Quasi-continuous-wave operation of solution-processed organic thin-film lasers

Adikari Mudiyanselage Chathuranganie Senevirathne; Van T. N. Mai; Atul Shukla; Buddhika S. B. Karunathilaka; Toshinori Matsushima; Atula S. D. Sandanayaka; Shih-Chun Lo; Ebinazar Namdas; Chihaya Adachi

doi:10.1117/12.2568589

20 August 2020 Quasi-continuous-wave operation of solution-processed organic thin-film lasers

Adikari Mudiyanselage Chathuranganie Senevirathne, Van T. N. Mai, Atul Shukla, Buddhika S. B. Karunathilaka, Toshinori Matsushima, Atula S. D. Sandanayaka, Shih-Chun Lo, Ebinazar Namdas, Chihaya Adachi

Author Affiliations +

Proceedings Volume 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV; 114731S (2020) https://doi.org/10.1117/12.2568589
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

Conference Poster

Abstract

A novel solution processable organic semiconductor dye, 9,9'-(((1E,1'E)-(9,9-dihexyl-9H-fluorene-2,7-diyl)bis(ethene-2,1-diyl))bis(4,1-phenylene))bis(9H-carbazole) (BSFCz) was synthesized and investigated in terms of its amplified spontaneous emission (ASE) and surface emission laser properties under optical excitation. Films of BSFCz, which were blended with tris(4-carbazoyl-9-ylphenyl)amine (TCTA) at 6 wt.% with solution processing, had a low ASE threshold of 1.1 μJ cm−2 and surface emission laser threshold of 0.9 μJ cm−2 with second-order distributed feedback structure. Moreover, our BSFCz-based devices exhibited quasi-continuous-wave lasing with good stability up to 10 ms. To the best of our knowledge, this is the first ever demonstration of solution-processed organic lasers, which can work under the quasi-continuous wave regime.

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Adikari Mudiyanselage Chathuranganie Senevirathne, Van T. N. Mai, Atul Shukla, Buddhika S. B. Karunathilaka, Toshinori Matsushima, Atula S. D. Sandanayaka, Shih-Chun Lo, Ebinazar Namdas, and Chihaya Adachi "Quasi-continuous-wave operation of solution-processed organic thin-film lasers", Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 114731S (20 August 2020); https://doi.org/10.1117/12.2568589

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