Title :
Morphology dependence of silicon nanostructure/organic polymer solar cell
Author :
Tzu-Ching Lin ; Subramani, Thiyagu ; Hong-Jhang Syu ; Chen-Chih Hsueh ; Chien-Ting Liu ; Uma, K. ; Ching-Fuh Lin
Author_Institution :
Grad. Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
Si nanohole and nanowire/organic polymer solar cell is fabricated by low temperature and simple spin-coating method. The results show that the nanohole device performance is better than that of nanowire device. The Si nanohole device has higher external quantum efficiency in all wavelengths. The reason for the enhancement is analyzed from optical reflectance and the observation between Si nanohole and PEDOT:PSS interface. With nanohole structure, the short-circuit current density is increased from 22.1 to 26.9 mA/cm2 (22% increase), and the power conversion efficiency is enhanced from 7.4% to 8.0%. Nanohole structure is promising for high-efficiency Si/organic polymer solar cell.
Keywords :
current density; elemental semiconductors; nanowires; organic semiconductors; polymer blends; silicon; solar cells; spin coating; PEDOT:PSS interface; Si; Si nanohole device; morphology dependence; nanohole device performance; nanohole structure; nanowire device; nanowire-organic polymer solar cell; optical reflectance; power conversion efficiency; quantum efficiency; short-circuit current density; spin-coating method; Nanoscale devices; Nanostructures; Optical device fabrication; Photovoltaic cells; Polymers; Reflectivity; Silicon; hybrid junctions; organic semiconductors; photovoltaic cells; polymers; semiconductor nanostructures; silicon; solar energy;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th
Conference_Location :
Tampa, FL
DOI :
10.1109/PVSC.2013.6744323
