Te Layer to Reduce the CdTe Back-Contact Barrier

Band Alignment for Rectification and Tunneling Effects in Al2O3 Atomic-Layer-Deposited on Back Contact for CdTe Solar Cell.

The present work intends to explain why ultrathin Al2O3 atomic-layer-deposited (ALD) on the back contact with rectification and tunneling effects can significantly improve the performance of CdTe solar cells in our previous work [ Liang , J. ; et al. Appl. Phys. Lett. 2015 , 107 , 013907 ]. Herein, we further study the mechanism through establishing the interfacial energy band diagram configura...

Wiring-up carbon single wall nanotubes to polycrystalline inorganic semiconductor thin films: low-barrier, copper-free back contact to CdTe solar cells.

We have discovered that films of carbon single wall nanotubes (SWNTs) make excellent back contacts to CdTe devices without any modification to the CdTe surface. Efficiencies of SWNT-contacted devices are slightly higher than otherwise identical devices formed with standard Au/Cu back contacts. The SWNT layer is thermally stable and easily applied with a spray process, and SWNT-contacted devices...

DISSERTATION IMPACT OF BACK–CONTACT MATERIALS ON PERFORMANCE AND STABILITY OF CdS/CdTe SOLAR CELLS

OF DISSERTATION Impact of Back-contact Materials on Performance and Stability of CdS/CdTe Solar Cells Thin-film CdTe based solar cells are one of the leading contenders for providing lowcost and pollution-free energy. The formation of a stable, low resistance, non-rectifying contact to p-CdTe thin-film is one of the major and critical challenges associated with this technology in the fabricatio...

CdTe nBn photodetectors with ZnTe barrier layer grown on InSb substrates

Annealing effects and Te mixing in CdTe/CdS heterojunctions

Angular dependence of x-ray fluorescence techniques have been employed to investigate the effects of thermal annealing at various temperatures ranging from 340 to 387 °C on a series of CdTe/CdS heterojunctions. Changes in depth profiles of Te and Cd atoms in the CdS layer as a result of heat treatment has been observed. A simple model is proposed for comparison of the ratio of Te Ka to Cd Ka fl...