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Vacuum‐Evaporated ZnO Photoanode, Applied in Quantum Dot‐Sensitized Solar Cells (CdS‐CdSe)
Author(s) -
Alvarado José Alberto,
Luo Jun,
Juarez Héctor,
Pacio Mauricio,
CortesSantiago Avelino,
Liang Lihua,
Neale Zachary G.,
Cao Guozhong
Publication year - 2018
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201800356
Subject(s) - materials science , quantum dot , scanning electron microscope , solar cell , nanometre , band gap , transmittance , optoelectronics , crystal (programming language) , adsorption , nanotechnology , chemical engineering , layer (electronics) , composite material , chemistry , computer science , engineering , programming language , organic chemistry
In this research, the application of vacuum‐evaporated nanostructured ZnO thin films as a photoanode and its use in quantum dot‐sensitized solar cells (QDSSCs) is reported. Quantum dots (CdS/CdSe) are deposited through successive ionic layer adsorption and reaction (SILAR) technique. Thirty nanometers average size ZnO nanoparticles synthesized from solution are used as a source, resultant thickness starts from 200 nm to 3 microns. Average size and crystal phase identification are done by XRD. Scanning electron microscopy (SEM), UV‐Vis, profilometer, and J–V are used to determine morphology, elemental composition, transmittance, band gap, thickness, and efficiency of the solar cell, respectively. Characterization of efficiency is carried out on different film thicknesses. A total efficiency of 1.25% is obtained for a specific film thickness under 1.5 AM.