Fabrication of Thin Films from Powdered Cesium Lead Bromide (CsPbBr3) Perovskite Quantum Dots for Coherent Green Light Emission

dc.contributor.authorQaid, Saif M. H.
dc.contributor.authorGhaithan, Hamid M.
dc.contributor.authorAl-Asbahi, Bandar Ali
dc.contributor.authorAlqasem, Abdulaziz
dc.contributor.authorAldwayyan, Abdullah S.
dc.contributor.institutionDepartment of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
dc.contributor.institutionDepartment of Physics, Faculty of Science, Ibb University, Ibb 70270, Yemen
dc.contributor.institutionDepartment of Physics, Faculty of Science, Sana’a University, Sana’a 70270, Yemen
dc.contributor.institutionKing Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia
dc.contributor.institutionK. A. CARE Energy Research and Innovation Center at Riyadh, Riyadh 11451, Saudi Arabia
dc.date.accepted2020-11-03
dc.date.accessioned2020-11-17T06:13:02Z
dc.date.available2020-11-17T06:13:02Z
dc.date.issued2020-11-12
dc.date.submitted2020-09-15
dc.description.abstractHigh-quality thin films were obtained directly by spin-coating glass substrates with suspensions of powdered cesium lead bromide (CsPbBr3) perovskite quantum dots (PQDs). The structural properties of the films were characterized via transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) analysis, and atomic force microscopy (AFM). The crystal structure of the CsPbBr3 PQDs was unique. The optical behavior of the CsPbBr3 PQDs, including absorption and emission, was then investigated to determine the absorption coefficient and band gap of the material. The CsPbBr3 PQDs were evaluated as active lasing media and irradiated with a pulsed laser under ambient conditions. The PQDs were laser-active when subjected to optical pumping for pulse durations of 70–80 ps at 15 Hz. Amplified spontaneous emission (ASE) by the CsPbBr3 PQD thin films was observed, and a narrow ASE band (∼5 nm) was generated at a low threshold energy of 22.25 μJ cm–2. The estimated ASE threshold carrier density (nth) was ∼7.06 × 1018 cm–3. Band-gap renormalization (BGR) was indicated by an ASE red shift and a BGR constant of ∼27.10 × 10–8 eV. A large optical absorption coefficient, photoluminescence (PL), and a substantial optical gain indicated that the CsPbBr3 PQD thin films could be embedded in a wide variety of cavity resonators to fabricate unique on-chip coherent light sources.
dc.description.sponsorshipThe authors extend their appreciation to the Deputyship for Research & Innovation, “Ministry of Education“ in Saudi Arabia for funding this research work through the project no. (IFKSURG-1440-038).
dc.eprint.versionPublisher's Version/PDF
dc.identifier.citationQaid, S. M. H., Ghaithan, H. M., Al-Asbahi, B. A., Alqasem, A., & Aldwayyan, A. S. (2020). Fabrication of Thin Films from Powdered Cesium Lead Bromide (CsPbBr3) Perovskite Quantum Dots for Coherent Green Light Emission. ACS Omega. doi:10.1021/acsomega.0c04517
dc.identifier.doi10.1021/acsomega.0c04517
dc.identifier.issn2470-1343
dc.identifier.issn2470-1343
dc.identifier.journalACS Omega
dc.identifier.urihttp://hdl.handle.net/10754/665987
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsomega.0c04517
dc.rightsThis is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
dc.rights.urihttp://pubs.acs.org/page/policy/authorchoice_termsofuse.html
dc.titleFabrication of Thin Films from Powdered Cesium Lead Bromide (CsPbBr3) Perovskite Quantum Dots for Coherent Green Light Emission
dc.typeArticle
