Data in Brief 12 (2017) 42–45

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Data Article

Statistical analyses on Si microwire solar cells Hong-Sik Kim, Joondong Kim n Photoelectric and Energy Device Applications Lab (PEDAL) and Department of Electrical Engineering, Incheon National University, 119 Academy Rd. Yeonsu, Incheon 406772, South Korea

a r t i c l e i n f o

abstract

Article history: Received 18 November 2016 Received in revised form 9 March 2017 Accepted 15 March 2017 Available online 21 March 2017

In this data, the statistical analyses of silicon microwire (SiMW) solar cells are presented for the research article entitled “Electrical and optical properties of Si microwire solar cells” (H.-S. Kim, D. B. Patel, H. Kim, M. Patel, K. R. Chauhan, W. Park, and J. Kim) [1]. This article shows the statistical analyses on performances of the various SiMW solar cells. The accuracy of solar cell parameters is discussed on the basis of data sets. & 2017 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

Keywords: Silicon Microwire solar cells Median value Absolute error

Specifications Table Subject area More specific subject area Type of data How data was acquired Data format Experimental factors Experimental features

n

Electrical Engineering Solar cells Figures Solar Cell I-V Test System (K3000, McScience) Raw, analyzed Each SiMW solar cell was measured 10 times with changing of contact points to observe the variations by contact positing. The error bars of SiMW solar cell parameters were determined.

DOI of original article: http://dx.doi.org/10.1016/j.solmat.2017.01.046 Corresponding author. E-mail address: [email protected] (J. Kim).

http://dx.doi.org/10.1016/j.dib.2017.03.030 2352-3409/& 2017 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

H.-S. Kim, J. Kim / Data in Brief 12 (2017) 42–45

Data source location Data accessibility

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Incheon National University, Incheon-406772, Korea The data are with this article

Value of the data

 The data presents the variations of solar cell parameters with the statistical analyses.  The variations of solar cell performances were measured by changing of contact positions.  The data is useful to analyze the accurate solar cell performances by error bars.

1. Data The datasets were acquired from the each SiMW solar cell. The repeating measurements (10 times) were performed on each solar cell to provide the accuracy of parameters. The measurement was obtained by an interval time of 1 min by changing of contact position. The accuracy of data is given for the open circuit voltage (Voc) for Fig. 1, short-circuit current ( Jsc) for Fig. 2, fill-factor (FF) values for Fig. 3, and overall efficiency (n) values for Fig. 4. The error bars are marked in each data figure. The overall accuracy of measurement is summarized in Table 1.

Fig. 1. The variation of Voc. Each bar represents the median value of each solar cell. The remarked line denotes the absolute error range.

Fig. 2. The variation of Jsc. Each bar represents the median value of each solar cell. The remarked line denotes the absolute error range.

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H.-S. Kim, J. Kim / Data in Brief 12 (2017) 42–45

Fig. 3. The variation of FF. Each bar represents the median value of each solar cell. The remarked line denotes the absolute error range.

Fig. 4. The variation of n. Each bar represents the median value of each solar cell. The remarked line denotes the absolute error range.

Table 1 Solar cell parameters with error bar distributed among the median values.

Pillar-1 Pillar-2 Pillar-3 Pillar-4 Flat-Si

Voc (mV)

Jsc (mA/cm2)

FF (%)

η (%)

606.65 71.25 601.067 1.24 587.647 0.46 600.99 7 0.61 549.36 70.84

35.871 70.256 33.8747 0.104 33.8237 0.115 35.6027 0.115 24.5117 0.127

73.785 7 0.383 74.179 70.155 74.8487 0.241 74.9917 0.169 73.6117 0.182

16.067 0.16 15.107 0.09 14.88 70.10 16.05 70.05 9.90 7 0.07

2. Experimental design, materials and methods 2.1. Measurements Four different shapes of microscale Si structures were fabricated for solar cells [1]. For the statistical analyses, each SiMW was measured by 10 times under one-sun illumination condition by using a solar simulator (K3000, McScience). The performances of solar cells (Voc, Jsc, FF, and n) values were obtained by different contact position. Repeating of 10 times, the obtained data was calculated

H.-S. Kim, J. Kim / Data in Brief 12 (2017) 42–45

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in terms of the median value and the absolute error. These statistical analyses may provide a scheme of the accuracy for solar cell performances. Median value ¼ ðMax: value–Min: valueÞ=2 Absolute error ¼ Real value  Approximate value

Acknowledgments The authors acknowledge the financial support of the Korea Institute of Energy Technology Evaluation and Planning by the Ministry of Knowledge Economy (KETEP-20133030011000) and Basic Science Research Program through the National Research Foundation (NRF) of Korea by the Ministry of Education (NRF-2015R1D1A1A01059165).

Transparency document. Supplementary material Transparency data associated with this article can be found in the online version at http://dx.doi. org/10.1016/j.dib.2017.03.030.

Reference [1] Hong-Sik Kim, Dipal B. Patel, Hyunyub Kim, Malkeshkumar Patel, Khushbu R. Chauhan, Wanghee Park, Joondong Kim, Electrical and optical properties of Si microwire solar cells, Sol. Energy Mater. Sol. Cells 164 (2017) 7–12.

Statistical analyses on Si microwire solar cells.

In this data, the statistical analyses of silicon microwire (SiMW) solar cells are presented for the research article entitled "Electrical and optical...
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