Chalcogenide glass-ceramic with self-organized heterojunctions: application to photovoltaic solar cells

Characterization of silicon heterojunctions for solar cells

Conductive-probe atomic force microscopy (CP-AFM) measurements reveal the existence of a conductive channel at the interface between p-type hydrogenated amorphous silicon (a-Si:H) and n-type crystalline silicon (c-Si) as well as at the interface between n-type a-Si:H and p-type c-Si. This is in good agreement with planar conductance measurements that show a large interface conductance. It is de...

Application of Photovoltaic Solar Cells in Planar Antenna Structures

This paper describes the application of photovoltaic solar cells in planar antenna structures. The radiating patch element of a planar antenna is replaced by a solar cell. The original feature of a solar cell (DC current generation) remains, but additionally the cell is now able to receive and transmit electromagnetic waves. For a proper performance of these functions a RF-DC decoupling is nece...

Reticulated heterojunctions for photovoltaic devices.

Herein we present a molecular self-assembly process on the surface of transparent electrodes that yields a new type of organic semiconductor device structure: the donor deposits as supramolecular cables, and the acceptor subsequently infiltrates this network. This process results in a donor–acceptor interface that is interwoven at the nanoscale. When incorporated into photovoltaic devices, such...

The second-harmonic generation in chalcogenide glass-ceramic doped with CdS nanocrystals

Self-Organized Criticality Below The Glass Transition

– We obtain evidence that the dynamics of glassy systems below the glass transition is characterized by self-organized criticality. Using molecular-dynamics simulations of a model glass-former we identify clusters of cooperatively jumping particles. We find string-like clusters whose size is power-law-distributed not only close to Tc but for all temperatures below Tc, indicating self-organized ...