Zinc oxide nanostructures enhanced photoluminescence by carbon-black nanoparticles in Moiré heterostructures
Abstract ZnO/carbon-black heterostructures were synthesized using a sol–gel method and crystallized by annealing at 500 °C under 2 × 10−2 Torr for 10 min. The crystal structures and binding vibration modes were determined by XRD, HRTEM, and Raman spectrometry. Their surface morphologies were observe...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-06-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-36847-1 |
| _version_ | 1797801437312319488 |
|---|---|
| author | Chih-Chiang Wang An-Ya Lo Ming-Che Cheng Yu-Sung Chang Han-Chang Shih Fuh-Sheng Shieu He-Ting Tsai |
| author_facet | Chih-Chiang Wang An-Ya Lo Ming-Che Cheng Yu-Sung Chang Han-Chang Shih Fuh-Sheng Shieu He-Ting Tsai |
| author_sort | Chih-Chiang Wang |
| collection | DOAJ |
| description | Abstract ZnO/carbon-black heterostructures were synthesized using a sol–gel method and crystallized by annealing at 500 °C under 2 × 10−2 Torr for 10 min. The crystal structures and binding vibration modes were determined by XRD, HRTEM, and Raman spectrometry. Their surface morphologies were observed by FESEM. The Moiré pattern that is observed in the HRTEM images confirms that the carbon-black nanoparticles were covered by the ZnO crystals. Measurements of optical absorptance revealed that the optical band gap of the ZnO/carbon-black heterostructures increased from 2.33 to 2.98 eV as the carbon-black nanoparticle content increases from 0 to 8.33 × 10−3 mol owing to the Burstein–Moss effect. The photoluminescence intensities at the near-band edge and of the violet, and blue light were increased by factors about 68.3, 62.8, and 56.8, respectively, when the carbon-black contents is of the 2.03 × 10−3 mol. This work reveals that the proper carbon-black nanoparticle content involved increases the PL intensities of the ZnO crystals in the short wavelength regime, supporting their potential application in the light-emitting devices. |
| first_indexed | 2024-03-13T04:50:28Z |
| format | Article |
| id | doaj.art-655898dfc4dc4f41b46530e375ae15eb |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-13T04:50:28Z |
| publishDate | 2023-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-655898dfc4dc4f41b46530e375ae15eb2023-06-18T11:15:04ZengNature PortfolioScientific Reports2045-23222023-06-0113111010.1038/s41598-023-36847-1Zinc oxide nanostructures enhanced photoluminescence by carbon-black nanoparticles in Moiré heterostructuresChih-Chiang Wang0An-Ya Lo1Ming-Che Cheng2Yu-Sung Chang3Han-Chang Shih4Fuh-Sheng Shieu5He-Ting Tsai6Department of Chemical and Materials Engineering, National Chin-Yi University of TechnologyDepartment of Chemical and Materials Engineering, National Chin-Yi University of TechnologyDepartment of Materials Science and Engineering, National Chung Hsing UniversityDepartment of Materials Science and Engineering, National Chung Hsing UniversityDepartment of Materials Science and Engineering, National Chung Hsing UniversityDepartment of Materials Science and Engineering, National Chung Hsing UniversityInstrument Center, The Office of Research and Development, National Chung Hsing UniversityAbstract ZnO/carbon-black heterostructures were synthesized using a sol–gel method and crystallized by annealing at 500 °C under 2 × 10−2 Torr for 10 min. The crystal structures and binding vibration modes were determined by XRD, HRTEM, and Raman spectrometry. Their surface morphologies were observed by FESEM. The Moiré pattern that is observed in the HRTEM images confirms that the carbon-black nanoparticles were covered by the ZnO crystals. Measurements of optical absorptance revealed that the optical band gap of the ZnO/carbon-black heterostructures increased from 2.33 to 2.98 eV as the carbon-black nanoparticle content increases from 0 to 8.33 × 10−3 mol owing to the Burstein–Moss effect. The photoluminescence intensities at the near-band edge and of the violet, and blue light were increased by factors about 68.3, 62.8, and 56.8, respectively, when the carbon-black contents is of the 2.03 × 10−3 mol. This work reveals that the proper carbon-black nanoparticle content involved increases the PL intensities of the ZnO crystals in the short wavelength regime, supporting their potential application in the light-emitting devices.https://doi.org/10.1038/s41598-023-36847-1 |
| spellingShingle | Chih-Chiang Wang An-Ya Lo Ming-Che Cheng Yu-Sung Chang Han-Chang Shih Fuh-Sheng Shieu He-Ting Tsai Zinc oxide nanostructures enhanced photoluminescence by carbon-black nanoparticles in Moiré heterostructures Scientific Reports |
| title | Zinc oxide nanostructures enhanced photoluminescence by carbon-black nanoparticles in Moiré heterostructures |
| title_full | Zinc oxide nanostructures enhanced photoluminescence by carbon-black nanoparticles in Moiré heterostructures |
| title_fullStr | Zinc oxide nanostructures enhanced photoluminescence by carbon-black nanoparticles in Moiré heterostructures |
| title_full_unstemmed | Zinc oxide nanostructures enhanced photoluminescence by carbon-black nanoparticles in Moiré heterostructures |
| title_short | Zinc oxide nanostructures enhanced photoluminescence by carbon-black nanoparticles in Moiré heterostructures |
| title_sort | zinc oxide nanostructures enhanced photoluminescence by carbon black nanoparticles in moire heterostructures |
| url | https://doi.org/10.1038/s41598-023-36847-1 |
| work_keys_str_mv | AT chihchiangwang zincoxidenanostructuresenhancedphotoluminescencebycarbonblacknanoparticlesinmoireheterostructures AT anyalo zincoxidenanostructuresenhancedphotoluminescencebycarbonblacknanoparticlesinmoireheterostructures AT mingchecheng zincoxidenanostructuresenhancedphotoluminescencebycarbonblacknanoparticlesinmoireheterostructures AT yusungchang zincoxidenanostructuresenhancedphotoluminescencebycarbonblacknanoparticlesinmoireheterostructures AT hanchangshih zincoxidenanostructuresenhancedphotoluminescencebycarbonblacknanoparticlesinmoireheterostructures AT fuhshengshieu zincoxidenanostructuresenhancedphotoluminescencebycarbonblacknanoparticlesinmoireheterostructures AT hetingtsai zincoxidenanostructuresenhancedphotoluminescencebycarbonblacknanoparticlesinmoireheterostructures |