021), pp. 26151-26157. [10.1002/anie.202110676]
Karothu, D. P.; Dushaq, G.; Ahmed, E.; Catalano, L.; Rasras, M.; Naumov, P.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1329241
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