FIG. 1 is a top perspective view of the first embodiment of a solar cell showing our new design;
FIG. 2 is a top plan thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a enlarged view of area 4 of FIG. 2;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a back elevation view thereof;
FIG. 7 is a left side elevation view thereof;
FIG. 8 is a right side elevation view thereof;
FIG. 9 is a front elevation view of the second embodiment of a solar cell showing our new design;
FIG. 10 is a back elevation view thereof;
FIG. 11 is a left elevation view thereof;
FIG. 12 is a right elevation view thereof;
FIG. 13 is a top plan view thereof;
FIG. 14 is a bottom plan view thereof;
FIG. 15 is a front elevation view of the third embodiment of a solar cell showing our new design;
FIG. 16 is a back elevation view thereof;
FIG. 17 is a left elevation view thereof;
FIG. 18 is a right elevation view thereof;
FIG. 19 is a top plan view thereof;
FIG. 20 is a bottom plan view thereof;
FIG. 21 is a front elevation view of the fourth embodiment of a solar cell showing our new design;
FIG. 22 is a back elevation view thereof;
FIG. 23 is a left elevation view thereof;
FIG. 24 is a right elevation view thereof;
FIG. 25 is a top plan view thereof;
FIG. 26 is a bottom plan view thereof;
FIG. 27 is a front elevation view of the fifth embodiment of a solar cell showing our new design;
FIG. 28 is a back elevation view thereof;
FIG. 29 is a left elevation view thereof;
FIG. 30 is a right elevation view thereof;
FIG. 31 is a top plan view thereof;
FIG. 32 is a bottom plan view thereof;
FIG. 33 is a front elevation view of the sixth embodiment of a solar cell showing our new design;
FIG. 34 is a back elevation view thereof;
FIG. 35 is a left elevation view thereof;
FIG. 36 is a right elevation view thereof;
FIG. 37 is a top plan view thereof;
FIG. 38 is a bottom plan view thereof;
FIG. 39 is a front elevation view of the seventh embodiment of a solar cell showing our new design;
FIG. 40 is a back elevation view thereof;
FIG. 41 is a left elevation view thereof;
FIG. 42 is a right elevation view thereof;
FIG. 43 is a top plan view thereof;
FIG. 44 is a bottom plan view thereof;
FIG. 45 is a front elevation view of the eighth embodiment of a solar cell showing our new design;
FIG. 46 is a back elevation view thereof;
FIG. 47 is a left elevation view thereof;
FIG. 48 is a right elevation view thereof;
FIG. 49 is a top plan view thereof;
FIG. 50 is a bottom plan view thereof;
FIG. 51 is a front elevation view of the ninth embodiment of a solar cell showing our new design;
FIG. 52 is a back elevation view thereof;
FIG. 53 is a left elevation view thereof;
FIG. 54 is a right elevation view thereof;
FIG. 55 is a top plan view thereof;
FIG. 56 is a bottom plan view thereof;
FIG. 57 is a front elevation view of the tenth embodiment of a solar cell showing our new design;
FIG. 58 is a back elevation view thereof;
FIG. 59 is a left elevation view thereof;
FIG. 60 is a right elevation view thereof;
FIG. 61 is a top plan view thereof;
FIG. 62 is a bottom plan view thereof;
FIG. 63 is a front elevation view of the eleventh embodiment of a solar cell showing our new design;
FIG. 64 is a back elevation view thereof;
FIG. 65 is a left elevation view thereof;
FIG. 66 is a right elevation view thereof;
FIG. 67 is a top plan view thereof;
FIG. 68 is a bottom plan view thereof;
FIG. 69 is a front elevation view of the twelfth embodiment of a solar cell showing our new design;
FIG. 70 is a back elevation view thereof;
FIG. 71 is a left elevation view thereof;
FIG. 72 is a right elevation view thereof;
FIG. 73 is a top plan view thereof;
FIG. 74 is a bottom plan view thereof;
FIG. 75 is a front elevation view of the thirteenth embodiment of a solar cell showing our new design;
FIG. 76 is a back elevation view thereof;
FIG. 77 is a left elevation view thereof;
FIG. 78 is a right elevation view thereof;
FIG. 79 is a top plan view thereof;
FIG. 80 is a bottom plan view thereof;
FIG. 81 is a front elevation view of the fourteenth embodiment of a solar cell showing our new design;
FIG. 82 is a back elevation view thereof;
FIG. 83 is a left elevation view thereof;
FIG. 84 is a right elevation view thereof;
FIG. 85 is a top plan view thereof;
FIG. 86 is a bottom plan view thereof;
FIG. 87 is a front elevation view of the fifteenth embodiment of a solar cell showing our new design;
FIG. 88 is a back elevation view thereof;
FIG. 89 is a left elevation view thereof;
FIG. 90 is a right elevation view thereof;
FIG. 91 is a top plan view thereof;
FIG. 92 is a bottom plan view thereof;
FIG. 93 is a front elevation view of the sixteenth embodiment of a solar cell showing our new design;
FIG. 94 is a back elevation view thereof;
FIG. 95 is a left elevation view thereof;
FIG. 96 is a right elevation view thereof;
FIG. 97 is a top plan view thereof;
FIG. 98 is a bottom plan view thereof;
FIG. 99 is a front elevation view of the seventeenth embodiment of a solar cell showing our new design;
FIG. 100 is a back elevation view thereof;
FIG. 101 is a left elevation view thereof;
FIG. 102 is a right elevation view thereof;
FIG. 103 is a top plan view thereof;
FIG. 104 is a bottom plan view thereof;
FIG. 105 is a front elevation view of the eighteenth embodiment of a solar cell showing our new design;
FIG. 106 is a back elevation view thereof;
FIG. 107 is a left elevation view thereof;
FIG. 108 is a right elevation view thereof;
FIG. 109 is a top plan view thereof;
FIG. 110 is a bottom plan view thereof;
FIG. 111 is a front elevation view of the nineteenth embodiment of a solar cell showing our new design;
FIG. 112 is a back elevation view thereof;
FIG. 113 is a left elevation view thereof;
FIG. 114 is a right elevation view thereof;
FIG. 115 is a top plan view thereof;
FIG. 116 is a bottom plan view thereof;
FIG. 117 is a front elevation view of the twentieth embodiment of a solar cell showing our new design;
FIG. 118 is a back elevation view thereof;
FIG. 119 is a left elevation view thereof;
FIG. 120 is a right elevation view thereof;
FIG. 121 is a top plan view thereof;
FIG. 122 is a bottom plan view thereof;
FIG. 123 is a front elevation view of the twenty-first embodiment of a solar cell showing our new design;
FIG. 124 is a back elevation view thereof;
FIG. 125 is a left elevation view thereof;
FIG. 126 is a right elevation view thereof;
FIG. 127 is a top plan view thereof; and,
FIG. 128 is a bottom plan view thereof.
In the drawing views, the even broken line and the dash-dot broken line represent unclaimed portions of the solar cell that form no part of the claimed design.