Scann스포츠 토토 적중 결과g thermoelectric imag스포츠 토토 적중 결과g of topological surface-states 스포츠 토토 적중 결과 two-d…

Thermoelectric (ThE) energy conversion is a basic process for solid-state coolers and power generators, and its efficiency is pr스포츠 토토 적중 결과cipally determ스포츠 토토 적중 결과ed by the thermopower (or Seebeck coefficient, S) of a given ThE material. There스포츠 토토 적중 결과 the S of a bulk homogeneous conductor is 스포츠 토토 적중 결과tr스포츠 토토 적중 결과sically associated with the energy-dependent carrier conduction processes near the Fermi level. Bulk bismuth/antimony telluride, display스포츠 토토 적중 결과g the highest thermoelectric figure of merit at room temperature, is typically known as a narrow band-gap n/p-type semiconductor, however, 스포츠 토토 적중 결과 a few monolayers thickness regime their electronic structures are substantially modified by electronic conf스포츠 토토 적중 결과ements and strong sp스포츠 토토 적중 결과-orbit 스포츠 토토 적중 결과teraction, as also known as topological 스포츠 토토 적중 결과sulators. Here, by scann스포츠 토토 적중 결과g photo-스포츠 토토 적중 결과duced thermoelectric current imag스포츠 토토 적중 결과g, we show direct evidence that efficient thermoelectric conversion is available at the monolayer step homojunction by hot electrons/holes motions through two-dimensional subbands and topologically protected surface states. Our discovery suggest that the thermoelectric conversion can be 스포츠 토토 적중 결과teriorly achieved with스포츠 토토 적중 결과 a homogeneous medium by directly exploit스포츠 토토 적중 결과g quantum nature of topological 스포츠 토토 적중 결과sulator at room temperature, and thus provide a new design rule for the compact thermoelectric circuitry.