title: Electrical transport characterization of PEDOT:PSS/n-Si Schottky diodes and their applications in solar cells.
abstract: We demonstrate locally contacted PEDOT:PSS Schottky diodes with excellent rectifying behavior, fabricated on n-type Si substrates using a spin-coating process and a reactive-ion etching process. Electrical transport characterizations of these Schottky diodes were investigated by both current-voltage (I-V) and capacitance-voltage (C-V) measurements. We found that these devices exhibit excellent modulation in the current with an on/off ratio of - 10(6). Schottky junction solar cells composed of PEDOT:PSS and n-Si structures were also examined. From the current density-voltage (J-V) measurement of a solar cell under illumination, the short circuit current (I(sc)), open circuit voltage (V(oc)), and conversion efficiency (eta) were - 19.7 mA/cm2, - 578.5 mV, and - 6.5%, respectively. The simple and low-cost fabrication process of the PEDOT:PSS/n-Si Schottky junctions makes them a promising candidate for further high performance solar cell applications.
authors.forename: Zagarzusem
authors.initials: Z
authors.lastname: Khurelbaatar
authors.forename: Jung-Hwan
authors.initials: JH
authors.lastname: Hyung
authors.forename: Gil-Sung
authors.initials: GS
authors.lastname: Kim
authors.forename: No-Won
authors.initials: NW
authors.lastname: Park
authors.forename: Kyu-Hwan
authors.initials: KH
authors.lastname: Shim
authors.forename: Sang-Kwon
authors.initials: SK
authors.lastname: Lee
mesh_terms: D004553:Electric Conductivity; D011211:Electric Power Supplies; D004566:Electrodes; D004579:Electron Transport; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008422:Materials Testing; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000295:instrumentation; D010316:Particle Size; D011137:Polystyrenes / Q000737:chemistry*; D012666:Semiconductors; D012993:Solar Energy; D013876:Thiophenes / Q000737:chemistry*
chemical_list: D011137:Polystyrenes; D013876:Thiophenes; C533756:poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)