Review of the methods to enhance efficiencies of solar pvc's
TERM PAPER ON MATERIALS REQUIRED, PROCESSING INVOLVED AND REVIEW OF EFFICIENCY IMPROVEMENT METHODS FOR ORGANIC SOLAR CELLS BASED ON SMALL MOLECULES
MSE 681 - SOLAR ENERGY TECHNOLOGIES AND MATERIALS
Instruction Credentials: Dr. Ashish GargIIT KANPUR
Group-III members:
Bukke Srinivas Naik -10203.
Prashant Kumar Mehta -10525
Introduction and background:
Why does organic solar cells have made an entry into the semiconductor industry? What benefits they provide us over the pre-existing solar cells? What is their current status? What are the challenges? What improvements are needed to be focused? These are the questions that one individual should ask himself if he/she does an research on these organic solar cells.
The reason behind their entry is the scarcity of existing crystalline solar cell manufacturing base material, day by day hiking cost. As we all know that the polymers and simple molecules are abundant on earths surface and are cheaper in cost, and having desirable physical properties like light weight, flexibility etc. These are initial parameters those pushed the researchers to step in and take the motive of introducing organic solar cells into semiconductor device industry. Initially silicon based solar cells were in many, but because of cost factor and their respective material properties they were moderately replaced by organic photo voltaic cells. As they are cheap, lightweight and are easy to fabricate they are in lead to crystalline organic photo voltaic cells. Devices made of these are supposed to have a theoretical efficiency of 10%. But, today, the efficiency we have for a small molecule organic photo voltaic cell is in the range of (0.3-1.3)%. Hence, efforts for higher efficiencies are under research for many years, and these researchers have given a point to notice that the designing and synthesis of donor acceptor materials is vital for an efficient organic photo voltaic cell. Challenges so far we have are because of their low
MSE 681 - SOLAR ENERGY TECHNOLOGIES AND MATERIALS
Instruction Credentials: Dr. Ashish GargIIT KANPUR
Group-III members:
Bukke Srinivas Naik -10203.
Prashant Kumar Mehta -10525
Introduction and background:
Why does organic solar cells have made an entry into the semiconductor industry? What benefits they provide us over the pre-existing solar cells? What is their current status? What are the challenges? What improvements are needed to be focused? These are the questions that one individual should ask himself if he/she does an research on these organic solar cells.
The reason behind their entry is the scarcity of existing crystalline solar cell manufacturing base material, day by day hiking cost. As we all know that the polymers and simple molecules are abundant on earths surface and are cheaper in cost, and having desirable physical properties like light weight, flexibility etc. These are initial parameters those pushed the researchers to step in and take the motive of introducing organic solar cells into semiconductor device industry. Initially silicon based solar cells were in many, but because of cost factor and their respective material properties they were moderately replaced by organic photo voltaic cells. As they are cheap, lightweight and are easy to fabricate they are in lead to crystalline organic photo voltaic cells. Devices made of these are supposed to have a theoretical efficiency of 10%. But, today, the efficiency we have for a small molecule organic photo voltaic cell is in the range of (0.3-1.3)%. Hence, efforts for higher efficiencies are under research for many years, and these researchers have given a point to notice that the designing and synthesis of donor acceptor materials is vital for an efficient organic photo voltaic cell. Challenges so far we have are because of their low
References: http://phys.org/news/2012-12-nanostructures-triple-solar-cells-efficiency.htmlhttp://phys.org/news/2014-03-efficiency-solar-cells.htmlphys.org/news/2014-04-solar-cells-efficient-molecules-face-to-face.html http://www.idtechex.com/research/reports/energy-harvesting-and-storage-for-electronic-devices-2012-2022-000316.asphttp://dspace.mit.edu/bitstream/handle/1721.1/45829/319440322.pdf?sequence=1http://www.sciencedirect.com/science/article/pii/S0009261405014211http://www.sciencedirect.com/science/article/pii/S092702481100002X?np=yhttp://www.energyharvestingjournal.com/articles/method-to-increase-solar-cell-efficiency-00005035.asp?sessionid=1http://onlinelibrary.wiley.com/doi/10.1002/adfm.201002760/fullhttp://www.sciencedirect.com/science/article/pii/S1566119913001110http://pubs.acs.org/doi/pdf/10.1021/cr050149zhttp://en.wikipedia.org/wiki/Conjugated_systemhttp://onlinelibrary.wiley.com/doi/10.1002/adfm.201002760/abstractPaper on: Solution Processed small molecule solar cells with 6.7%efficiency - Yanming Sun, Gregory C. Welch, Wei Lin Leong, Christopher J. Takacs, Guillermo C. Bazan* and Alan J. Heege. Paper on :Efficient organic tandem solar cells based on small molecules- Morietz Riede. Paper on: Improved efficiency of solution processed small molecules organic solar cells using annealing.- Xiangjian Wan, Yongsheng Liu, Fei Wang, Jiaoyan Zhou, Guankui Long, Yongsheng Chen.