Synthesis of Zinc Oxide Nano Particles Implemented in Dye-Sensitised Solar Cells
SYNTHESIS OF ZINC OXIDE NANO PARTICLES IMPLEMENTED IN DYESENSITISED SOLAR CELLS
Sunya Pratyutpana, Sahithya Kandalam, R. Aarthi and Fozia Z. Haque*
3rd year, B.Tech, MANIT Bhopal. * Asst. Prof. Department of Physics, MANIT Bhopal. april.sunya@gmail.com sahithya08@gmail.com r.aarthi04@gmail.com
ABSTRACT: The vital component of Dye-sensitized solar cells are the nanorods which not only provide a high surface area for electron transport, but the monocrystalline arrays ensure the rapid collection of charge carriers generated throughout the device from the point of photogeneration to the conducting substrate, hence leading to an improved electron transport and higher efficiencies. The methods used in the synthesis of nanorods in our experiment are based on moderate conditions and hence are quite simple. After the seed formation, the nanorod synthesis is a temperature and concentration dependent process. The nanorods formed grow straight in the C direction and should be ideally straight. This contribution presents a discussion of the influence of each of the materials which constitute the DSSC of the overall process of energy conversion. Keywords: sol-gel method, Rhodamine 6G dye, annealing, nanorods, nucleation, recombination
I. INTRODUCTION
The sun delivers more energy to earth in 1 hour than is used in a year from all currently available sources. However, only 0.1% of world’s total energy is derived from it. Solar cell is that which
converts solar energy into electrical energy based on photovoltaic effect. Solar cells is a 3layered structure with N type semiconductor on the top, followed by an absorber layer (P-N junction) and finally a back junction layer (P type semiconductor). On the Top, electric grid contact layer is necessary for the entry and exit
of current and back layer can be of any conducting metal. Anti-reflective coating should be applied so as to prevent the reflection of the solar rays back into atmosphere. The important factors in
Sunya Pratyutpana, Sahithya Kandalam, R. Aarthi and Fozia Z. Haque*
3rd year, B.Tech, MANIT Bhopal. * Asst. Prof. Department of Physics, MANIT Bhopal. april.sunya@gmail.com sahithya08@gmail.com r.aarthi04@gmail.com
ABSTRACT: The vital component of Dye-sensitized solar cells are the nanorods which not only provide a high surface area for electron transport, but the monocrystalline arrays ensure the rapid collection of charge carriers generated throughout the device from the point of photogeneration to the conducting substrate, hence leading to an improved electron transport and higher efficiencies. The methods used in the synthesis of nanorods in our experiment are based on moderate conditions and hence are quite simple. After the seed formation, the nanorod synthesis is a temperature and concentration dependent process. The nanorods formed grow straight in the C direction and should be ideally straight. This contribution presents a discussion of the influence of each of the materials which constitute the DSSC of the overall process of energy conversion. Keywords: sol-gel method, Rhodamine 6G dye, annealing, nanorods, nucleation, recombination
I. INTRODUCTION
The sun delivers more energy to earth in 1 hour than is used in a year from all currently available sources. However, only 0.1% of world’s total energy is derived from it. Solar cell is that which
converts solar energy into electrical energy based on photovoltaic effect. Solar cells is a 3layered structure with N type semiconductor on the top, followed by an absorber layer (P-N junction) and finally a back junction layer (P type semiconductor). On the Top, electric grid contact layer is necessary for the entry and exit
of current and back layer can be of any conducting metal. Anti-reflective coating should be applied so as to prevent the reflection of the solar rays back into atmosphere. The important factors in