Title :
Hybrid solar cells using GaAs nanopillars
Author :
Laghumavarapu, R.B. ; Mariani, G. ; De Villers, B. Tremolet ; Shapiro, J. ; Senanayake, P. ; Lin, A. ; Schwartz, B.J. ; Huffaker, D.L.
Author_Institution :
Electr. Eng. Dept., Univ. of California at Los Angeles, Los Angeles, CA, USA
Abstract :
Light conversion and carrier transport in hybrid solar cells fabricated by spin coating poly(3-hexylthiophene) (P3HT) on ordered n-GaAs nanopillars are studied via electrical and optical characterization. The performance of hybrid nanopillar/P3HT solar cells is compared to control cells having either only P3HT or only GaAs nanopilllars. The hybrid devices show better performance, with a Voc, Jsc and FF of 0.2 V, 8.7 mA/cm2 and 32% respectively. Efficient exciton dissociation at the P3HT/GaAs interface was confirmed by PL quenching measurements.
Keywords :
electric properties; gallium arsenide; nanostructured materials; optical properties; organic-inorganic hybrid materials; photoluminescence; radiation quenching; solar cells; spin coating; GaAs; P3HT; carrier transport; electrical characterization; hybrid solar cell; light conversion; nanopillars; optical characterization; photoluminescence quenching; poly(3-hexylthiophene); spin coating; Excitons; Gallium arsenide; Indium tin oxide; Nanoscale devices; Photovoltaic cells; Plastics; Substrates;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2010 35th IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-5890-5
DOI :
10.1109/PVSC.2010.5614637