Effect of Al addition on the characteristics of Cu(In,Al)Se2 solar cells

Yamada, Satoshi; Tanaka, K.; Minemoto, Takashi; Takakura, Hideyuki

doi:10.1016/j.jcrysgro.2008.09.135

Cited by 26 publications

(16 citation statements)

References 8 publications

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“…The shift of peaks in the XRD pattern confirms that Al ions were doped into the lattices of samples. Similar results for CIAS were reported in the literature [24,28,29]. The XRD patterns of CIAS samples on ITO-coated glass substrates verify these results.…”

Section: Resultssupporting

confidence: 90%

“…The microstructures of samples were similar to those reported by Martín and Guillén [35] and Deepa et al [36]. Yamada et al [24] also reported that the grain size of CIAS decreased with a molar ratio of …”

Section: Resultssupporting

confidence: 87%

“…All samples showed enhanced cathodic current density under light irradiation, confirming that the samples are ptype semiconductors. These results well agree with those obtained from Mott-Schottky plots, Hall measurements and those reported in the literature [24,27]. Sample (A) shows a leakage current at an applied voltage in the dark.…”

Section: [Se]/[cu+3(al+in)] Molar Ratio In Samplessupporting

confidence: 92%

“…The samples displayed a hydrogen production rate of 0.855 ml cm À 2 at an applied voltage of À 0.4 V vs. a saturated calomel electrode (SCE) in 0.5 M H 2 SO 4 solution. Because of the high cost of gallium element in CIGS samples, several studies reported the use of an inexpensive Aldoped CuInSe 2 photo-absorber layer to improve the solar conversion efficiency of CuInSe 2 solar cells [23,24]. Theoretically, the optical energy band gap of CuIn x Al 1À x Se 2 can be varied from 1.0 eV (CuInSe 2 ) to 2.7 eV (CuAlSe 2 ) by altering the amount of Al dopant.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Photoelectrochemical water splitting using Cu(In,Al)Se2 photoelectrodes developed via selenization of sputtered Cu–In–Al metal precursors

Cheng

Hinaro

Antony

2016

Solar Energy Materials and Solar Cells

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Section: Resultssupporting

confidence: 90%

Section: Resultssupporting

confidence: 87%

Section: [Se]/[cu+3(al+in)] Molar Ratio In Samplessupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Photoelectrochemical water splitting using Cu(In,Al)Se2 photoelectrodes developed via selenization of sputtered Cu–In–Al metal precursors

Cheng

Hinaro

Antony

2016

Solar Energy Materials and Solar Cells

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“…The E g values increase with increase in annealing temperature. According to the reports of Yamada et al [16] and Reshak et al [17], increasing Al or S contents will increase the band gap. This increase may be attributed to a decrease in particle size, which leads to an increase in strain [18], and/or to an increase in Al/(Inþ Al) ratio (observed from compositional analysis).…”

Section: Optical Propertiesmentioning

confidence: 95%

Fabrication of Cu(In,Al)(S,Se)2 films by sulfurization and selenization of co-sputtered Cu-In-Al precursors

et al. 2014

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Aluminum‐Based Chalcopyrite Thin Films and Solar Cells

Ishizuka,

Taguchi

2024

Advanced Energy Materials

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Aluminum‐based chalcopyrite materials have attracted attention because of the wide controllability range of their material properties and potential for use in energy‐conversion devices. Herein, CuAlSe2‐based thin‐film growth and solar cell device properties are discussed. Ternary CuAlSe2 thin films are relatively unstable and decompose weeks after film growth, even when preserved in a dry box. However, alloying with elemental In led to significant improvements in stability. Cu(In,Al)Se2 (CIAS) solar cells yield better photovoltaic performance than CuInSe2 cells, although the effective range of Al concentration that can improve device performance is narrower than that of elemental Ga in Cu(In,Ga)Se2 (CIGS). A decrease in the alkali metal concentration in CIAS films with increasing Al concentration is observed, indicating that the formation energy of alkali‐metal substitutional defects on the Cu site is high, and/or Al‐related complex defects formed are kinetically stable and difficult to replace with alkali metals once they form. Although the direct observation of alkali metals in the bulk (grain interior) of chalcopyrite CuInSe2 and CIGS films has been difficult to date, this result can serve as indirect evidence of the presence of alkali metals in the bulk of CuInSe2 films.

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Effect of Al addition on the characteristics of Cu(In,Al)Se2 solar cells

Cited by 26 publications

References 8 publications

Photoelectrochemical water splitting using Cu(In,Al)Se2 photoelectrodes developed via selenization of sputtered Cu–In–Al metal precursors

Photoelectrochemical water splitting using Cu(In,Al)Se2 photoelectrodes developed via selenization of sputtered Cu–In–Al metal precursors

Fabrication of Cu(In,Al)(S,Se)2 films by sulfurization and selenization of co-sputtered Cu-In-Al precursors

Aluminum‐Based Chalcopyrite Thin Films and Solar Cells

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