Study of the properties of CuInSe2 materials prepared from nanoparticle powder

Mehdaoui, S.; Benslim, N.; Aissaoui, O.; Benabdeslem, M.; Bechiri, L.; Otmani, A.; Portier, X.; Nouet, G.

doi:10.1016/j.matchar.2008.10.003

Cited by 23 publications

(12 citation statements)

References 8 publications

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“…NC may be tested (a) as template for the production of cylindrical nano-particles [15] . The precipitation or gel formation inside the tubular pores may be followed by thermal treatment to stabilize the fibres whereas the removal of the template could be obtained by combustion or hydrolysis of cellulose using cellulases [16] .…”

Section: Resultsmentioning

confidence: 99%

Nano-Tubular Cellulose for Bioprocess Technology Development

et al. 2012

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Delignified cellulosic material has shown a significant promotional effect on the alcoholic fermentation as yeast immobilization support. However, its potential for further biotechnological development is unexploited. This study reports the characterization of this tubular/porous cellulosic material, which was done by SEM, porosimetry and X-ray powder diffractometry. The results showed that the structure of nano-tubular cellulose (NC) justifies its suitability for use in “cold pasteurization” processes and its promoting activity in bioprocessing (fermentation). The last was explained by a glucose pump theory. Also, it was demonstrated that crystallization of viscous invert sugar solutions during freeze drying could not be otherwise achieved unless NC was present. This effect as well as the feasibility of extremely low temperature fermentation are due to reduction of the activation energy, and have facilitated the development of technologies such as wine fermentations at home scale (in a domestic refrigerator). Moreover, NC may lead to new perspectives in research such as the development of new composites, templates for cylindrical nano-particles, etc.

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Section: Resultsmentioning

confidence: 99%

Nano-Tubular Cellulose for Bioprocess Technology Development

et al. 2012

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“…Table 1 presents the structural data of monocrystalline CuInSe 2 [29,[43][44][45][46], Table 2 shows data obtained by powder diffraction structure refinement using Rietveld or Le Bail method [15,23,[47][48][49][50][51][52][53][54], Table 3 provides data obtained by powder and single crystal diffraction using traditional methods [16,27,28,55,56] and Table 4 provides data for thin films and nanocrystals [57][58][59][60][61][62][63]; more data for comparison can be found in [15,48,64] (in the last reference, theoretical values have also been considered). In Fig.…”

Section: Structure Of Cuinse 2 At Ambient Temperaturementioning

confidence: 99%

Thermal expansion of CuInSe2 in the 11–1,073 K range: an X-ray diffraction study

et al. 2013

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Structural and elastic properties of chalcopyritetype CuInSe 2 are determined in almost full stability range of temperature from 11 to 1,073 K, by in situ X-ray diffraction, employing a synchrotron-radiation source. The studied polycrystalline sample was prepared from a stoichiometric single crystal. Phase analysis reveals the formation of a trace amount of indium oxide impurity phase at the highest temperatures studied. From the obtained smooth latticeparameter dependencies on temperature, the temperature dependencies of thermal expansion coefficients are derived. These coefficients are found to follow the trends previously reported for narrow temperature intervals. The present results provide a clear experimental evidence that the linear expansion coefficient is slightly negative below 47 K in both, a and c, directions; this temperature limit is in between the previously reported theoretical value (35 K) and the experimental ones (60 and 80 K) of such limit.

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“…Furthermore, as will be demonstrated later in this paper, it is also a one-step processing method in achieving CZTS without other processes such as post-annealing. Many materials including CdTe [7] and CuInSe 2 [8] have been obtained from mechanical process. However, first-principles calculations reveal that CZTS is a material that can only be formed in very small chemical potential domains [9].…”

Section: Introductionmentioning

confidence: 99%