Characterization of P3HT:PCBM:CdSe hybrid solar cells

Jotterand, Stéphane A. (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland) ; Jobin, Marc (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland)

We have investigated the effect of adding CdSe quantum dots (QDs) with their hexadecylamine (HDA) ligands coating in ITO/SPT/P3HT:PCBM/Al bulk heterojunction (BHJ) organic photovoltaic cells (OPV). At first, we found that the optimal thermal treatment was a post cathode deposition annealing, due to an effective surface area 10.8% larger compared to a pre-cathode thermal treatment. Absorbance spectra for hybrid cells with incorporated QDs diameters ranging from 2.2 nm to 6.3 nm show the largest absorbance for 3.3 nm QD diameter. The 3.3 nm QD also gives the lowest power performance. We explained the general degraded performance as an effect of the HDA ligands coating around QDs. Finally, in order to track the lateral inhomogeneity of the final device, we have mapped the I-V over the entire surface cell (2 cm x 2 cm) with a definition of 200 pts x 200 pts.


Keywords:
Conference Type:
full paper
Faculty:
Ingénierie et Architecture
School:
HEPIA - Genève
Institute:
inSTI - Institut des Sciences et Technologies industrielles
Publisher:
San Francisco, USA, 25-29 April 2011
Date:
2011-04
San Francisco, USA
25-29 April 2011
Pagination:
7 p.
Published in:
Proceedings of E-MRS Spring Meeting 2011, Symposium S: Organic Photovoltaics: Science and Technology, 25-29 April 2011, San Francisco, USA ; Energy Procedia
Numeration (vol. no.):
2012, vol. 31, pp. 117-123
DOI:
ISSN:
1876-6102
Appears in Collection:



 Record created 2020-02-14, last modified 2020-02-14

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