TITLE

Effect of the short collection length in silicon microscale wire solar cells

AUTHOR(S)
Kim, Hyunyub; Kim, Joondong; Lee, Eunsongyi; Kim, Dong-Wook; Yun, Ju-Hyung; Yi, Junsin
PUB. DATE
May 2013
SOURCE
Applied Physics Letters;5/13/2013, Vol. 102 Issue 19, p193904
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Electrical and optical properties of silicon microscale wire (SiMW) solar cells were investigated. Diverse designs were applied for SiMW geometries as light absorbers. Finite-difference time-domain simulation shows a focused optical field in the wires inducing an optical absorption enhancement in SiMW solar cells. SiMW solar cells provided remarkably higher Voc values (0.597-0.61 V) than that of the planar solar cell (0.587 V). As for the electrical aspects, the position of the space charge region in a SiMW directly affects the carrier collection efficiency according to the SiMW diameter and significantly modulates the photogenerated-currents and voltages in solar cells.
ACCESSION #
87655987

 

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