Organic Nanowire Lasers with Epitaxially Grown Crystals of Semiconducting Oligomers
Source abstract
Abstract
Abstract Epitaxially grown nanowires of semiconducting thiophene/phenylene co‐oligomers (TPCOs) were prepared by mask‐shadowing deposition on a cleaved (001) surface of a potassium chloride (KCl) crystal. Under optical pumping, single nanowires of both unsubstituted (p‐type) and cyano‐substituted (n‐type) TPCOs exhibited axial Fabry–Pérot (F‐P) lasing above a threshold fluence which decreased to 11–15 μJ cm−2 with increasing nanowire lengths. Their lying molecular orientation and stacking along the nanowire axis in both TPCOs are suitable for effective light propagation with transverse‐electric mode resulting in better lasing performances compared to two‐dimensional platelet crystals of TPCOs.
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Research context
OpenAlex topics: Strong Light-Matter Interactions · Organic Electronics and Photovoltaics · Molecular Junctions and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate School of Materials Science Nara Institute of Science and Technology (NAIST) 8916-5 Takayama Ikoma Nara 630-0192 Japan
Department of Physics, Faculty of Science Shizuoka University 836 Ohya, Suruga-ku, Shizuoka 422-8529 Japan
Faculty of Electrical Engineering and Electronics Kyoto Institute of Technology Matsugasaki, Sakyo-ku Kyoto 606-8585 Japan
Electronics and Photonics Research Institute National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Umezono Tsukuba Ibaraki 305-8568 Japan
Funding
The Japan Society for the Promotion of Science (JSPS)
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