title: Nanoparticle-coated n-ZnO/p-Si photodiodes with improved photoresponsivities and acceptance angles for potential solar cell applications.
abstract: In this work, n-ZnO/p-Si photodiodes were fabricated and characterized to explore their potential applications in solar cells. With a coating of silica nanoparticles, we observed the enhancement of photoresponsivity and acceptance angle at a wavelength between 400 and 650 nm. The 17.6% increase of the photoresponsivity over the conventional device is due to the improved optical transmission toward the semiconductor through the silica nanoparticles. Furthermore, the acceptance angle of the nanoparticle coated device is dramatically increased, which is attributed to the effect of Bragg diffraction.
authors.affiliation: Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 1, Roosevelt Road, Section 4 Taipei 106, Taiwan.
authors.forename: Cheng-Pin
authors.initials: CP
authors.lastname: Chen
authors.forename: Pei-Hsuan
authors.initials: PH
authors.lastname: Lin
authors.forename: Liang-Yi
authors.initials: LY
authors.lastname: Chen
authors.forename: Min-Yung
authors.initials: MY
authors.lastname: Ke
authors.forename: Yun-Wei
authors.initials: YW
authors.lastname: Cheng
authors.forename: JianJang
authors.initials: J
authors.lastname: Huang
mesh_terms: D003460:Crystallization / Q000379:methods*; D011211:Electric Power Supplies; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D008029:Lighting / Q000295:instrumentation*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure; D036103:Nanotechnology / Q000295:instrumentation*; D010316:Particle Size; D012666:Semiconductors; D012825:Silicon / Q000737:chemistry* / Q000528:radiation effects; D013499:Surface Properties; D015034:Zinc Oxide / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D046911:Macromolecular Substances; D015034:Zinc Oxide; D012825:Silicon