A new cost-effective polymeric film containing an Eu(III) complex acting as UV protector and down-converter for Si-based solar cells and modules

Monzón-Hierro, Tania; Sanchiz, Joaquı́n; González‐Pérez, S.; González‐Díaz, Benjamín; Holinski, S.; Borchert, D.; Hernández-Rodríguez, C.; Guerrero‐Lemus, Ricardo

doi:10.1016/j.solmat.2015.01.020

Cited by 38 publications

(38 citation statements)

References 34 publications

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“…Several studies showing improvements in solar cells performance with distinct LDS phosphors were reported, such as organic dyes 9,10 , quantum dots (QDs) 9 , and lanthanide ions (Ln 3+ ) coordination complexes 6,7,[9][10][11][12][13][14][15][16][17][18] . The reasons for the wide utilization of Ln 3+ complexes (europium, Eu 3+ , and terbium, Tb 3+ ) are related to their strong emission and photostability and also the emission profile in the visible spectral range, which overlaps the absorption of c-Si solar cells.…”

Section: Introductionmentioning

confidence: 99%

Lanthanide-based downshifting layers tested in a solar car race

Correia

Bastos

et al. 2019

OEA

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The mismatch between the AM1.5G spectrum and the photovoltaic (PV) cells absorption is one of the most limiting factors for PV performance. To overcome this constraint through the enhancement of solar energy harvesting, luminescent downshifting (LDS) layers are very promising to shape the incident sunlight and, thus, we report here the use of Tb 3+and Eu 3+ -doped organic-inorganic hybrid materials as LDS layers on Si PV cells. Electrical measurements on the PV cell, done before and after the deposition of the LDS layers, confirm the positive effect of the coatings on the cell's performance in the UV spectral region. The maximum delivered power and the maximum absolute external quantum efficiency increased 14% and 27%, respectively. Moreover, a solar powered car race was organized in which the small vehicle containing the coated PV cells presented a relative increase of 9% in the velocity, when compared to that with the uncoated one.

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Section: Introductionmentioning

confidence: 99%

Lanthanide-based downshifting layers tested in a solar car race

Correia

Bastos

et al. 2019

OEA

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“…In this context, lanthanide complexes constituted of lanthanide ions and organic ligands, exhibiting favorable luminescent features such as a large Stokes shift, narrow emission bands and longer decay times, are promising down-shift candidates [19,20]. A wide range absorption of organic ligands in the UV region can lead to efficient energy transfer to the lanthanide ions and trigger strong luminescence, simultaneously also attenuating polymer matrix long-term degradation caused by UV irradiation [21][22][23][24]. In particular, the dominant emission of Eu 3+ at 612 nm is very close to the maximum spectral sensitivity of crystalline Si-based solar cells [25][26][27][28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic efficiency enhancement of polycrystalline silicon solar cells by a highly stable luminescent film

Wang

Gawryszewska-Wilczynsk

Zhang

et al. 2020

Sci. China Mater.

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Si-based solar cells have dominated the entire photovoltaic market, but remain suffering from low power conversion efficiency (PCE), partly because of the poor utilization of ultraviolet (UV) light. Europium(III) (Eu 3+) complexes with organic ligands are capable of converting UV light into strong visible light, which makes them ideal light converter to increase the efficiency of solar cells. However, the low stability of such complexes seriously hampers their practical applications. In this work, we report a highly stable and luminescent ethylene-vinyl acetate (EVA) copolymer film consisting of a Eu 3+ complex as a down-shift material, Eu (ND) 4 CTAC (ND = 4-hydroxy-2-methyl-1,5-naphthyridine-3carbonitrile, CTAC = hexadecyl trimethyl ammonium chloride), coating of which onto the surface of large area polycrystalline silicon solar cells (active area: 110 cm 2) results in an increase of PCE from 15.06% to 15.57%. Remarkable stability of the luminescent film was also demonstrated under lightsoaking test for 500 h, and no obvious luminescence degradation can be observed. The remarkable enhancement of the conversion efficiency by 0.51% absolute on such a large active area, together with the high stability of the luminescent film, demonstrates a prospect for the implementation of the films in photovoltaic industry.

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“…In order to solve this problem, the photoluminescence materials are introduced into solar cells as photonic conversion layers [4][5][6][7][8][9][10]. As is well known, the fluorescent materials are able to absorb the short-wavelength photons and convert them into longwavelength photons with better spectral responsiveness for solar cells [11][12][13]. Proceeding from this angle, rare-earth europium complexes can be introduced into solar cells with a significant impact on the photoelectric conversion efficiency [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Multiligand Europium Complexes Incorporated Polyvinylpyrrolidone for Enhanced Solar Cell

Guo

et al. 2019

Advances in Materials Science and Engineering

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Intense reddish-orange fluorescence of Eu3+ is observed in multiligand europium complexes Eu(BA)(TTA)2 and Eu(BA)(TTA)2Phen doped polyvinylpyrrolidone (PVP). Under 367 nm UVA-LED pumping with 708.5 μW, the net emission powers are as high as 204.8 and 243.2 μW, and the total emission photon numbers are derived to be 635.9 × 1012 and 754.9 × 1012 cps for Eu(BA)(TTA)2 and Eu(BA)(TTA)2Phen doped PVP thin films, respectively. It is incredible that the quantum yield (QY) is up to 57.87% in the former; furthermore, as the introduction of Phen, the QY of Eu3+ is increased to 62.03%, verifying the effectiveness of multiligands in photon conversion. Conclusive photon quantification and efficient fluorescence emission reveal the potential of europium complexes/PVP as UV-visible conversion layers for enhanced solar cells.

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A new cost-effective polymeric film containing an Eu(III) complex acting as UV protector and down-converter for Si-based solar cells and modules

Cited by 38 publications

References 34 publications

Lanthanide-based downshifting layers tested in a solar car race

Lanthanide-based downshifting layers tested in a solar car race

Photovoltaic efficiency enhancement of polycrystalline silicon solar cells by a highly stable luminescent film

Multiligand Europium Complexes Incorporated Polyvinylpyrrolidone for Enhanced Solar Cell

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