pH-Induced Surface Modification of Atomically Precise Silver Nanoclusters: An Approach for Tunable Optical and Electronic Properties
Type
ArticleAuthors
AbdulHalim, Lina G.
Hooshmand, Zahra
Parida, Manas R.

Aly, Shawkat Mohammede

Le, Duy
Zhang, Xin
Rahman, Talat S.
Pelton, Matthew
Losovyj, Yaroslav
Dowben, Peter A.
Bakr, Osman

Mohammed, Omar F.

Katsiev, Khabiboulakh
KAUST Department
Chemical Science ProgramFunctional Nanomaterials Lab (FuNL)
KAUST Catalysis Center (KCC)
KAUST Solar Center (KSC)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Ultrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
Date
2016-10-24Online Publication Date
2016-10-24Print Publication Date
2016-11-07Permanent link to this record
http://hdl.handle.net/10754/622449
Metadata
Show full item recordAbstract
Noble metal nanoclusters (NCs) play a pivotal role in bridging the gap between molecules and quantum dots. Fundamental understanding of the evolution of the structural, optical, and electronic properties of these materials in various environments is of paramount importance for many applications. Using state-of-the-art spectroscopy, we provide the first decisive experimental evidence that the structural, electronic, and optical properties of Ag-44(MNBA)(30) NCs can now be tailored by controlling the chemical environment. Infrared and photoelectron spectroscopies clearly indicate that there is a dimerization between two adjacent ligands capping the NCs that takes place upon lowering the pH from 13 to 7.Citation
AbdulHalim LG, Hooshmand Z, Parida MR, Aly SM, Le D, et al. (2016) pH-Induced Surface Modification of Atomically Precise Silver Nanoclusters: An Approach for Tunable Optical and Electronic Properties. Inorganic Chemistry 55: 11522–11528. Available: http://dx.doi.org/10.1021/acs.inorgchem.6b02067.Sponsors
This work was supported by King Abdullah University of Science and Technology (KAUST), and part of this work was supported by Saudi Arabia Basic Industries Corporation (SABIC) grant RGC/3/2470-01. The work at U Nebraska was partly supported by the U. S. Department of Energy through grant #DE-FG02-07ER15842. This work was performed, in part, at the Center for Nanoscale Materials, a U.S. Department of Energy Office of Science User Facility under Contract No. DE-AC02-06CH11357. DFT calculations (ZH, DL, and TSR) were performed at the UCF Advanced Research Computing Center and partially supported by NSF grant CHE-1310327. We thank Sampyo Hong for fruitful discussions.Publisher
American Chemical Society (ACS)Journal
Inorganic ChemistryAdditional Links
http://pubs.acs.org/doi/abs/10.1021/acs.inorgchem.6b02067ae974a485f413a2113503eed53cd6c53
10.1021/acs.inorgchem.6b02067