So, Jae-Pil Kim, Ha-Reem Baek, Hyeonjun Jeong, Kwang-Yong Lee, Hoo-Cheol Huh, Woong Kim, Yoon Seok Watanabe, Kenji Taniguchi, Takashi Kim, Jungkil Lee, Chul-Ho Park, Hong-Gyu 2024-01-19T13:33:11Z 2024-01-19T13:33:11Z 2022-01-25 2021-10 2375-2548 https://pubs.kist.re.kr/handle/201004/116286 Quantum confinement in transition metal dichalcogenides (TMDCs) enables the realization of deterministic single-photon emitters. The position and polarization control of single photons have been achieved via local strain engineering using nanostructures. However, most existing TMDC-based emitters are operated by optical pumping, while the emission sites in electrically pumped emitters are uncontrolled. Here, we demonstrate electrically driven single-photon emitters located at the positions where strains are induced by atomic force microscope indentation on a van der Waals heterostructure consisting of graphene, hexagonal boron nitride, and tungsten diselenide. The optical, electrical, and mechanical properties induced by the local strain gradient were systematically analyzed. The emission at the indentation sites exhibits photon antibunching behavior with a g((2))(0) value of similar to 0.3, intensity saturation, and a linearly cross-polarized doublet, at 4 kelvin. This robust spatial control of electrically driven single-photon emitters will pave the way for the practical implementation of integrated quantum light sources. English AMER ASSOC ADVANCEMENT SCIENCE Electrically driven strain-induced deterministic single-photon emitters in a van der Waals heterostructure Article 10.1126/sciadv.abj3176 1 SCIENCE ADVANCES, v.7, no.43 SCIENCE ADVANCES 7 43 N scie scopus 000711845800032 2-s2.0-85117685767 Multidisciplinary Sciences Science & Technology - Other Topics Article LIGHT-EMITTING-DIODES LOCALIZED EXCITONS QUANTUM EMITTERS MONOLAYER EMISSION SEMICONDUCTOR DEFECTS DOTS