Direct growth of heteroepitaxial CuInSe2 layers on Si substrates

Tiwari, Ayodhya N.; Blunier, S.; Kessler, K.; Železný, V.; Zogg, H.

doi:10.1063/1.112723

Cited by 36 publications

(22 citation statements)

References 8 publications

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“…The peaks at 259, 102, and 156 cm −1 correspond to the Cu 2 Se, In 2 Se 3 , and OVC, respectively 22–24. Two weak peaks located at 212 and 229 cm −1 , are the B 2 and/or E modes of α‐CIS 17, 25, 26. The CA‐CIS phase has an energy formation difference of only 2 meV per atom with that of α‐CIS 14, 15.…”

Section: Resultsmentioning

confidence: 99%

Formation of CuInSe₂ from Cu₂Se and In₂Se₃ compounds

Chen

Wang

2011

Physica Status Solidi (a)

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Chalcopyrite α‐CuInSe2 (α‐CIS) was prepared from mixed powders of Cu2Se and In2Se3 by annealing in the Se‐ and the non‐Se environments. The mechanically ground powders were in an overall amorphous state. The mechanical alloying produced Cu3Se2 and CuSe compounds. At relatively low temperature, Cu3Se2 decomposed, Cu2−xSe and CuSe formed. The reaction for the formation of α‐CuInSe2 occurred essentially at a temperature at ∼350 °C in both the Se‐ and the non‐Se environments. In the non‐Se environment, reactions occurred by a solid–solid reaction and a certain amount of Se were released from the mixed powder, resulting in poor crystalline α‐CuInSe2 powders. When annealed in the Se environment, low‐melting Se‐rich Cu‐Se compounds were produced during reaction. The reactions occurred by a liquid–solid reaction above 450 °C. Large‐grained and good crystalline quality of chalcopyrite CIS with near stoichiometric atomic ratio was obtained above 450 °C.

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Section: Resultsmentioning

confidence: 99%

Formation of CuInSe₂ from Cu₂Se and In₂Se₃ compounds

Chen

Wang

2011

Physica Status Solidi (a)

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“…To give an example, films of CuInSe 2 have been grown using such methods as molecular beam epitaxy (MBE) [38][39][40], liquid-phase epitaxy [41], and halogen vapor phase epitaxy (VPE) [42]. But this methods are quite complicated, so the synthesis of core/shell materials based on an CIS core and organic surfactant as shell can be an interesting alternative on the development of the photovoltaic devices.…”

Section: Synthesis Strategies Of Core/shell Materialsmentioning

confidence: 99%

Core/shell nanomaterials in photovoltaics

Arici

Meißner

Schäffler

et al. 2003

International Journal of Photoenergy

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Hybrid materials consist of inorganic nanoparticles embedded in polymer matrices. An advantage of these materials is to combine the unique properties of one or more kinds of inorganic nanoparticles with the film forming properties of polymers. Most of the polymers can be processed from solution at room temperature enabling the manufacturing of large area, flexible and light weight devices. To exploit the full potential for the technological applications of the nanocrystalline materials, it is very important to endow them with good processing attributes. The surface of the inorganic cluster can be modified during the synthesis by organic surfactants. The surfactant can alter the dispersion characteristic of the particles by initiating attractive forces with the polymer chains, in which the particles should be homogenously arranged. In this review, we present wet chemical methods for the synthesis of nanoparticles, which have been used as photovoltaic materials in polymer blends. The photovoltaic performance of various inorganic/organic hybrid solar cells, prepared via spin-coating will be the focus of this contribution.

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“…It is well known that the electronic properties of CIS are strongly dependent on the atomic composition, especially on the Cu-to-In metal ratio, as well as on the growth conditions [3][4][5]. Films grown under In-excess conditions often show high resistivity and small average grain size.…”

Section: Introductionmentioning

confidence: 99%