New Forms of CdSe: Molecular Wires, Gels, and Ordered Mesoporous Assemblies
- Authors
- Hudson, Margaret H.; Dolzhnikov, Dmitriy S.; Filatov, Alexander S.; Janke, Eric M.; Jang, Jaeyoung; Lee, Byeongdu; Sun, Chengjun; Talapin, Dmitri V.
- Issue Date
- Mar-2017
- Publisher
- AMER CHEMICAL SOC
- Citation
- JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.139, no.9, pp.3368 - 3377
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
- Volume
- 139
- Number
- 9
- Start Page
- 3368
- End Page
- 3377
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/4808
- DOI
- 10.1021/jacs.6b10077
- ISSN
- 0002-7863
- Abstract
- This work investigates the structure and properties of soluble chalcogenidocadmates, a molecular form of cadmium chalcogenides with unprecedented one-dimensional bonding motifs. The single crystal X-ray structure reveals that sodium selenocadmate consists of infinite one-dimensional wires of (Cd2Se3)(n)2(n-) charge balanced by Na+ and stabilized by coordinating solvent molecules. Exchanging the sodium cation with tetraethylammonium or didodecyldimethylammonium expands the versatility of selenocadmate by improving its solubility in a variety of polar and nonpolar solvents without changing the anion structure and properties. The introduction of a micelle-forming cationic surfactant allows for the templating of selenocadmate, or the analogous telluride species, to create ordered organic-inorganic hybrid CdSe or CdTe mesostructures. Finally, the interaction of selenocadmate "wires" with Cd2+ ions creates an unprecedented gel-like form of stoichiometric CdSe. We also demonstrate that these low-dimensional CdSe species show characteristic semiconductor behavior, and can be used in photodetectors and field-effect transistors.
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