Advanced photon-harvesting concepts for low-energy gap organic solar cells

Koeppe, Robert A.; Bossart, Olivia; Calzaferri, Gion; Sariciftci, Niyazi Serdar

doi:10.1016/j.solmat.2007.01.008

Cited by 92 publications

(68 citation statements)

References 25 publications

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“…[207] ChemSusChem www.chemsuschem.org generation in the European Union member states has been recently evaluated in detail. [210] Here, we will not discuss the solid-state PV cells based on inorganic semiconductors, present on the market, [13,14,187,211] and those based on organic semiconductors [212,213] or organic-inorganic hybrids, [68,214] which are the object of extensive investigations. We will only mention a few issues related to the improvement of PV cells and describe briefly the photoelectrochemical cells which exploit scientific principles quite similar to those used in the above-described photosynthetic processes.…”

Section: Introductionmentioning

confidence: 99%

Photochemical Conversion of Solar Energy

2008

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Energy is the most important issue of the 21st century. About 85% of our energy comes from fossil fuels, a finite resource unevenly distributed beneath the Earth's surface. Reserves of fossil fuels are progressively decreasing, and their continued use produces harmful effects such as pollution that threatens human health and greenhouse gases associated with global warming. Prompt global action to solve the energy crisis is therefore needed. To pursue such an action, we are urged to save energy and to use energy in more efficient ways, but we are also forced to find alternative energy sources, the most convenient of which is solar energy for several reasons. The sun continuously provides the Earth with a huge amount of energy, fairly distributed all over the world. Its enormous potential as a clean, abundant, and economical energy source, however, cannot be exploited unless it is converted into useful forms of energy. This Review starts with a brief description of the mechanism at the basis of the natural photosynthesis and, then, reports the results obtained so far in the field of photochemical conversion of solar energy. The "grand challenge" for chemists is to find a convenient means for artificial conversion of solar energy into fuels. If chemists succeed to create an artificial photosynthetic process, "... life and civilization will continue as long as the sun shines!", as the Italian scientist Giacomo Ciamician forecast almost one hundred years ago.

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Section: Introductionmentioning

confidence: 99%

Photochemical Conversion of Solar Energy

2008

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“…We are interested in this work to the mixture ratio in order to optimize exciton dissociation probability (EDP) and photocurrent of MDMO-PPV based solar cells using analytical hopping model, where physical constants are taken from [13,14,15] and wavelenght was fixed at 600nm [16].…”

Section: Resultsmentioning

confidence: 99%

Recent Modeling of MDMO-PPV: PCBM Solar Cells versus Mixture Ratio, Electric Field and Incidence Angle with Hopping Model

Cheknane

Benyoucef

Ferouani

et al. 2014

ETET

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ABSTRACT.It is a matter of controversy why excitons can efficiently dissociate into free carriers at an intrinsic polymer/fullerene interface. While extensive characterization is performed in the course of many reported experimental studies, correlation of performance and physical parameters among studies done in different laboratories is low, pointing out the need to address some aspects of BHJSC active materials that have received relatively some attention. In this paper, we discuss the modeling of MDMO-PPV/PCBM(Poly(2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylenevinylene)/ soluble C60 derivative, methanofullerene, [6,6]-phenyl C61-butyric acid methyl ester organic devices. In our approach, we apply two recent methods so called transfer matrix method and hopping model to calculate the exciton dissociation probability, and photocurrent density versus mixture ratio, electric field and angle of incidence. The results show that EDP (exciton dissociation probability) in solar cells without PEDOT-PSS (Poly (ethylendioxythiophene)-Poly(styrene sulfonic acid)) HTL hole transporting layer is better than the cells with additional layer in enhancing the performance of MDMO-PPV/PCBM solar cells. When the weight ratio of MDMO-PPV is less than 3:5 and 2 :5 respectively, the best exciton dissociation probability, and photocurrent density of solar cell is obtained

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“…The authors showed an energy-transfer cascade from the excited dyes in the ZL channels to the ZnPc acceptor through a stopcock molecule. [12] However, Pcs have been explored as stopcock molecules only very recently. [13] Unsymmetrically substituted ZnPcs bearing a rigid tail substituent at one of the isoindole units are unique examples of two-dimensional stopcock molecules that provide an ideal electronic dipole moment coupling situation independent of the orientation of the dyes in the ZL channels.…”

Section: )mentioning

confidence: 99%

On the Significance of the Anchoring Group in the Design of Antenna Materials Based on Phthalocyanine Stopcocks and Zeolite L

López‐Duarte

Dieu

Dolamic

et al. 2010

Chemistry A European J

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The synthesis of stopcocks based on zinc phthalocyanine for selective adsorption at the channel entrances of zeolite L is reported. The introduction of either an inert SiMe₃ moiety, an imidazolium cation or a reactive isothiocyanate (NCS) group allows attachment to the channel entrances of zeolite L through van der Waals interactions, electrostatic interactions, or covalent binding, respectively. Stopcocks that rely on van-der-Waals-driven adsorption require careful selection of the solvent used for the deposition onto the zeolite surface to avoid a nonspecific distribution of the molecules. Regarding the design of photonic antenna systems, a stopcock with a cationic tail was found to be the most convenient, based on the observation that efficient energy transfer from molecules located in the zeolite nanochannels is more readily obtained than in the other cases.

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Advanced photon-harvesting concepts for low-energy gap organic solar cells

Cited by 92 publications

References 25 publications

Photochemical Conversion of Solar Energy

Photochemical Conversion of Solar Energy

Recent Modeling of MDMO-PPV: PCBM Solar Cells versus Mixture Ratio, Electric Field and Incidence Angle with Hopping Model

On the Significance of the Anchoring Group in the Design of Antenna Materials Based on Phthalocyanine Stopcocks and Zeolite L

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