title: Self-assembly of graphenelike ZnO superstructured nanosheets and their application in hybrid photoconductors.
abstract: Photoconductors require high charge-carrier mobilities, sensitivity over a wide range of light levels, and good stability. Combining an organic semiconductor with environmentally benign inorganic nanoparticles is a rational means to develop photoconductors with such properties. However, an inhomogeneous distribution of nanoparticles in the active layer restricts both charge-carrier mobility and charge collection at an electrode. In this paper, ultrathin ZnO superstructured nanosheets are successfully synthesized by a solvothermal method. Time-dependent investigations show that the superstructured nanosheets assemble in solution during the growth process. Given that high-quality ZnO nanosheets are obtained, a hybrid photoconductor device with P3HT is fabricated and investigated. Sensitivity above 200% under simulated sunlight is obtained with good air stability. This study demonstrates a general approach to design photoconductors using hybrid nanomaterials.
authors: National Center for Nanoscience and Technology, Beijing, 100190, P.R. China.
authors: Han
authors: H
authors: Yan
authors: Zai
authors: Z
authors: Yu
authors: Kun
authors: K
authors: Lu
authors: Yajie
authors: Y
authors: Zhang
authors: Zhixiang
authors: Z
authors: Wei
mesh_terms: D006108:Graphite / Q000737:chemistry*; D008027:Light; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000295:instrumentation*; D016566:Organoselenium Compounds / Q000737:chemistry; D012666:Semiconductors; D013997:Time Factors; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D016566:Organoselenium Compounds; C526212:poly(3-hexyl)selenophene; D006108:Graphite; D015034:Zinc Oxide