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Studies of electrical and optical properties of cadmium‐doped zinc oxide for energy conversion devices
Author(s) -
Zahra Marriam,
Ali Amjad,
Khalil Arif,
Rehman Saif Ur,
Mushtaq Naveed,
Akbar Muhammad,
Raza Rizwan
Publication year - 2021
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.202000026
Subject(s) - materials science , doping , dielectric spectroscopy , crystallite , microstructure , semiconductor , band gap , analytical chemistry (journal) , electrical resistivity and conductivity , zinc , optoelectronics , electrochemistry , composite material , chemistry , metallurgy , electrical engineering , electrode , chromatography , engineering
In this modern era, energy devices have become an important part of our daily life. Various types of energy conversion devices have been developed to meet the current energy demands. Semiconductor anode (CdZnO) has been synthesized by the sol‐gel method and lattice constants and the band gap results have been compared experimentally and theoretically. XRD results show that Cd‐doped ZnO shifts the peaks toward the lower angles, increases the lattice parameters, and decreases the crystallite size (48 nm). Microstructure of Cd‐doped ZnO shows the agglomerations of particles, found in the shape of cubes, hexagons, and dumbbell shapes with diameter in the range of 2–7 µm. The experimentally obtained conductivity of CdZnO is 0.142 S/cm at 550°C. The electrochemical impedance spectroscopy shows the decreased resistance with an increase in temperature. The doped system shows a maximum open circuit voltage of 0.95 V and performance of 0.52 W/cm 2 at 550°C.