Showing papers by "Michael Walsh published in 2006"
TL;DR: Photon-based systems achieve pattern fidelity with greater ease than electron-beam systems, but achieving comparable resolution requires novel approaches, which remain to be demonstrated.
56 citations
TL;DR: In this paper, the first demonstration of PbTe-based, crossplane quantum-dot superlattice (QDSL) unicouple thermoelectric generator devices fabricated from nanostructured, thick-film materials (∼100μm).
Abstract: We describe the first demonstration of PbTe-based, cross-plane quantum-dot superlattice (QDSL) unicouple thermoelectric generator devices fabricated from nanostructured, thick-film materials (∼100μm). Both n- and p-type QDSL materials were investigated. With ∼220K temperature difference across small thermoelements (∼95μm length, 4mm2 cross-sectional area), electrical power outputs up to 89mW and power densities up to 2.2W∕cm2 have been demonstrated for both n- and p-type materials. The devices consist of a substrate-free, bulklike slab of molecular beam epitaxy grown PbSeTe∕PbTe QDSL material as the n- or p-type leg and a copper wire as the other p-type leg.
33 citations