Applied Physics Letters

Nano-light source generation by electron beam irradiation of CsPbBr3/Cs4PbBr6 composites

H Hikaru Saito (Institute for Materials Chemistry and Engineering, Kyushu University 1 , 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580,) K Kotaro Kihara (Department of Energy Science and Engineering, School of Engineering, Kyushu University 3 , 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580,) M Midori Ikeuchi (Institute for Materials Chemistry and Engineering, Kyushu University 1 , 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580,) S Sotatsu Yanagimoto (Department of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science Tokyo 2 , 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503,) T Tetsuya Kubota (Department of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science Tokyo 2 , 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503,) K Keiichirou Akiba (Department of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science Tokyo 2 , 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503,) T Takumi Sannomiya (Department of Materials Science and Engineering)

Abstract

Precise allocation of nano-light sources in photonic integrated circuits is essential for the development of next-generation optical technologies such as optical nano-circuits, quantum information processing, and quantum communication. However, controlling the position of such light sources is a challenging task. We here show that halide perovskite nanoparticle light sources can be generated at the desired positions by electron beam. We applied cathodoluminescence spectroscopy to CsPbBr3/Cs4PbBr6 composites produced by thermal evaporation and discovered that the intensity of green light emission from the CsPbBr3 nanoparticles increased with electron beam irradiation. Furthermore, by taking advantage of the high spatial resolution and controllability of the electron beam, we demonstrate nano-light source patterning on the composite film.

Download PDF View Original
APA MLA Chicago BibTeX RIS

Article Details

Volume / Issue Vol. 127, Issue 26
Published December 29, 2025
ISSN 0003-6951
Publisher American Institute of Physics

Journal Info

Applied Physics Letters

American Institute of Physics
ISSN: 0003-6951 Physical Sciences

Authors (7)

H

Hikaru Saito

Institute for Materials Chemistry and Engineering, Kyushu University 1 , 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580,

K

Kotaro Kihara

Department of Energy Science and Engineering, School of Engineering, Kyushu University 3 , 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580,

M

Midori Ikeuchi

Institute for Materials Chemistry and Engineering, Kyushu University 1 , 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580,

S

Sotatsu Yanagimoto

Department of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science Tokyo 2 , 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503,

T

Tetsuya Kubota

Department of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science Tokyo 2 , 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503,

K

Keiichirou Akiba

Department of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science Tokyo 2 , 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503,

T

Takumi Sannomiya

Department of Materials Science and Engineering

Related Articles from this Journal

Interface engineering with an rGO electron extraction layer for high-efficiency and stable Cu2ZnSnS4-based photocathode

Zhenyan Xiao, Piao Zhang et al. Aug 2026 10.1063/5.0312010

Transmission diffuse EUV scattering by nanoscale Lamb waves in thin membranes

Alessandra Milloch, Naman Agarwal et al. Aug 2026 10.1063/5.0343558

Optimized Nb-doped SnO2 buffer layer for enhanced carrier extraction and Sb2S3 photovoltaic responses

Xinsheng Liu, Xiangyang Liu et al. Aug 2026 10.1063/5.0343471

Exceptionally high thermoelectric power factors at low temperatures in heavily doped p- and n-type Ge-rich Ge1−xSnx films

Masashi Kurosawa, Takayoshi Katase et al. Aug 2026 10.1063/5.0346412

Unlocking room-temperature magnetoelectricity in Ba1.5Sr1.5-based Z-type hexaferrites via magnetic anisotropy modulation

Huantong Wu, Jun Li et al. Aug 2026 10.1063/5.0314711