<p>The element is provided with: a first insulating substrate (21); a second insulating substrate opposing the first substrate across gap therebetween; a plurality of photoelectric conversion elements sandwiched between the first insulating substrate (21) and the second insulating substrate, and positioned with gaps therebetween; and an inter-cell insulating seal portions (29) extending between adjacent photoelectric conversion elements among the photoelectric conversion elements to provide mutual isolation, and bonding together the first insulating substrate (21) and the second insulating substrate. The length of at least one of two first lines (112) on a side surface extending in the direction of extension of the inter-cell insulating seal portion (29) in plan view along the contours of the inter-cell insulating seal portion (29) is greater than the length (LS) of a hypothetical line segment connecting both ends of the inter-cell insulating seal portion (29) in the direction of extension thereof.</p>
