TY - GEN
T1 - Improvements of Voc by selective emitter pattern optimization in screen printed crystalline Si solar cells
AU - Cho, Kyeong Yeon
AU - Kim, Il Hwan
AU - Oh, Dong Joon
AU - Shim, Ji Myung
AU - Lee, Eun Joo
AU - Lee, Hyun Woo
AU - Choi, Jun Young
AU - Kim, Ji Sun
AU - Shin, Jeong Eun
AU - Lee, Soo Hong
AU - Lee, Hae Seok
PY - 2010
Y1 - 2010
N2 - We present a high efficiency (η ∼ 18.5%) mono-crystalline Si solar cells (A=15.6×15.6cm2) with a selective emitter structure using a conventional diffusion process (POCl3) and screen printed contact. Especially, in this paper, we focus on the improvement of Voc by selective emitter pattern optimization. As a result, we improve about 4mV Voc as a function of heavy emitter area, investigate the cause of the Voc increase by internal quantum efficiency and life time. The fabricated solar cell with selective emitter has accomplished Voc 635.78 mV, Jsc 37.03 mA/cm2, FF 78.35%, Eff 18.45%. The result shows improvement of Voc 8 mV, Jsc 0.57 A/cm2, Eff 0.5 % in comparison with the reference cell (homogeneous emitter structure) and improvement of Voc 3.7 mV, Eff 0.1 % as a function of heavy emitter size.
AB - We present a high efficiency (η ∼ 18.5%) mono-crystalline Si solar cells (A=15.6×15.6cm2) with a selective emitter structure using a conventional diffusion process (POCl3) and screen printed contact. Especially, in this paper, we focus on the improvement of Voc by selective emitter pattern optimization. As a result, we improve about 4mV Voc as a function of heavy emitter area, investigate the cause of the Voc increase by internal quantum efficiency and life time. The fabricated solar cell with selective emitter has accomplished Voc 635.78 mV, Jsc 37.03 mA/cm2, FF 78.35%, Eff 18.45%. The result shows improvement of Voc 8 mV, Jsc 0.57 A/cm2, Eff 0.5 % in comparison with the reference cell (homogeneous emitter structure) and improvement of Voc 3.7 mV, Eff 0.1 % as a function of heavy emitter size.
UR - http://www.scopus.com/inward/record.url?scp=78650137417&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78650137417&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2010.5614358
DO - 10.1109/PVSC.2010.5614358
M3 - Conference contribution
AN - SCOPUS:78650137417
SN - 9781424458912
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 1335
EP - 1338
BT - Program - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
T2 - 35th IEEE Photovoltaic Specialists Conference, PVSC 2010
Y2 - 20 June 2010 through 25 June 2010
ER -