An efficiency of 18.88% in selective emitter solar cells by metal pattern optimization

Dong Joon Oh; Ji Myung Shim; Kyeong Yeon Cho; Eun Joo Lee; Hyun Woo Lee; Jun Young Choi; Ji Sun Kim; Jeong Eun Shin; Ji Hyun Kong; Jae Keun Seo; Soo Hong Lee; Hae Seok Lee

doi:10.1109/PVSC.2011.6186391

An efficiency of 18.88% in selective emitter solar cells by metal pattern optimization

Dong Joon Oh, Ji Myung Shim, Kyeong Yeon Cho, Eun Joo Lee, Hyun Woo Lee, Jun Young Choi, Ji Sun Kim, Jeong Eun Shin, Ji Hyun Kong, Jae Keun Seo, Soo Hong Lee, Hae Seok Lee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

A high efficiency (η∼18.88 %) mono-crystalline Si solar cell (Area=15.6 × 15.6 cm ²) with a selective emitter structure used in the conventional diffusion process (POCl3) and the screen printed contact is presented in this paper. In particular, we focus on the improvement of fill factor (FF) by the front metal Ag portion and aspect ratio optimization. As a result, the front metal portion of 5.15% (printing thrice) represents the best in the FF of 77.68%. The fabricated solar cell with a selective emitter has the portion of high doping concentration (30 ohm/sq.) to just below the metal contact and the shallow emitter (80 ∼ 90 ohm/sq.) of the rest of contacts. As a result, our selective emitter solar cell is accomplished by the Eff 18.88% when the front metal portion of 5.15% is applied during its printing thrice.

Original language	English
Title of host publication	Program - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Pages	2189-2192
Number of pages	4
DOIs	https://doi.org/10.1109/PVSC.2011.6186391
Publication status	Published - 2011
Externally published	Yes
Event	37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States Duration: 2011 Jun 19 → 2011 Jun 24

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)	0160-8371

Other

Other	37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Country/Territory	United States
City	Seattle, WA
Period	11/6/19 → 11/6/24

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/PVSC.2011.6186391

Cite this

Oh, D. J., Shim, J. M., Cho, K. Y., Lee, E. J., Lee, H. W., Choi, J. Y., Kim, J. S., Shin, J. E., Kong, J. H., Seo, J. K., Lee, S. H., & Lee, H. S. (2011). An efficiency of 18.88% in selective emitter solar cells by metal pattern optimization. In Program - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011 (pp. 2189-2192). [6186391] (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2011.6186391

An efficiency of 18.88% in selective emitter solar cells by metal pattern optimization. / Oh, Dong Joon; Shim, Ji Myung; Cho, Kyeong Yeon et al.
Program - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011. 2011. p. 2189-2192 6186391 (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Oh, DJ, Shim, JM, Cho, KY, Lee, EJ, Lee, HW, Choi, JY, Kim, JS, Shin, JE, Kong, JH, Seo, JK, Lee, SH & Lee, HS 2011, An efficiency of 18.88% in selective emitter solar cells by metal pattern optimization. in Program - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011., 6186391, Conference Record of the IEEE Photovoltaic Specialists Conference, pp. 2189-2192, 37th IEEE Photovoltaic Specialists Conference, PVSC 2011, Seattle, WA, United States, 11/6/19. https://doi.org/10.1109/PVSC.2011.6186391

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abstract = "A high efficiency (η∼18.88 %) mono-crystalline Si solar cell (Area=15.6 × 15.6 cm 2) with a selective emitter structure used in the conventional diffusion process (POCl3) and the screen printed contact is presented in this paper. In particular, we focus on the improvement of fill factor (FF) by the front metal Ag portion and aspect ratio optimization. As a result, the front metal portion of 5.15% (printing thrice) represents the best in the FF of 77.68%. The fabricated solar cell with a selective emitter has the portion of high doping concentration (30 ohm/sq.) to just below the metal contact and the shallow emitter (80 ∼ 90 ohm/sq.) of the rest of contacts. As a result, our selective emitter solar cell is accomplished by the Eff 18.88% when the front metal portion of 5.15% is applied during its printing thrice.",

author = "Oh, {Dong Joon} and Shim, {Ji Myung} and Cho, {Kyeong Yeon} and Lee, {Eun Joo} and Lee, {Hyun Woo} and Choi, {Jun Young} and Kim, {Ji Sun} and Shin, {Jeong Eun} and Kong, {Ji Hyun} and Seo, {Jae Keun} and Lee, {Soo Hong} and Lee, {Hae Seok}",

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AU - Choi, Jun Young

AU - Kim, Ji Sun

AU - Shin, Jeong Eun

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AU - Lee, Hae Seok

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AB - A high efficiency (η∼18.88 %) mono-crystalline Si solar cell (Area=15.6 × 15.6 cm 2) with a selective emitter structure used in the conventional diffusion process (POCl3) and the screen printed contact is presented in this paper. In particular, we focus on the improvement of fill factor (FF) by the front metal Ag portion and aspect ratio optimization. As a result, the front metal portion of 5.15% (printing thrice) represents the best in the FF of 77.68%. The fabricated solar cell with a selective emitter has the portion of high doping concentration (30 ohm/sq.) to just below the metal contact and the shallow emitter (80 ∼ 90 ohm/sq.) of the rest of contacts. As a result, our selective emitter solar cell is accomplished by the Eff 18.88% when the front metal portion of 5.15% is applied during its printing thrice.

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An efficiency of 18.88% in selective emitter solar cells by metal pattern optimization

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