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

Hyunyub Kim; Joondong Kim; Eunsongyi Lee; Dong Wook Kim; Ju Hyung Yun; Junsin Yi

doi:10.1063/1.4804581

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

Hyunyub Kim, Joondong Kim, Eunsongyi Lee, Dong Wook Kim, Ju Hyung Yun, Junsin Yi

Department of Physics

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

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 V_oc 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.

Original language	English
Article number	193904
Journal	Applied Physics Letters
Volume	102
Issue number	19
DOIs	https://doi.org/10.1063/1.4804581
State	Published - 13 May 2013

Bibliographical note

Funding Information:
The authors acknowledge the financial support of the Korea Institute of Energy Technology Evaluation and Planning grant funded by the Ministry of Knowledge and Economy (KETEP-20113030010110) and the Converging Research Center Program through the Ministry of Education, Science and Technology (MEST, 2012K001278).

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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.",

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AU - Kim, Hyunyub

AU - Kim, Joondong

AU - Lee, Eunsongyi

AU - Kim, Dong Wook

AU - Yun, Ju Hyung

AU - Yi, Junsin

N1 - Funding Information: The authors acknowledge the financial support of the Korea Institute of Energy Technology Evaluation and Planning grant funded by the Ministry of Knowledge and Economy (KETEP-20113030010110) and the Converging Research Center Program through the Ministry of Education, Science and Technology (MEST, 2012K001278).

PY - 2013/5/13

Y1 - 2013/5/13

N2 - 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.

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

Abstract

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