TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components:The insulating layer covers an entire top surface of the first portion of the second rear electrode. The insulating layer covers a portion of a top surface of the first portion of the second rear electrode. The light-absorbing layer comprises a first light-absorbing portion between the first rear electrode and the first window electrode, and the first light-absorbing portion comprising a light-absorbing filling portion between the first rear electrode and the second rear electrode. The light-absorbing filling portion directly contacts a side of the first rear electrode, a side of the second rear electrode, and the substrate at a location between the first rear electrode and the second rear electrode. The light-absorbing filling portion has a higher conductivity than a remainder of the first light-absorbing portion other than the light-absorbing filling portion. The light-absorbing filling portion has a higher conductivity in a direction towards the substrate. The light-absorbing filling portion is integral to the first light-absorbing portion. The light-absorbing filling portion forms a shunt current path between the first rear electrode and the second rear electrode when a potential of the first rear electrode is lower than a potential of the second rear electrode. Preferred method: The step of forming: the window electrode layer comprises forming a first window electrode, which is electrically coupled to the second rear electrode, on the second region; and the rear electrode layer and the insulating layer comprises forming the rear electrode layer comprising the first rear electrode and the second rear electrode, which are spaced from each other on the first region, by patterning the conductive layer, and forming the insulating layer on at least a portion of a top surface of the third region defined on the second rear electrode, after forming the rear electrode layer. The step of forming of the rear electrode layer and the insulating layer comprises: forming the insulating layer on at least a portion of the top surface of the conductive layer of the third region; and forming the rear electrode layer comprising the first rear electrode and the second rear electrode on which the insulating layer is formed, by patterning the conductive layer after forming the insulating layer. The step of forming the insulating layer is performed by inkjet printing or screen printing. The step of forming the insulating layer is performed by chemical vapor deposition or sputtering using a shadow mask. The step of forming the light-absorbing layer comprises forming a first light-absorbing portion between the first rear electrode and a first window electrode, where the first light absorbing portion comprises a light absorbing filling portion, between the first rear electrode and the second rear electrode. The step of forming the light-absorbing filling portion comprises diffusing alkali ions from the substrate to the light-absorbing filling portion.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The insulating layer comprises at least one material including polyimide, Kevlar, novolak, polyethylene terephthalate, ethylenevinylacetate and polycarbonate. The insulating layer comprises at least one material including a silicon oxide, a silicon nitride, and a silicon nitric oxide.