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Fabrication and Analysis of Perovskite Solar Cells (PSCs) by Using Phosphor and TiO2 Photoelectrode

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In this work, to explore the influence of phosphor additives on the conversion efficiency of perovskite solar cells (PSC), we introduce a Y3Al5O12:Ce3+ (YAG:Ce3+) phosphor layer. The YAG:Ce3+ nanophosphor acts as a light down-converting material to absorb high energy photons and emit lower energy photons that match well with the absorption of the perovskite layer, yielding more excited photo-generated electron–hole pairs. Therefore, the incident solar light can be harvested more effectively. We used 8 mg/ml of TiO2 mixed with YAG:Ce3+ in the PSCs and realized a light-to-electric energy conversion efficiency of 13.34%, a short circuit current density of 21.23 mA/cm2, an open circuit voltage of 0.97 V, and a FF of 55.96%. Higher efficiencies were achieved for PSCs with phosphor-mixed TiO2 than for cells with pure TiO2 nanoparticles. The samples were characterized by XRD, SEM, UV-vis, PL, and IV-curves. Photoelectrode DSSC with light-to-electric energy conversion efficiency was achieved under a simulated solar light irradiation of 100 mW/cm2 (AM 1.5).
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Keywords: Mesoporous TiO2; Perovskite Solar Cell (PSC); Phosphor; YAG:Ce3+

Document Type: Research Article

Affiliations: Department of Electrical Engineering, Gachon University, 1342 Seongnam-Daero, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do, 13120, Republic of Korea

Publication date: March 1, 2019

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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