Enhanced efficiency for c-Si solar cell with nanopillar array via quantum dots layers.
Opt Express
; 19 Suppl 5: A1141-7, 2011 Sep 12.
Article
em En
| MEDLINE
| ID: mdl-21935257
ABSTRACT
The enhanced efficiency of the crystalline silicon (c-Si) solar cell with nanopillar arrays (NPAs) was demonstrated by deployment of CdS quantum dots (QDs). The NPAs was fabricated by the colloidal lithography and reactive-ion etching techniques. Under a simulated one-sun condition, the device with CdS QDs shows a 33% improvement of power conversion efficiency, compared with the one without QDs. For further investigation, the excitation spectrum of photoluminescence (PL), absorbance spectrum, current-voltage (I-V) characteristics, reflectance and external quantum efficiency of the device was measured and analyzed. It is noteworthy that the enhancement of efficiency could be attributed to the photon down-conversion, the antireflection, and the improved electrical property.
Texto completo:
1
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article