title: Thermally Stable Silver Nanowires-Embedding Metal Oxide for Schottky Junction Solar Cells.
abstract: Thermally stable silver nanowires (AgNWs)-embedding metal oxide was applied for Schottky junction solar cells without an intentional doping process in Si. A large scale (100 mm(2)) Schottky solar cell showed a power conversion efficiency of 6.1% under standard illumination, and 8.3% under diffused illumination conditions which is the highest efficiency for AgNWs-involved Schottky junction Si solar cells. Indium-tin-oxide (ITO)-capped AgNWs showed excellent thermal stability with no deformation at 500 °C. The top ITO layer grew in a cylindrical shape along the AgNWs, forming a teardrop shape. The design of ITO/AgNWs/ITO layers is optically beneficial because the AgNWs generate plasmonic photons, due to the AgNWs. Electrical investigations were performed by Mott-Schottky and impedance spectroscopy to reveal the formation of a single space charge region at the interface between Si and AgNWs-embedding ITO layer. We propose a route to design the thermally stable AgNWs for photoelectric device applications with investigation of the optical and electrical aspects.
authors.affiliation: Photoelectric and Energy Device Application Lab (PEDAL) and Department of Electrical Engineering, Incheon National University , 119 Academy Road Yeonsu, Incheon 406772, Republic of Korea.
authors.forename: Hong-Sik
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Photoelectric and Energy Device Application Lab (PEDAL) and Department of Electrical Engineering, Incheon National University , 119 Academy Road Yeonsu, Incheon 406772, Republic of Korea.
authors.forename: Malkeshkumar
authors.initials: M
authors.lastname: Patel
authors.affiliation: Applied Device and Material Lab., Device Technology Division, Korea Advanced Nano Fab Center (KANC) , Suwon 443270, Republic of Korea.
authors.forename: Hyeong-Ho
authors.initials: HH
authors.lastname: Park
authors.affiliation: Solar Research and Development Center, Pandit Deendayal Petroleum University , Gandhinagar 382007, Gujarat, India.
authors.forename: Abhijit
authors.initials: A
authors.lastname: Ray
authors.affiliation: Applied Optics and Energy Research Group, Korea Institute of Industrial Technology , Gwangju 500480, Republic of Korea.
authors.forename: Chaehwan
authors.initials: C
authors.lastname: Jeong
authors.affiliation: Photoelectric and Energy Device Application Lab (PEDAL) and Department of Electrical Engineering, Incheon National University , 119 Academy Road Yeonsu, Incheon 406772, Republic of Korea.
authors.forename: Joondong
authors.initials: J
authors.lastname: Kim
keywords: Schottky junction; impedance spectroscopy; metal oxide; solar cells; surface plasmon; thermal stable AgNWs; transparent conductor