Photovoltaic Materials, Devices, and Technologies

Performance of hetero junction with intrinsic thin-layer solar cell depending upon contact resistivity of front electrode

[+] Author Affiliations
Youngseok Lee, Sunbo Kim

Sungkyunkwan University, Department of Energy Science, Suwon, 440-746, Republic of Korea

Sangmyeong Han, Sk Md Iftiquar, Youn-Jung Lee, Vinh Ai Dao

Sungkyunkwan University, College of Information and Communication Engineering 440-746, Republic of Korea

Jinsu Yoo

Korea Institute of Energy Research (KIER), Solar Energy Department, 152 Gajeong-ro, Yuseong-gu, Daejeon 305-343, Republic of Korea

Junsin Yi

Sungkyunkwan University, Department of Energy Science, Suwon, 440-746, Republic of Korea

Sungkyunkwan University, College of Information and Communication Engineering 440-746, Republic of Korea

J. Photon. Energy. 4(1), 043094 (May 26, 2014). doi:10.1117/1.JPE.4.043094
History: Received March 15, 2014; Revised April 28, 2014; Accepted April 30, 2014
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Abstract.  Low temperature curing of Ag paste for electrode formation in silicon hetero junction (SHJ) solar cells is important for providing better device characteristics. Ag paste is composed of solvent, various organic materials, and additives; hence its electrical and mechanical adhesion properties depend on the curing conditions. The adhesion of the Ag paste was determined by scratch test, whereas the specific contact resistance was measured using the transfer length method. Various Ag electrodes were formed at various curing temperatures within the temperature range of 160°C–240°C, at 20°C intervals. The curing time was also varied for another set of Ag electrodes. With 200°C temperature and for 20-min curing, the critical load of 20.06 N and specific contact resistance of 19.61mΩ·cm2 were observed. Using the same conditions, the efficiency of the SHJ solar cell was found to be improved by 3.8%.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Youngseok Lee ; Sangmyeong Han ; Sunbo Kim ; Sk Md Iftiquar ; Youn-Jung Lee, et al.
"Performance of hetero junction with intrinsic thin-layer solar cell depending upon contact resistivity of front electrode", J. Photon. Energy. 4(1), 043094 (May 26, 2014). ; http://dx.doi.org/10.1117/1.JPE.4.043094


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