DataVXChemistry of MaterialsPaper
journal article·2016-08-09

Few-Atom-Thick Colloidal PbS/CdS Core/Shell Nanosheets

Simeen Khan, Zhoufeng Jiang, Shashini M. Premathilka, Antara Antu, Jianjun Hu, Andrey A. Voevodin, Paul J. Roland, Randy J. Ellingson, Liangfeng Sun

Chemistry of Materials· Volume 28· Issue 15
Publisher page
Source abstract

Abstract

Emissive PbS/CdS core/shell nanosheets are synthesized using a cation-exchange method. A significant blue-shift of the photoluminescence is observed, indicating a stronger quantum confinement in the PbS core as its thickness is reduced. High resolution transmission-electron-microscopy images of the cross sections of the core/shell nanosheets show atomically sharp interfaces between PbS and CdS. Accurate analysis of the thickness of each layer reveals the relationship between the energy gap and the thickness in the extremely one-dimensionally confined nanostructure. Photoluminescence lifetime of the core/shell nanosheets is significantly longer than the core-only nanosheets, indicating better surface passivation.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Quantum Dots Synthesis And Properties · Topological Materials and Phenomena · 2D Materials and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics and Astronomy, Bowling Green State University, Bowling Green, Ohio 43403, United States

Center of Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States

Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, United States

Department of Physics and Astronomy, Wright Center for Photovoltaics Innovation and Commercialization, School of Solar and Advanced Renewable Energy, University of Toledo, Toledo, Ohio 43606, United States

Funding

Air Force Research Laboratory · Office of the Vice President for Research and Economic Development, Bowling Green State University · Wright Center for Photovoltaics Innovation and Commercialization, University of Toledo

References (37)

Show source-provided references
1. 10.1063/1.474578610.1063/1.4745786 ↗
2. 10.1039/C4NR06957A10.1039/C4NR06957A ↗
3. 10.1016/0378-4371(94)90405-710.1016/0378-4371(94)90405-7 ↗
4. 10.1038/ncomms478910.1038/ncomms4789 ↗
5. 10.1021/nn302739e10.1021/nn302739e ↗
6. 10.1088/0953-8984/14/36/31810.1088/0953-8984/14/36/318 ↗
7. 10.1209/0295-5075/85/6700410.1209/0295-5075/85/67004 ↗
8. 10.1021/nl502481f10.1021/nl502481f ↗
9. 10.1021/acs.nanolett.5b0030810.1021/acs.nanolett.5b00308 ↗
10. 10.1038/nmat382810.1038/nmat3828 ↗
11. 10.1038/ncomms196910.1038/ncomms1969 ↗
12. 10.1002/pssr.20120639310.1002/pssr.201206393 ↗
13. 10.1038/ncomms177110.1038/ncomms1771 ↗
14. 10.1038/nmat260910.1038/nmat2609 ↗
15. 10.1021/nl903663a10.1021/nl903663a ↗
16. 10.1021/nl101884h10.1021/nl101884h ↗
17. 10.1103/RevModPhys.82.304510.1103/RevModPhys.82.3045 ↗
18. 10.1103/RevModPhys.83.105710.1103/RevModPhys.83.1057 ↗
19. 10.1103/PhysRevB.91.20140110.1103/PhysRevB.91.201401 ↗
20. 10.1021/ja903539d10.1021/ja903539d ↗
21. 10.1126/science.118803510.1126/science.1188035 ↗
22. 10.1021/nl303568d10.1021/nl303568d ↗
23. 10.1021/ja060168610.1021/ja0601686 ↗
24. 10.1021/ja807724e10.1021/ja807724e ↗
25. 10.1002/anie.20090279110.1002/anie.200902791 ↗
26. 10.1038/nmat314510.1038/nmat3145 ↗
27. 10.1063/1.8821110.1063/1.88211 ↗
28. 10.1021/cm303145f10.1021/cm303145f ↗
29. 10.1021/cm502524z10.1021/cm502524z ↗
30. 10.1021/ja710437r10.1021/ja710437r ↗
31. 10.1021/cm501739h10.1021/cm501739h ↗
32. 10.1021/cm502521q10.1021/cm502521q ↗
33. 10.1021/cm202796s10.1021/cm202796s ↗
34. 10.1021/cm500860810.1021/cm5008608 ↗
35. 10.1021/nn900863a10.1021/nn900863a ↗
36. 10.1039/C5CP03140K10.1039/C5CP03140K ↗
37. 10.1038/nphys310910.1038/nphys3109 ↗