Nam, Woo Hyun Kim, Bo Bae Seo, Seul Gi Lim, Young Soo Kim, Jong-Young Seo, Won-Seon Choi, Won Kook Park, Hyung-Ho Lee, Jeong Yong 2024-01-20T09:01:44Z 2024-01-20T09:01:44Z 2022-01-25 2014-09 1530-6984 https://pubs.kist.re.kr/handle/201004/126373 ZnO, a wide bandgap semiconductor, has attracted much attention due to its multifunctionality, such as transparent conducting oxide, light-emitting diode, photocatalyst, and so on. To improve its performances in the versatile applications, numerous hybrid strategies of ZnO with graphene have been attempted, and various synergistic effects have been achieved in the ZnOgraphene hybrid nanostructures. Here we report extraordinary charge transport behavior in Al-doped ZnO (AZO)-reduced graphene oxide (RGO) nanocomposites. Although the most challenging issue in semiconductor nanocomposites is their low mobilities, the AZO-RGO nanocomposites exhibit single crystal-like Hall mobility despite the large quantity of nanograin boundaries, which hinder the electron transport by the scattering with trapped charges. Because of the significantly weakened grain boundary barrier and the proper band alignment between the AZO and RGO, freely conducting electrons across the nanograin boundaries can be realized in the nanocomposites. This discovery of the structurally nanocrystalline-electrically single crystalline composite demonstrates a new route for enhancing the electrical properties in nanocomposites based on the hybrid strategy. English AMER CHEMICAL SOC Structurally Nanocrystalline-Electrically Single Crystalline ZnO-Reduced Graphene Oxide Composites Article 10.1021/nl5018089 1 NANO LETTERS, v.14, no.9, pp.5104 - 5109 NANO LETTERS 14 9 5104 5109 N scie scopus 000341544500028 2-s2.0-84914140174 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article DOPED ZINC-OXIDE THIN-FILM THERMOELECTRIC PROPERTIES PHOTOCATALYTIC DEGRADATION ELECTRON-MOBILITY QUANTUM DOTS TRANSPORT SAPPHIRE NANOSTRUCTURES TRANSISTOR ZnO reduced graphene oxide nanocomposite charge transport mobility