Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2601.14898 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908779754291200 |
|---|---|
| author | Fujimaru, Tomoyasu Hirai, Kanta Inamata, Masato Tanaka, Hiromu Ikeuchi, Midori Yamashita, Hidehiro Haruta, Mitsutaka Tamaoka, Takehiko Kawasaki, Naohiko Saito, Hikaru |
| author_facet | Fujimaru, Tomoyasu Hirai, Kanta Inamata, Masato Tanaka, Hiromu Ikeuchi, Midori Yamashita, Hidehiro Haruta, Mitsutaka Tamaoka, Takehiko Kawasaki, Naohiko Saito, Hikaru |
| contents | Integration of high-quality photon emitters at specific locations within nanophotonic structures or optoelectronic devices is a key to innovating on-chip optical control and quantum technologies. Halide perovskite nanoparticles have great potential as single photon emitters with high quantum efficiency. To achieve their full potential, they must be embedded in a host material that ensures chemical stability and passivates surface defects. A previous experiment on a CsPbBr3-Cs4PbBr6 nanocomposite film suggested possibility that electron beam irradiation can be used to control positions of CsPbBr3 nano-light sources in the Cs4PbBr6 host although the effects of electron beam irradiation are not fully understood. Here, we fabricate a Cs4PbBr6-CsBr film, not containing the CsPbBr3 phase, and provide direct evidence that CsPbBr3 nanoparticles can be locally generated in the Cs4PbBr6 host by irradiation with a focused electron beam. We further demonstrate perovskite nano-light source arrays with submicron spacing using this method. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_14898 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Precisely positioned generation of CsPbBr3 nano-light sources in a Cs4PbBr6 film by electron beam irradiation Fujimaru, Tomoyasu Hirai, Kanta Inamata, Masato Tanaka, Hiromu Ikeuchi, Midori Yamashita, Hidehiro Haruta, Mitsutaka Tamaoka, Takehiko Kawasaki, Naohiko Saito, Hikaru Mesoscale and Nanoscale Physics Integration of high-quality photon emitters at specific locations within nanophotonic structures or optoelectronic devices is a key to innovating on-chip optical control and quantum technologies. Halide perovskite nanoparticles have great potential as single photon emitters with high quantum efficiency. To achieve their full potential, they must be embedded in a host material that ensures chemical stability and passivates surface defects. A previous experiment on a CsPbBr3-Cs4PbBr6 nanocomposite film suggested possibility that electron beam irradiation can be used to control positions of CsPbBr3 nano-light sources in the Cs4PbBr6 host although the effects of electron beam irradiation are not fully understood. Here, we fabricate a Cs4PbBr6-CsBr film, not containing the CsPbBr3 phase, and provide direct evidence that CsPbBr3 nanoparticles can be locally generated in the Cs4PbBr6 host by irradiation with a focused electron beam. We further demonstrate perovskite nano-light source arrays with submicron spacing using this method. |
| title | Precisely positioned generation of CsPbBr3 nano-light sources in a Cs4PbBr6 film by electron beam irradiation |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2601.14898 |