Title :
Power conversion efficiency enhancement of polymer solar cells by incorporation of gold nanoparticles
Author :
Ng, Annie ; Surya, Charles ; Wai Kin Yiu ; Djurisic, Aleksandra
Author_Institution :
Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon, China
Abstract :
We have performed the incorporation of gold nanoparticles (AuNPs) with different concentration and morphology into anode buffer layer of poly [[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b´] dithiophene -2, 6-diyl] [3-fluoro-2- [(2-ethylhexy) carbonyl] thieno [3,4-b]thiophened iyl]] (PTB7): [6,6]-Phenyl C71 butyric acid methyl ester (PC71BM) based solar cell. Under optimized conditions, the power conversion efficiency (PCE) can be enhanced from 7.5 % (without AuNPs) to 8.1 % (with AuNPs), which is mainly attributed to the absorption enhancement in the range of 400-650 nm. The solar cells incorporated with pointy-edge AuNPs such as nanocubes show more significant improvement in the photovoltaic performance.
Keywords :
absorption; electrochemical electrodes; gold; nanoparticles; polymers; solar cells; Au; PCE enhancement; Power Conversion Efficiency Enhancement; absorption enhancement; anode buffer layer; gold nanoparticle; photovoltaic performance improvement; polymer solar cell; Fabrication; Glass; Gold; Indium tin oxide; Nanoparticles; Nanoscale devices; Photovoltaic systems; gold nanoparticles; plasmonic effect; polymer solar cells;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2014 IEEE International Conference on
DOI :
10.1109/EDSSC.2014.7061100
