Near-field light concentration of ultra-small metallic nanoparticles for absorption enhancement in a-Si solar cells

2013 ◽  
Vol 102 (9) ◽  
pp. 093107 ◽  
Author(s):  
Boyuan Cai ◽  
Baohua Jia ◽  
Zhengrong Shi ◽  
Min Gu
Keyword(s):  
Solar Cells ◽  
Metallic Nanoparticles ◽  
Near Field ◽  
Absorption Enhancement ◽  
Si Solar Cells ◽  
Light Concentration

Double AAO nanogratings for broad spectrum absorption enhancement in thin film Si solar cells

2015 ◽  
Vol 75 ◽  
pp. 93-98 ◽  
Author(s):  
F.F. Qin ◽  
H.M. Zhang ◽  
C.X. Wang ◽  
J.J. Zhang ◽  
C. Guo
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Broad Spectrum ◽  
Absorption Enhancement ◽  
Si Solar Cells

Effect of spherical metallic nanoparticles in active layer on absorption enhancement in organic solar cells

2017 ◽  
Vol 7 (04) ◽  
pp. 1 ◽  
Author(s):  
Ming Chen ◽  
Yanxia Cui ◽  
Ye Zhang ◽  
Ting Ji ◽  
Yuying Hao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Metallic Nanoparticles ◽  
Absorption Enhancement

scholarly journals Advancing colloidal quantum dot photovoltaic technology

Nanophotonics ◽  
2016 ◽  
Vol 5 (1) ◽  
pp. 31-54 ◽  
Author(s):  
Yan Cheng ◽  
Ebuka S. Arinze ◽  
Nathan Palmquist ◽  
Susanna M. Thon
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Light Trapping ◽  
Near Field ◽  
Nanoparticle Synthesis ◽  
Photon Absorption ◽  
Absorption Enhancement ◽  
Photovoltaic Technology ◽  
Carrier Extraction ◽  
Conversion Efficiencies

Abstract Colloidal quantum dots (CQDs) are attractive materials for solar cells due to their low cost, ease of fabrication and spectral tunability. Progress in CQD photovoltaic technology over the past decade has resulted in power conversion efficiencies approaching 10%. In this review, we give an overview of this progress, and discuss limiting mechanisms and paths for future improvement in CQD solar cell technology.We briefly summarize nanoparticle synthesis and film processing methods and evaluate the optoelectronic properties of CQD films, including the crucial role that surface ligands play in materials performance. We give an overview of device architecture engineering in CQD solar cells. The compromise between carrier extraction and photon absorption in CQD photovoltaics is analyzed along with different strategies for overcoming this trade-off. We then focus on recent advances in absorption enhancement through innovative device design and the use of nanophotonics. Several light-trapping schemes, which have resulted in large increases in cell photocurrent, are described in detail. In particular, integrating plasmonic elements into CQD devices has emerged as a promising approach to enhance photon absorption through both near-field coupling and far-field scattering effects. We also discuss strategies for overcoming the single junction efficiency limits in CQD solar cells, including tandem architectures, multiple exciton generation and hybrid materials schemes. Finally, we offer a perspective on future directions for the field and the most promising paths for achieving higher device efficiencies.

Robust Nanoscale Patterns for Thin Film Solar Cells Using Inverse Optimization of Nonuniformly Sampled Absorption Spectrum

2011 ◽  
Author(s):  
Shima Hajimirza ◽  
John R. Howell
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Near Field ◽  
Solar Spectrum ◽  
Sampling Technique ◽  
Optimization Techniques ◽  
Photon Absorption ◽  
Absorption Enhancement ◽  
Geometrical Parameters ◽  
Sensitivity Assessment

This paper outlines several techniques for systematic and efficient optimization as well as sensitivity assessment to fabrication tolerances of surface texturing patterns in thin film amorphous silicon (a-Si) solar cells. The aim is to achieve maximum absorption enhancement. We report the joint optimization of several geometrical parameters of a three dimensional lattice of periodic square silver nanoparticles, and an absorbing thin layer of a-Si, using constraint optimization tools and numerical FDTD simulations. Global and local optimization methods, such as the Broyden–Fletcher–Goldfarb–Shanno Quasi-Newton (BFGS-QN) and Simulated Annealing (SA) are employed concurrently for solving the inverse near field radiation problem. The design of the silver patterned solar panel is optimized to yield maximum average enhancement in photon absorption over the solar spectrum. The optimization techniques are expedited and improved by using a novel nonuniform adaptive spectral sampling technique. Furthermore, the sensitivity of the optimally designed parameters of the solar structure is analyzed by postulating a probabilistic model for the errors introduced in the fabrication process. Monte Carlo (MC) simulations and Unscented Transform (UT) techniques are used for this purpose.

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