Analysis of MZO/CdTe photovoltaic device treated with cadmium bromide

Abstract

The treatment of CdTe with a CdBr2 activation annealing step has been performed and the device characterized for its electrical, compositional and structural properties with Capacitance-Voltage, Current-Voltage, Transmission Electron Microscopy, Energy Dispersive X-ray analysis (EDX), Electron Backscattered Diffraction Analysis, photoluminescence and high spatial resolution-Secondary Ion Mass Spectrometry (nanoSIMS). NanoSIMS and EDX show the bromine segregating in the grain boundaries and also in through grain defects. This CdBr2 treated sample has a net doping density of 1.05x10 14 cm -3 , an efficiency of 8.6 % with a Jsc of 23.7 mAcm -2 and Voc of 762 mV. The bandgap has been calculated to be 1.49 eV.

Design of Au/Cdbr2/Au as Negative Capacitance Devices and as Band Filters Suitable for 4G Technologies

“…It is mentioned that the treatment of CdTe with a CdBr 2 increases the efficiency up to 8.6%. The associated short circuit current density and open circuit voltage reached a 23.7 mA/cm 2 and 0.76 V, respectively 2 . In addition, Ag doped CdBr 2 is mentioned being sensitive to the high energy photons like X-rays and ultra-violets.…”

“…It has great potential for lasing applications 1 . This compound is used for the enhancement of the efficiency of CdTe solar cells 2 . It is mentioned that the treatment of CdTe with a CdBr 2 increases the efficiency up to 8.6%.…”