Exploiting Organometallic Chemistry to Functionalize Small Cuprous Oxide Colloidal Nanocrystals
Exploiting Organometallic Chemistry to Functionalize Small Cuprous Oxide Colloidal Nanocrystals
复制标题
利用有机金属化学功能化小型氧化亚铜胶体纳米晶体
DOI:
10.1021/jacs.3c10892
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发表时间:
2024
影响因子:
15
通讯作者:
Cowie B
中科院分区:
文献类型:
--
作者:
Cowie B
The ligand chemistry of colloidal semiconductor nanocrystals mediates their solubility, band gap, and surface facets. Here, selective organometallic chemistry is used to prepare small, colloidal cuprous oxide nanocrystals and to control their surface chemistry by decorating them with metal complexes. The strategy is demonstrated using small (3–6 nm) cuprous oxide (Cu2O) colloidal nanocrystals (NC), soluble in organic solvents. Organometallic complexes are coordinated by reacting the surface Cu–OH bonds with organometallic reagents, M(C6F5)2, M = Zn(II) and Co(II), at room temperature. These reactions do not disrupt the Cu2O crystallinity or nanoparticle size; rather, they allow for the selective coordination of a specific metal complex at the surface. Subsequently, the surface-coordinated organometallic complex is reacted with three different carboxylic acids to deliver Cu–O–Zn(O2CR’) complexes. Selective nanocrystal surface functionalization is established using spectroscopy (IR,19F NMR), thermal gravimetric analyses (TGA), transmission electron microscopy (TEM, EELS), and X-ray photoelectron spectroscopy (XPS). Photoluminescence efficiency increases dramatically upon organometallic surface functionalization relative to that of the parent Cu2O NC, with the effect being most pronounced for Zn(II) decoration. The nanocrystal surfaces are selectively functionalized by both organic ligands and well-defined organometallic complexes; this synthetic strategy may be applicable to many other metal oxides, hydroxides, and semiconductors. In the future, it should allow NC properties to be designed for applications including catalysis, sensing, electronics, and quantum technologies.
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DOI:
--
发表时间:
2023
期刊:
BUKS - Tidsskrift for Børne- & Ungdomskultur
影响因子:
--
作者:
Flemming Mouritsen
通讯作者:
Flemming Mouritsen
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
A. Tsuge;Y. Uwamino;T. Ishizuka
通讯作者:
T. Ishizuka
影响因子:
17.1
作者:
Pike, Sebastian D.;White, Edward R.;Shaffer, Milo S. P.
通讯作者:
Shaffer, Milo S. P.
影响因子:
56.9
作者:
Coropceanu, Igor;Janke, Eric M.;Talapin, Dmitri, V
通讯作者:
Talapin, Dmitri, V
影响因子:
--
作者:
Barriere, Clement;Alcaraz, Gilles;Chaudret, Bruno
通讯作者:
Chaudret, Bruno