Properties of Perovskite Solar Cells by the Sputtered Compact TiO2 Layer
- Authors
- Shin, Seong Gwan; Bark, Chung Wung; Kim, Sang Mo; Choi, Hyung Wook
- Issue Date
- Sep-2017
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- FTS System; Compact TiO2 Layer; Perovskite Solar Cell
- Citation
- SCIENCE OF ADVANCED MATERIALS, v.9, no.9, pp.1517 - 1521
- Journal Title
- SCIENCE OF ADVANCED MATERIALS
- Volume
- 9
- Number
- 9
- Start Page
- 1517
- End Page
- 1521
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/5801
- DOI
- 10.1166/sam.2017.3162
- ISSN
- 1947-2935
- Abstract
- Lead halide perovskite is an excellent candidate for use as a light harvester in solar cells. The perovskite (CH3NH3)PbX3 (X = halogens) structure consists of organic components in a cuboctahedral structure and inorganic components in an octahedral structure. Overall, the material exhibits the chemical properties of the organic component. Thus, we fabricated solid-state hybrid organic-inorganic solar cells comprising a layered structure of nanoparticulate titania, an organometallic halide perovskite, and spiro-OMeTAD as a hole transporter. In this work, uniform, compact TiO2 layers were prepared by a facing target sputtering system using a Ti target. The structure, morphology, chemical composition, and conductivity of the prepared material are compared to those of TiO2 prepared by conventional methods. The cell exhibited a maximum unit cell efficiency of 12.84%, short-circuit current of 24.24 mA/cm(2), fill factor of 49.51, and open-circuit voltage of 0.85 V. The light-to-electric-energy conversion efficiency of various solar cells with perovskite photoelectrodes was determined by irradiation with 100-mW/cm(2) simulated solar light.
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