Synergistic effect of surface plasmonic particles in PbS/TiO2 heterojunction solar cells

被引:9
作者
Ding, Bo [1 ]
Gao, Tongchuan [2 ]
Wang, Yang [3 ]
Waldeck, David H. [3 ]
Leu, Paul W. [2 ]
Lee, Jung-Kun [1 ]
机构
[1] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA
[2] Univ Pittsburgh, Dept Ind Engn, Pittsburgh, PA 15261 USA
[3] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA
基金
美国国家科学基金会;
关键词
Surface plasmons; Core-shell particles; Thin film solar cells; PbS; COLLOIDAL QUANTUM DOTS; SHELL PARTICLES; FANO-RESONANCE; NANOCRYSTALS; ENHANCEMENT; PBSE; NANOPARTICLES; PERFORMANCE; GENERATION; CONVERSION;
D O I
10.1016/j.solmat.2014.06.001
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Core-shell particles composed of a dielectric core and a metallic nanoshell exhibit tunable surface plasmons that may be exploited to enhance the light absorption capability of photoactive materials. This work uses both experimental and theoretical methods to elucidate the mechanism by which SiO2@Au@SiO2 (SGS) core-shell-shell particles improve the light harvesting efficiency of PbS-TiO2 heterojunction solar cells. The enhanced light absorption by PbS nanoparticles depends on their location in the device and their impact on device morphology. This study demonstrates that SGSs can promote the light harvesting of thin film solar cells in two ways. First, the localized surface plasmon resonance of the SGSs increases light scattering and the local electromagnetic field at the PbS-SGS interface. Second, placing SGSs between the PbS and TiO2 layers, forms nanodomes on top Au electrode and gives rise to additional light scattering that enhances the light harvesting efficiency. By combining these effects the short circuit current density and the energy conversion efficiency are increased by 29% and 24% respectively compared to a cell without SGSs. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:386 / 393
页数:8
相关论文
共 54 条
[51]   Enhancement of Donor-Acceptor Polymer Bulk Heterojunction Solar Cell Power Conversion Efficiencies by Addition of Au Nanoparticles [J].
Wang, Dong Hwan ;
Kim, Do Youb ;
Choi, Kyeong Woo ;
Seo, Jung Hwa ;
Im, Sang Hyuk ;
Park, Jong Hyeok ;
Park, O. Ok ;
Heeger, Alan J. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2011, 50 (24) :5519-5523
[52]   Nanorice: A hybrid plasmonic nanostructure [J].
Wang, H ;
Brandl, DW ;
Le, F ;
Nordlander, P ;
Halas, NJ .
NANO LETTERS, 2006, 6 (04) :827-832
[53]   Symmetry breaking in individual plasmonic nanoparticles [J].
Wang, Hui ;
Wu, Yanpeng ;
Lassiter, Britt ;
Nehl, Colleen L. ;
Hafner, Jason H. ;
Nordlander, Peter ;
Halas, Naomi J. .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2006, 103 (29) :10856-10860
[54]   Determination of the electron lifetime in nanocrystalline dye solar cells by open-circuit voltage decay measurements [J].
Zaban, A ;
Greenshtein, M ;
Bisquert, J .
CHEMPHYSCHEM, 2003, 4 (08) :859-864