Photon induced modulation of surface barrier: investigation and application for a new image sensor

Influence of internal parameters on the signal value in optical sensor based on the non-ideal heterostructure CdS-Cu2S

“…Basic photoelectrical characteristics of non-ideal heterojunctions cannot be explained without assumption that mechanisms of current transfer through the space charge region (SCR) differ from the thermal emissive ones and play the distinctive role [1][2][3]. These mechanisms have usually a tunnel character.…”

“…These mechanisms have usually a tunnel character. The detailed study of the influence of SCR parameters on heterostructure conductivity is important in this relation, because it allows correcting the mechanism of losses in photosensors [3]. And the studies in relationship of barrier region conductivity with its width are of particular interest from the viewpoint that current transfer can have a tunnel character.…”

Sensor based on a non-ideal heterojunction to indicate X-ray images

“…Meanwhile, it is known that the effect of X-rays, like visible light, leads to appearance of non-equilibrium carriers, and it can be used to obtain images in X-rays. In this case, as in [2,4], image, in fact, should be shaped by non-equilibrium positive charge captured at hole traps in the space charge area of cadmium sulphide. So, there are the reasons to suppose that it shall have the same properties like the images obtained in the visible range of the spectrum.…”