Mohammad Rameez
Academia Sinica, Institute of Chemistry, Graduate Student
- Currently doing PhD in Sustainable Chemical Science and Technology. Interested in nanotechnology, history and politics.edit
In the third generation photovoltaic cells, DSSCs are the most promising due to their unique features such as cost effectiveness, flexibility and high efficiency in converting solar energy and they show wide range applicability. The use... more
In the third generation photovoltaic cells, DSSCs are the most promising due to their unique features such as cost effectiveness, flexibility and high efficiency in converting solar energy and they show wide range applicability. The use of highly expensive Pt as counter electrode is a major hindrance in large scale commercialization of DSSCs. In this paper, an inexpensive Ni-Co (2.5 wt. % each) decorated CNFs counter electrode was prepared by electrospinning technique followed by a simple in-situ polyol reduction method. First, the CNFs were prepared by electrospinning of poly acrylonitrile (PAN) followed by its carbonization at 1400°C with the heating rate of 2°C/min. The prepared CNFs were dispersed in ethylene glycol through ultrasonication and then the precursors of Ni and Co were added in it. The reductions of Ni and Co were achieved under reflux condition at the temperature of 80°C. The structural morphology of Ni-Co decorated CNFs was characterized by using XRD, Raman spectro...
Conducting polymers (CPs) have been widely investigated and applied in various applications such as sensors, supercapacitors, energy storage devices, dye-sensitized solar cells (DSSCs) and others. They are pseudo-capacitive materials and... more
Conducting polymers (CPs) have been widely investigated and applied in various applications
such as sensors, supercapacitors, energy storage devices, dye-sensitized solar cells
(DSSCs) and others. They are pseudo-capacitive materials and can undergo fast redox reactions.
Counter electrode (CE) is an important component in DSSCs. The counter electrode
function as an electron transfer agent as well as the regenerator of redox couple. So far various
methods and materials are used to prepare different counter electrodes. This paper
reviews the conducting polymers and their composites as counter electrodes which offer
a valuable insight to find out the appropriate alternative to costly platinum (Pt) counter
electrode for DSSCs. Furthermore, it also outlines the desirable properties for good counter
electrode materials and their evaluation methods such as cyclic voltammetry (CV), electrochemical
impedance spectroscopy (EIS), Tafel polarization and chronoamperometry with
photovoltaic performance studies for DSSCs.
such as sensors, supercapacitors, energy storage devices, dye-sensitized solar cells
(DSSCs) and others. They are pseudo-capacitive materials and can undergo fast redox reactions.
Counter electrode (CE) is an important component in DSSCs. The counter electrode
function as an electron transfer agent as well as the regenerator of redox couple. So far various
methods and materials are used to prepare different counter electrodes. This paper
reviews the conducting polymers and their composites as counter electrodes which offer
a valuable insight to find out the appropriate alternative to costly platinum (Pt) counter
electrode for DSSCs. Furthermore, it also outlines the desirable properties for good counter
electrode materials and their evaluation methods such as cyclic voltammetry (CV), electrochemical
impedance spectroscopy (EIS), Tafel polarization and chronoamperometry with
photovoltaic performance studies for DSSCs.