Oh, Jinwoo Kim, Youngwoo Chung, Seungjun Kim, Heesuk Son, Jeong Gon 2024-01-19T18:32:43Z 2024-01-19T18:32:43Z 2021-09-04 2019-12-06 2196-7350 https://pubs.kist.re.kr/handle/201004/119209 A number of 2D materials have been developed that have properties different from bulk materials due to the quantum confinement effect. These 2D materials can also form a vertical van der Waals heterojunction at a large interface with other 2D materials, resulting in unique electronic and thermoelectric properties. However, it is difficult to fabricate a van der Waals heterostructure of 2D materials that can provide a sufficient temperature gradient while also forming carrier paths across the vertical heterojunction. Here, a heterojunction network structure constructed of highly conductive sub-20-nm graphene nanoribbons (GNRs) arrays stacked on a semiconducting molybdenum disulfide (MoS2) monolayer is suggested to maximize the heterojunction effect on carrier transport. This heterojunction network allows the carriers inevitably pass back and forth between the GNR and the MoS2 through the vertical heterojunction, effectively utilizing the interfacial properties in thermoelectricity. This structure also can modify the band structure by controlling the linewidth of the nanoribbons, or introduce an interlayer at the heterojunctions to enhance the tunneling effect between the two layers, thus significantly improved thermoelectric properties are achieved such as enhanced electrical conductivity of 700 S m(-1) and a high power factor of 222 mu W m(-1) K-1. English WILEY THERMAL-CONDUCTIVITY GRAPHENE NANOMESHES BORON-NITRIDE LARGE-AREA MOS2 PHOTOLUMINESCENCE HETEROSTRUCTURES FIELD Fabrication of a MoS2/Graphene Nanoribbon Heterojunction Network for Improved Thermoelectric Properties Article 10.1002/admi.201901333 1 ADVANCED MATERIALS INTERFACES, v.6, no.23 ADVANCED MATERIALS INTERFACES 6 23 scie scopus 000494100500001 2-s2.0-85076294973 Chemistry, Multidisciplinary Materials Science, Multidisciplinary Chemistry Materials Science Article THERMAL-CONDUCTIVITY GRAPHENE NANOMESHES BORON-NITRIDE LARGE-AREA MOS2 PHOTOLUMINESCENCE HETEROSTRUCTURES FIELD 2D materials graphene nanoribbon heterojunction network heterostructure thermoelectric property