Author/Authors :
Komatsu، نويسنده , , Yuji and Koide، نويسنده , , Naoki and Yang، نويسنده , , Ming-Ju and Nakano، نويسنده , , Takanori and Nagano، نويسنده , , Yasue and Igarashi، نويسنده , , Kazuto and Yoshida، نويسنده , , Kohji and Yano، نويسنده , , Kozaburo and Hayakawa، نويسنده , , Takashi and Taniguchi، نويسنده , , Hiroshi and Shimizu، نويسنده , , Masafumi and Takiguchi، نويسنده , , Haruhisa، نويسنده ,
Abstract :
A hybrid junction solar cell with amorphous silicon (a-Si) and multicrystalline silicon (mc-Si) was fabricated using a mc-Si sheet substrate, which is produced directly from molten silicon using a novel rotational solidification method. The efficiency of 11.6% was obtained for the hybrid junction cell, while 10.2% for the single junction cell made of a mc-Si sheet substrate, which confirmed that the hybrid structure is effective to improve the solar cell property made of a mc-Si substrate. With introducing light trapping structure, the efficiency was improved to be 12.0%. Moreover, the possibility of Jsc improvement was investigated using the advanced light trapping structure. Jsc of 15.6 mA/cm2 was obtained and it was confirmed that the hybrid junction is a promising structure.
Keywords :
Inter-layer , mc-Si , Hybrid junction , Hybrid solar cell , Sheet substrate , Light trapping , a-Si , ZNO , Rotational solidification method