display.details.left<span><h5>License</h5>http://pubs.acs.org/page/policy/authorchoice_termsofuse.html<br><br><h5>Type</h5>Article<br><br><h5>Authors</h5><a href="https://repository.kaust.edu.sa/search?query=orcid.id:0000-0001-8958-8960&spc.sf=dc.date.issued&spc.sd=DESC">Qaid, Saif M. H.</a> <a href="https://orcid.org/0000-0001-8958-8960" target="_blank"><img src="https://repository.kaust.edu.sa/server/api/core/bitstreams/82a625b4-ed4b-40c8-865a-d6a5225a26a4/content" width="16" height="16"/></a><br><a href="https://repository.kaust.edu.sa/search?query=orcid.id:0000-0001-5126-4477&spc.sf=dc.date.issued&spc.sd=DESC">Ghaithan, Hamid M.</a> <a href="https://orcid.org/0000-0001-5126-4477" target="_blank"><img src="https://repository.kaust.edu.sa/server/api/core/bitstreams/82a625b4-ed4b-40c8-865a-d6a5225a26a4/content" width="16" height="16"/></a><br><a href="https://repository.kaust.edu.sa/search?query=orcid.id:0000-0002-2308-381X&spc.sf=dc.date.issued&spc.sd=DESC">Al-Asbahi, Bandar Ali</a> <a href="https://orcid.org/0000-0002-2308-381X" target="_blank"><img src="https://repository.kaust.edu.sa/server/api/core/bitstreams/82a625b4-ed4b-40c8-865a-d6a5225a26a4/content" width="16" height="16"/></a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Alqasem, Abdulaziz,equals">Alqasem, Abdulaziz</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Aldwayyan, Abdullah S.,equals">Aldwayyan, Abdullah S.</a><br><br><h5>Date</h5>2020-11-12<br><br><h5>Submitted Date</h5>2020-09-15</span>
display.details.right<span><h5>Abstract</h5>High-quality thin films were obtained directly by spin-coating glass substrates with suspensions of powdered cesium lead bromide (CsPbBr3) perovskite quantum dots (PQDs). The structural properties of the films were characterized via transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD) analysis, and atomic force microscopy (AFM). The crystal structure of the CsPbBr3 PQDs was unique. The optical behavior of the CsPbBr3 PQDs, including absorption and emission, was then investigated to determine the absorption coefficient and band gap of the material. The CsPbBr3 PQDs were evaluated as active lasing media and irradiated with a pulsed laser under ambient conditions. The PQDs were laser-active when subjected to optical pumping for pulse durations of 70–80 ps at 15 Hz. Amplified spontaneous emission (ASE) by the CsPbBr3 PQD thin films was observed, and a narrow ASE band (∼5 nm) was generated at a low threshold energy of 22.25 μJ cm–2. The estimated ASE threshold carrier density (nth) was ∼7.06 × 1018 cm–3. Band-gap renormalization (BGR) was indicated by an ASE red shift and a BGR constant of ∼27.10 × 10–8 eV. A large optical absorption coefficient, photoluminescence (PL), and a substantial optical gain indicated that the CsPbBr3 PQD thin films could be embedded in a wide variety of cavity resonators to fabricate unique on-chip coherent light sources.<br><br><h5>Citation</h5>Qaid, S. M. H., Ghaithan, H. M., Al-Asbahi, B. A., Alqasem, A., & Aldwayyan, A. S. (2020). Fabrication of Thin Films from Powdered Cesium Lead Bromide (CsPbBr3) Perovskite Quantum Dots for Coherent Green Light Emission. ACS Omega. doi:10.1021/acsomega.0c04517<br><br><h5>Acknowledgements</h5>The authors extend their appreciation to the Deputyship for Research & Innovation, “Ministry of Education“ in Saudi Arabia for funding this research work through the project no. (IFKSURG-1440-038).<br><br><h5>Publisher</h5><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.publisher=American Chemical Society (ACS),equals">American Chemical Society (ACS)</a><br><br><h5>Journal</h5><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.journal=ACS Omega,equals">ACS Omega</a><br><br><h5>DOI</h5><a href="https://doi.org/10.1021/acsomega.0c04517">10.1021/acsomega.0c04517</a><br><br><h5>Additional Links</h5>https://pubs.acs.org/doi/10.1021/acsomega.0c04517</span>
orcid.authorQaid, Saif M. H.::0000-0001-8958-8960
orcid.authorGhaithan, Hamid M.::0000-0001-5126-4477
orcid.authorAl-Asbahi, Bandar Ali::0000-0002-2308-381X
orcid.authorAlqasem, Abdulaziz
orcid.authorAldwayyan, Abdullah S.
orcid.id0000-0002-2308-381X
orcid.id0000-0001-5126-4477
orcid.id0000-0001-8958-8960
refterms.dateFOA2020-11-17T06:13:50Z
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
fabrication.pdf
Size:
3.63 MB
Format:
Adobe Portable Document Format
Description:
Published version
Collections