<p>A solar cell 1 has a number of grooves 2 formed in parallel with each other on a first main surface 24a of a silicon single crystal substrate. An electrode 6 is formed on the inner side face of each groove 2 on one side. Each groove 2 is formed in the direction in disagreement with the <110> direction on the first main surface 24a. This raises mechanical strength of the solar cell 1. The direction of formation of the grooves 2 preferably crosses the <110> direction nearest to the direction of formation at an angle of 4 DEG SIMILAR 45 DEG on the acute angle side. <IMAGE></p>
申请公布号
EP1365455(A1)
申请公布日期
2003.11.26
申请号
EP20020711237
申请日期
2002.01.30
申请人
SHIN-ETSU HANDOTAI CO., LTD;SHIN-ETSU CHEMICAL CO., LTD.