Borshchak V. Phenomena of generation and transport in nonideal heterostructures and creation on their basis the new type image sensors

In the dissertation the problem of development of the excitation and transport of nonequilibrium current carriers in essentially non-uniform structures - nonideal heterojunctions theory has been solved. On the basis of such structures the effective optical and X-ray new type image sensors are developed and created. The theory of nonideal heterojunction is created which explains feature of its conductivity in barrier region from positions of tunnel-jumping transport on the located states with variable jump length. Theoretical foundations the optical and X-ray essentially new type image signal shaper on the bases of heterojunction CdS-Cu2S work are developed. Essentially new type the optical image with internal amplification signal shaper has been developed and made. Such sensor has the effect signal long-term memory and accumulation (till 24 h.) that essentially distinguishes it from known image sensors. Sensitivity of the obtained samples in optical region makes not less than 10-6 lux. It is established, that the sensor on the basis of nonideal heterostructure CdS-Cu2S is sensitive to X-ray radiation and can fix, remember and store the X-ray image.