Structure/property relationships in advanced materials for electronics and photonics

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Engineered porous materials are finding increasingly diverse applications in electronics and photonics technologies. Self-assembled colloidal crystal films offer great potential as simple, inexpensive materials exhibiting a variety of unique optical and physical properties. It is therefore of much scientific and technological interest to optimize these properties through the elimination, or at least the minimization, of the various intrinsically-formed defects revealed in our previous studies. Fortunately, the forms of defect having the most adverse effects on the optical properties of colloidal photonic crystals are the ones most readily addressed. These are: i) cracks and ii) impurity spheres, which give rise to partial dislocations and stacking faults. Strategies to eliminate or minimize the occurrence of these defects will be developed in this study.