1 Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, China;
2 Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA;
3 School of New Energy Science and Engineering, Xinyu University, Xinyu 338004, China
Enhancing optical and electrical performances is effective in improving power conversion efficiency of photovoltaic devices. Here, gold and silver dual nanoparticles were imported and embedded in the hole transport layer of perovskite solar cells. Due to the cooperative localized surface plasmon resonance of these two kinds of metal nanostructures, light harvest of perovskite material layer and the electrical performance of device were improved, which finally upgraded short circuit current density by 10.0%, and helped to increase power conversion efficiency from 10.4% to 11.6% under AM 1.5G illumination with intensity of 100 mW/cm2. In addition, we explored the influence of silver and gold nanoparticles on charge carrier generation, dissociation, recombination, and transportation inside perovskite solar cells.
(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
Fund:
Project supported by the National Natural Science Foundation of China (Grant Nos. 61306080, 51203192, 11334014, and 51664047), the Natural Science Foundation of Hunan Province, China (Grant No. 2015JJ3143), and the Scientific and Technological Project of Hunan Provincial Development and Reform Commission, China.
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