Assessment of Al-Cu-Fe compound for enhanced solar absorption

Alami, Abdul Hai; Alketbi, Afra S.; Abed, Jehad; Almheiri, Meera

doi:10.1002/er.3468

Cited by 17 publications

(9 citation statements)

References 34 publications

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“…where the copper oxide film is gradually formed on the outer surface of the Fe‐Cu material by the adsorption of OH − , followed by the dehydration of copper hydroxide into Cu 2 O. This is another indication of the formation of the FCC structure with Fe atoms being forced into the structure of the Cu grains, whereas the Fe 2 O 3 oxidation takes place on the Fe atoms that diffused out and were segregated from the Fe‐Cu material due to the annealing temperature .…”

Section: Resultsmentioning

confidence: 99%

“…This value is higher than the value reported for TiO 2 (6.96 × 10 19 /cm 3 ) in literature , proving that the quasicrystalline Fe‐Cu thin film can function as an excellent electron conducting material under irradiation conditions when a strong electron donor is present in the electrolyte. This explains the bigger current values in the IV curves of Figure when Fe‐Cu is used as a mesoporous layer instead of TiO 2 , and with the facile and cheap synthesis procedure of Fe‐Cu, the latter is considered a real competitor in the manufacture of dye‐sensitized solar cells to drive the cost‐per‐watt even lower .…”

Section: Resultsmentioning

confidence: 99%

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Fe‐Cu metastable material as a mesoporous layer for dye‐sensitized solar cells

Alami

Abed

Almheiri

et al. 2016

Energy Science & Engineering

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This study investigates the performance of dye-sensitized solar cells constructed with a Fe-Cu metastable material as the mesoporous layer on which a natural organic dye is applied. The synthesis of the Fe-Cu material is done via a high throughput process that produces nanosized particles from elemental metallic powders. Xanthophyll is singled out as the organic natural dye of choice among other dyes that were extracted, as it exhibited wider spectral absorptivity in terms of wavelength range and magnitude. Two compact solar cells were constructed and tested; one is a reference cell with a TiO 2 working electrode and the other with a Fe-Cu working electrode. The results show a better power conversion efficiency for the Fe-Cu-based solar cell 0.943% compared to 0.638% for the TiO 2 , and the number of carriers in the former is found to be orders of magnitude higher than the latter (10 19 vs. 10 32 , respectively). A thorough optical, electrical, and thermal analysis of the Fe-Cu material is conducted and used to explain the obtained results. 167

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Fe‐Cu metastable material as a mesoporous layer for dye‐sensitized solar cells

Alami

Abed

Almheiri

et al. 2016

Energy Science & Engineering

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“…Ruthenium‐based dye was simply prepared by dissolving 0.92 mg of ruthenium dye (N719) powder (Solaronix) into 30 mL of ethanol 27 . As for the natural dye, the leaves from the Calotropis were washed and rinsed with DI water 28 . The leaves were then sized down and immersed in ethanol at a ratio of 1:3 (leaf to ethanol).…”

Section: Methods and Experimentsmentioning

confidence: 99%

Comprehensive assessment of the Calotropis procera natural dye extracts with weather effects for photovoltaic solar cell manufacturing

Alashkar

Alasad

Aljaghoub

et al. 2022

Intl J of Energy Research

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This work studies the Calotropis procera, a xerophytic plant of the hyper-arid hot deserts of the Gulf region, as a model to assess correlations between environmental conditions and photosynthetic efficiency. Plant structure and environmental factors are thoroughly assessed, such as leaf surface orientation, daytime, and photosynthetic photon flux density (PPFD). The latter measures effect of incident light on leaf surface on the photosynthesis efficiency of Calotropis, and consequently the performance of a solar cell. Furthermore, the linear Angstrom model is developed to correlate solar irradiance and sunlit hours with the quality of incident radiation on cell performance. It was interesting to note that leaves facing east and south directions received higher incident light and temperatures, attained lower potential quantum efficiency and operating efficiency but higher values of nonphotochemical chlorophyll fluorescence quenching. Such results indicate that the loss of excess excitation energy was insufficient to enhance the photosynthesis efficiency in these directions. The dye extracts were used to build a dye-sensitized solar cells that were compared to ones using synthetic ruthenium dye. The Calotropis photosystem demonstrated lower efficiencies (0.157% vs 1.58% from Ru cells). Nevertheless, for the Calotropis-based cells, a figure-of-merit of cell efficiency over their production cost makes them a good candidate for research and development efforts to overcome obvious drawbacks of low efficiency and stability.

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“…However, the instability of ZnO in acidic environment and formation of dye aggregates on its surface deteriorate its performances [79]. This is probably due to its acidic surface and more positive (versus NHE) conduction band edge position compared to [85] were also studied. Alami et al evaluated the suitability of the Al 64 Cu 25 Fe 11 intermetallic compound to enhance spectral solar absorption when replacing the mesoporous layer material of DSSCs.…”

Section: Nanoparticles-based Semiconductors (0d Nanostructures)mentioning

confidence: 99%

Nanostructured Semiconductor Materials for Dye-Sensitized Solar Cells

Cavallo

Pascasio

Latini

et al. 2017

Journal of Nanomaterials

112

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Since O’Regan and Grätzel’s first report in 1991, dye-sensitized solar cells (DSSCs) appeared immediately as a promising low-cost photovoltaic technology. In fact, though being far less efficient than conventional silicon-based photovoltaics (being the maximum, lab scale prototype reported efficiency around 13%), the simple design of the device and the absence of the strict and expensive manufacturing processes needed for conventional photovoltaics make them attractive in small-power applications especially in low-light conditions, where they outperform their silicon counterparts. Nanomaterials are at the very heart of DSSC, as the success of its design is due to the use of nanostructures at both the anode and the cathode. In this review, we present the state of the art for bothn-type andp-type semiconductors used in the photoelectrodes of DSSCs, showing the evolution of the materials during the 25 years of history of this kind of devices. In the case ofp-type semiconductors, also some other energy conversion applications are touched upon.

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Assessment of Al-Cu-Fe compound for enhanced solar absorption

Cited by 17 publications

References 34 publications

Fe‐Cu metastable material as a mesoporous layer for dye‐sensitized solar cells

Fe‐Cu metastable material as a mesoporous layer for dye‐sensitized solar cells

Comprehensive assessment of the Calotropis procera natural dye extracts with weather effects for photovoltaic solar cell manufacturing

Nanostructured Semiconductor Materials for Dye-Sensitized Solar Cells

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