Journal
MATERIALS LETTERS
Volume 193, Issue -, Pages 288-291Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2017.02.008
Keywords
Nanoparticles; Solar Energy Materials; Plasmonic; LSPR; Broadband absorption; DSSCs
Funding
- Science and Engineering Research Board, India [SR/FT/CS-164/2011]
- Ministry of New and Renewable Energy (MNRE), India
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Plasmonic silver nanoparticles of varied shapes and sizes (v-AgNPs) were synthesized via facile one-pot chemical reduction method and investigated their applicability in dye sensitized solar cells (DSSCs). The synthesized v-AgNPs exhibit broadband absorption over entire visible region owing to their unique localized surface plasmon resonance (LSPR). The photon conversion efficiency (PCE) of DSSCs increased similar to 50% by incorporating similar to 1 wt% of v-AgNPs in similar to 4 ttm thin reference photoanode. The enhancement is mainly due to increase in light harvesting ability of plasmonic photoanode as a result of local electromagnetic field enhancement and strong near field scattering effect of v-AgNPs. In addition, the reduction in charge transfer resistance value (R-2) further confirms the high charge carrier generation in plasmonic DSSCs. (C) 2017 Elsevier B.V. All rights reserved.
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