Gas-phase formation of zinc/cadmium chalcogenide cluster complexes and their solid-state thermal decomposition to form II-VI nanoparticulate material

Production and luminescent properties of CdSe and CdS nanoparticle–polymer composites

“…The choice of a polypyridine followed from our discovery [10][11][12][13] that pyridine could control the growth of nanoparticles of ME from the gas phase, but an alternative is suggested by the seminal work of Bawendi [14,15], Alivisatos [16] and others, who have used trioctylphosphine oxide to control the growth of nanoparticles of e.g. CdSe from Me 2 Cd and trioctylphosphine selenide in the presence of trioctylphosphine at high temperature.…”

Control of Metal‐Ion Composition in the Synthesis of Ternary II‐II′‐VI Nanoparticles by Using a Mixed‐Metal Cluster Precursor Approach

“…[5,6] An expansion of this precursor approach involves the use of cluster complexes as single-source precursors to nanoparticle formation. [7,8] Recently, Strouse and co-workers fashioned a convenient synthetic route for the synthesis of II-VI nanoparticles by combining the concept of cluster precursors with the tunability of lyothermal degradation techniques, such as the TOP/TOPO method. [9] The clusters, [M 10 Se 4 (SPh) 16 ] 4À (M = Zn, Cd), [10] which already contain the requisite structural arrangement present in the semiconductor material, were found to be excellent candidates for nanoparticle formation.…”

Strategies for the Scalable Synthesis of Quantum Dots and Related Nanodimensional Materials

“…An investigation of the prereactions which occur between H 2 S/H 2 Se and Me 2 Cd/Me 2 Zn when growing II-VI semiconductor films by CVD techniques, showed that the gas-phase reactions result in the formation of chalcogenide deposits of ZnS, ZnSe, CdS and CdSe, with the deposits consisting of poorly formed hexagonal phase micro-crystalline material [77][78][79]. The addition, into the gas phase, of small amounts of pyridine greatly improved the crystallinity exhibited by the particles, while the addition of larger quantities of pyridine retained the improved crystal quality and also led to a decrease in particle size to the range 10-100 nm.…”