Nanoscale Electrically Driven Light Source Based on Hybrid Semiconductor/Metal Nanoantenna.

Autor: Lebedev DV; St. Petersburg Academic University, 8/3 Khlopina str., St. Petersburg 194021, Russia.; Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia.; Institute for Analytical Instrumentation RAS, 26 Rizhskii pr., St. Petersburg 190103, Russia., Shkoldin VA; St. Petersburg Academic University, 8/3 Khlopina str., St. Petersburg 194021, Russia.; ITMO University, 9 Kronverksky pr., St. Petersburg 197101, Russia., Mozharov AM; Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia., Larin AO; ITMO University, 9 Kronverksky pr., St. Petersburg 197101, Russia., Permyakov DV; ITMO University, 9 Kronverksky pr., St. Petersburg 197101, Russia., Samusev AK; ITMO University, 9 Kronverksky pr., St. Petersburg 197101, Russia., Petukhov AE; Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia., Golubok AO; Institute for Analytical Instrumentation RAS, 26 Rizhskii pr., St. Petersburg 190103, Russia., Arkhipov AV; Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, St. Petersburg 195251, Russia., Mukhin IS; St. Petersburg Academic University, 8/3 Khlopina str., St. Petersburg 194021, Russia.; Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya, 29, St. Petersburg 195251, Russia.
Jazyk: angličtina
Zdroj: The journal of physical chemistry letters [J Phys Chem Lett] 2022 May 26; Vol. 13 (20), pp. 4612-4620. Date of Electronic Publication: 2022 May 19.
DOI: 10.1021/acs.jpclett.2c00986
Abstrakt: A micro- or nanosized electrically controlled source of optical radiation is one of the key elements in optoelectronic systems. The phenomenon of light emission via inelastic tunneling (LEIT) of electrons through potential barriers or junctions opens up new possibilities for development of such sources. In this work, we present a simple approach for fabrication of nanoscale electrically driven light sources based on LEIT. We employ STM lithography to locally modify the surface of a Si/Au film stack via heating, which is enabled by a high-density tunnel current. Using the proposed technique, hybrid Si/Au nanoantennas with a minimum diameter of 60 nm were formed. Studying both electronic and optical properties of the obtained nanoantennas, we confirm that the resulting structures can efficiently emit photons in the visible range because of inelastic scattering of electrons. The proposed approach allows for fabrication of nanosized hybrid nanoantennas and studying their properties using STM.
Databáze: MEDLINE
Externí odkaz: