Title :
Increased efficiency with surface texturing in ITO/InP solar cells
Author :
Jenkins, P. ; Landis, G.A. ; Fatemi, N. ; Li, X. ; Scheiman, D. ; Bailey, S.
Author_Institution :
Sverdrup Technol., Brook Park, OH, USA
Abstract :
Optimization of an InP solar cell with a V-grooved surface is discussed. Total internal reflection in the coverglass reduces surface reflection and can recover light reflected from the front metallization. An analysis of the light-trapping effects of low-angle V-grooves on InP solar cells shows improvement in both Jsc and fill factor. Efficiency can be increased by 6.74% with proper attention to grid design. The effect of the grooves reduces the need for an optimum antireflection coating and high aspect ratio contacts. Results from the first indium-tin oxide (ITO)/InP solar cells on low-angle V-grooved substrates are presented, showing a 5.8% increase in current. No deleterious effects were noted in the junction formation due to the grooves.<>
Keywords :
III-V semiconductors; etching; indium compounds; light reflection; metallisation; solar cells; surface texture; tin compounds; ITO/InP solar cells; InP solar cell; InSnO-InP; V-grooved surface; antireflection coating; coverglass; current; efficiency; etching; fill factor; front metallization; grid design; high aspect ratio contacts; junction formation; light-trapping effects; low-angle V-grooves; optimisation; surface reflection; surface texturing; total internal reflection; Coatings; Fingers; Indium phosphide; Indium tin oxide; Large Hadron Collider; Metallization; Optical reflection; Photovoltaic cells; Reflectivity; Surface texture;
Conference_Titel :
Indium Phosphide and Related Materials, 1992., Fourth International Conference on
Conference_Location :
Newport, RI, USA
Print_ISBN :
0-7803-0522-1
DOI :
10.1109/ICIPRM.1992.235646
