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Optymalizacja procesu wytwarzania polimerowego ogniwa słonecznego

Łuszczyńska В., Głowacki I., Kłąb Т.

Elektronika : konstrukcje, technologie, zastosowania

2013

Vol. 54, nr 5

44-46

Morfologia warstw aktywnych opartych na układzie poli(3-heksylotiofenu) (P3HT) z pochodną fulerenu (60PCBM) zależy od warunków ich wytwarzania i traktowania po wytworzeniu. W niniejszej pracy zaprezentowano układy fotowoltaiczne z heterozłączem opartym na mieszaninie P3HT60PCBM, które po optymalizacji warunków wytwarzania oraz zastosowaniu fluorku litu (LiF) jako warstwy przyelektrodowej wykazują sprawność konwersji mocy na poziomie 5,7% oraz współczynnik wypełnienia rzędu 60%.

The morphology of the active layers based on bulk heterojunction of poly(3-hexylthiophene) (P3HT) and fullerene derivative (60PCBM) strongly depends on the processing conditions for the fabrication of thin P3HT:60PCBM layers and their post-treatment process. In this work the P3HT60PCBM photovoltaics were presented, showing power conversion efficiency of 5,7% and fill factor of 60% after the optimization of the conditions for the thin layer fabrication and application of LiF interfacial layer.

Photovoltaic properties of bulk heterojunction devices based on CuI-PVA as electron donor and PCBM and modified PCBM as electron acceptor

Sharma G. D., Shanap T. S., Patel K. R., El-Mansy M. K.

Materials Science Poland

2012

Vol. 30, No. 1

10--16

In this paper, we have investigated the bulk heterojunction organic solar cells based on CuI - polyvinyl alcohol (CuI-PVA) nanocomposite as electron donor and [6,6] - phenyl C60 - butyric acid methyl ester (PCBM) or modified PCBM i.e. F as electron acceptor. The power conversion efficiencies (PCEs) of 0.46 % and 0.68 % were achieved for the photovoltaic devices based on as cast CuI-PVA:PCBM and CuI-PVA:F blend films, respectively. The higher PCEs of the organic solar cells based on F as electron acceptor resulted from the increase in both short circuit current (Jsc) and open circuit voltage (Voc), due to the increased absorption of F in visible region and its higher LUMO level. After thermal annealing, the PCEs of the organic solar cells were further increased to 0.54 % and 0.80 % for CuI-PVA:PCBM and CuI-PVA:F blends, respectively. The increase in the PCEs was mainly due to the increase in Jsc, which has been attributed to the improvement in hole mobility and broadening of the absorption band in the longer wavelength region. The improved hole mobility resulted in more balanced charge transport in the devices based on the thermally annealed blends.

Fabrication of large area photovoltaic devices containing various blends of polymer and fullerene derivatives by using the doctor blade technique

Padinger F., Brabec C. J., Fromherz T., Hummelen J. C., Sariciftci N. S.

Opto-Electronics Review

2000

Vol. 8, No. 4

280-283

Large area photovoltaic devices based on interpenetrating networks of donor and acceptor molecules have been fabricated by using the doctor blade technique. Devices containing blends of poly (para phenylenevinylene, PPV) derivatives as donor materials with various C60 derivatives as acceptor are compared. It is shown that among the various combinations of materials short circuit currents are maximal for blends of PPV and a highly soluble fullerene derivative (PCBM monoadduct), whereas the open circuit potentials stay almost the same for all devices. For the best combination of donor-acceptor materials it has been shown that upscaling to 10 x 15 cm is possible by using the doctor blade technique without loosing efficiency.