journal article·2019-05-28

Indepth Studies on Working Mechanism of Plasmon-Enhanced Inverted Perovskite Solar Cells Incorporated with Ag@SiO2 Core–Shell Nanocubes

Xiaoqian Ma, Ben Ma, Tianyan Yu, Xin Xu, Liuquan Zhang, Wei Wang, Kun Cao, Lingling Deng, Shufen Chen, Wei Huang

ACS Applied Energy Materials· Volume 2· Issue 5
Publisher page

Abstract

Noble metal nanoparticles-induced localized surface plasmon resonance as a useful approach has been widely used in solar cells including perovskite solar cells (PSCs) to improve their light-harvesting. Herein, we synthesize Ag@SiO2 core–shell nanocubes and investigate their application in CH3NH3PbI3-based PSCs due to both the large local EM field induced by the nanocube with sharp corners and the effective avoidance of exciton/carrier recombination at the surfaces of Ag nanocubes via covering a ∼5 nm ultrathin SiO2 shell. Incorporating an appropriate concentration of Ag@SiO2 nanocubes into the CH3NH3PbI3 PSCs realizes a best-performing efficiency of 17.22% with an enhancement factor of 18.1%. Indepth studies on the plasmon-enhanced working mechanism of Ag@SiO2 nanocubes with UV–vis absorption spectra, steady-state and time-resolved transient photoluminescence, and electrochemical impedance spectroscopy characterizations eventually demonstrate both the increasing light harvesting and the improving charge transportation and extraction contribute to better performances of PSCs.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Chalcogenide Semiconductor Thin Films

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory for Organic Electronics and Information Displays and Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing 210023, China

College of Electronic and Optical Engineering and College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China

Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, Shaanxi China

Funding

Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Jiangsu Province · Jilin University · National Natural Science Foundation of China · National Foundation for Science and Technology Development of China · Priority Academic Program Development of Jiangsu Higher Education Institutions · National Postdoctoral Program for Innovative Talents · Distinguished Young Scholars of Jiangsu Province of China · National Major Fundamental Research Program of China

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