Open AccessInterphase Dynamics of photoanode in Micro-energy generation in Photovoltaics
Author(s) -
T.J Abodunrin,
Oluseyi O. Ajayi,
Moses Emetere,
A. P. I. Popoola,
Olawale Popoola,
U. O. Uyor
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1107/1/012152
Subject(s) - photovoltaics , grain boundary , materials science , monocrystalline silicon , ionic bonding , dye sensitized solar cell , solar cell , silicon , energy conversion efficiency , scanning electron microscope , optoelectronics , chemical physics , nanotechnology , photovoltaic system , electrolyte , chemistry , composite material , ion , electrode , ecology , microstructure , organic chemistry , biology
Dye-sensitized solar cells (DSCs)as photovoltaics have been subject of intensive research in the last two decades owing to their outstanding features of relative thermal stability, low cost, optical tunability, ability to operate under conditions of poor lighting, and environment friendliness as such, they offer a promising substitute for conventional monocrystalline silicon solar cells. Their poor output efficiency has been incessantly associated with grain boundaries, good quality films are associated with lower recombination decays. and it has been claimed that grain boundaries have a negligible influence on performance. We used microscopy interrelated with scanning electron microscopy to resolve spatially the recombination dynamics from organic films of Murraya Koenigii . Stoichiometric organic films, varied in different grains even for the same film. In regions where grain boundaries were dimmer, nonradiative decay occurred faster. Ultraviolet spectroscopy showed positive correlation consistent with photon absorption and regions of the electromagnetic spectrum. The photovoltaic efficiency of M.Koenigii DSCs based on TiO2 sensitized with ionic electrolytes was compared. The output efficiency revealed that the ionic potential of Br-was more than 200% value of Cl-, and a final end reaction of above 100% that of I-under similar conditions of atmosphere and experimental set-up.