Chin. Phys. Lett.  2017, Vol. 34 Issue (9): 096801    DOI: 10.1088/0256-307X/34/9/096801
Fluorescence Enhancement of Metal-Capped Perovskite CH$_{3}$NH$_{3}$PbI$_{3}$ Thin Films
Peng Sun1,2, Wei-Wei Yu2, Xiao-Hang Pan2, Wei Wei2, Yan Sun2**, Ning-Yi Yuan1**, Jian-Ning Ding1, Wen-Chao Zhao2, Xin Chen2, Ning Dai2
1School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou 213164
2National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083
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Abstract We fabricate nano-structural metal films to improve photoluminescence of perovskite films. When the perovskite film is placed on an ammonia-treated alumina film, stronger photoluminescence is found due to local field enhancement effects. In addition, the oxide spacer layer between the metal (e.g., Al, Ag and Au) substrate and the perovskite film plays an important role. The simulations and experiments imply that the enhancement is related to surface plasmons of nano-structural metals.
Received: 27 March 2017      Published: 15 August 2017
PACS:  68.37.-d (Microscopy of surfaces, interfaces, and thin films)  
  73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))  
  78.55.-m (Photoluminescence, properties and materials)  
Fund: Supported by the Ministry of Science and Technology of China under Grant No 2016YFA0202201, the National Natural Science Foundation of China under Grant Nos 61290304, 11574335 and 61376016, the Youth Innovation Promotion Association of the Chinese Academy of Sciences, and the 333 Project of Jiangsu province under Grant No BRA2017352.
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Peng Sun, Wei-Wei Yu, Xiao-Hang Pan et al  2017 Chin. Phys. Lett. 34 096801
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Peng Sun
Wei-Wei Yu
Xiao-Hang Pan
Wei Wei
Yan Sun
Ning-Yi Yuan
Jian-Ning Ding
Wen-Chao Zhao
Xin Chen
Ning Dai
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