Ga–Se system

100 accepted literature values from 1 paper(s) (experimental 73, model 27); 0 calculated phase diagram(s).

Data: JSON · CSV · interactive explorer · phases (9) · papers (bibliography) · Markdown

Accepted values by evidence class
Evidence classValues
experimental73
model27
Accepted values by property group
Property groupValues
invariant reaction58
formation16
heat capacity / entropy / enthalpy26

Convex hulls: Materials Project DFT hull · OQMD DFT hull

Invariant reactions (literature)

Invariant reactions reported in the literature for the Ga–Se system (58)
T (K)Reaction / phasesCompositions (mole fraction)ClassSourceLocationQuote
1293congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6; L: Se 0.6experimental[1] Zheng 2008
cites Klemm 1934 doi
Table 2, p. 5, row 32
report
1293congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6; L: Se 0.6experimental[1] Zheng 2008
cites Rustamov 1965
Table 2, p. 5, row 34
report
1291congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.606; L: Se 0.606experimental[1] Zheng 2008
cites Shtanov 1998
Table 2, p. 5, row 41
report
1283congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6004; L: Se 0.599model[1] Zheng 2008Table 2, p. 5, row 42
report
1283congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6; L: Se 0.6experimental[1] Zheng 2008
cites Palatnik 1965
Table 2, p. 5, row 33
report
1283congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6; L: Se 0.6experimental[1] Zheng 2008
cites Mikkelsen 1981 doi
Table 2, p. 5, row 39
report
1283congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6; L: Se 0.6experimental[1] Zheng 2008
cites Ollitraut-Fichet 1980
Table 2, p. 5, row 38
report
1283congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6; L: Se 0.6experimental[1] Zheng 2008
cites Palatnik 1966
Table 2, p. 5, row 35
report
1283congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6; L: Se 0.6experimental[1] Zheng 2008
cites Dieleman 1971 doi
Table 2, p. 5, row 36
report
1280congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6; L: Se 0.6experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 40
report
1280critical point: L -> L1 + L2L: Se 0.253model[1] Zheng 2008Table 2, p. 5, row 4
report
1279critical point: L -> L1 + L2L: Se 0.243experimental[1] Zheng 2008
cites Ollitraut-Fichet 1980
Table 2, p. 5, row 2
report
1278congruent melting: α-Ga2Se3 -> Lα-Ga2Se3: Se 0.6; L: Se 0.6experimental[1] Zheng 2008
cites Suzuki 1974 doi
Table 2, p. 5, row 37
report
1268critical point: L -> L1 + L2L: Se 0.23experimental[1] Zheng 2008
cites Suzuki 1974 doi
Table 2, p. 5, row 1
report
1267critical point: L -> L1 + L2L: Se 0.24experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 3
report
1233congruent melting: GaSe -> LGaSe: Se 0.5; L: Se 0.5experimental[1] Zheng 2008
cites Rustamov 1965
Table 2, p. 5, row 16
report
1233congruent melting: GaSe -> LGaSe: Se 0.5; L: Se 0.5experimental[1] Zheng 2008
cites Klemm 1934 doi
Table 2, p. 5, row 15
report
1223congruent melting: GaSe -> LGaSe: Se 0.5; L: Se 0.5experimental[1] Zheng 2008
cites Palatnik 1966
Table 2, p. 5, row 17
report
1218congruent melting: GaSe -> LGaSe: Se 0.5; L: Se 0.5experimental[1] Zheng 2008
cites Ollitraut-Fichet 1980
Table 2, p. 5, row 20
report
1211congruent melting: GaSe -> LGaSe: Se 0.5; L: Se 0.5experimental[1] Zheng 2008
cites Suzuki 1974 doi
Table 2, p. 5, row 19
report
1211congruent melting: GaSe -> LGaSe: Se 0.5; L: Se 0.5experimental[1] Zheng 2008
cites Dieleman 1971 doi
Table 2, p. 5, row 18
report
1210congruent melting: GaSe -> LGaSe: Se 0.5; L: Se 0.5model[1] Zheng 2008Table 2, p. 5, row 23
report
1210congruent melting: GaSe -> LGaSe: Se 0.482; L: Se 0.482experimental[1] Zheng 2008
cites Shtanov 1998
Table 2, p. 5, row 22
report
1210congruent melting: GaSe -> LGaSe: Se 0.5; L: Se 0.5experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 21
report
1190monotectic: L1 + L2 -> GaSeL1: Se 0.075; L2: Se 0.455; GaSe: Se 0.5experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 7
report
1188monotectic: L1 + L2 -> GaSeL1: Se 0.055; L2: Se 0.44; GaSe: Se 0.5experimental[1] Zheng 2008
cites Suzuki 1974 doi
Table 2, p. 5, row 5
report
1187monotectic: L1 + L2 -> GaSeL1: Se 0.082; L2: Se 0.42; GaSe: Se 0.5experimental[1] Zheng 2008
cites Ollitraut-Fichet 1980
Table 2, p. 5, row 6
report
1185other: GaSe + α-Ga2Se3 -> LGaSe: Se 0.5; α-Ga2Se3: Se 0.6; L: Se 0.55experimental[1] Zheng 2008
cites Rustamov 1965
Table 2, p. 5, row 24
report
1185monotectic: L1 + L2 -> GaSeL1: Se 0.078; L2: Se 0.412; GaSe: Se 0.5model[1] Zheng 2008Table 2, p. 5, row 9
report
1185monotectic: L1 + L2 -> GaSeGaSe: Se 0.48experimental[1] Zheng 2008
cites Shtanov 1998
Table 2, p. 5, row 8
report
1163other: GaSe + α-Ga2Se3 -> LGaSe: Se 0.5; α-Ga2Se3: Se 0.595; L: Se 0.554model[1] Zheng 2008Table 2, p. 5, row 31
report
1163other: GaSe + α-Ga2Se3 -> LGaSe: Se 0.5; α-Ga2Se3: Se 0.6; L: Se 0.55experimental[1] Zheng 2008
cites Ollitraut-Fichet 1980
Table 2, p. 5, row 28
report
1162other: GaSe + α-Ga2Se3 -> LGaSe: Se 0.5; α-Ga2Se3: Se 0.6; L: Se 0.551experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 29
report
1161other: GaSe + α-Ga2Se3 -> LGaSe: Ga 0.5, Se 0.5; α-Ga2Se3: Ga 0.4, Se 0.6; L: Se 0.56experimental[1] Zheng 2008
cites Shtanov 1998
Table 2, p. 5, row 30
report
1160other: GaSe + α-Ga2Se3 -> LGaSe: Se 0.5; α-Ga2Se3: Se 0.594; L: Se 0.551experimental[1] Zheng 2008
cites Dieleman 1971 doi
Table 2, p. 5, row 26
report
1157other: GaSe + α-Ga2Se3 -> LGaSe: Se 0.5; α-Ga2Se3: Se 0.6; L: Se 0.55experimental[1] Zheng 2008
cites Suzuki 1974 doi
Table 2, p. 5, row 27
report
1153other: GaSe + α-Ga2Se3 -> LGaSe: Se 0.5; α-Ga2Se3: Se 0.5976; L: Se 0.554experimental[1] Zheng 2008
cites Palatnik 1966
Table 2, p. 5, row 25
report
1004polymorphic: β-Ga2Se3 -> α-Ga2Se3β-Ga2Se3: Se 0.6; α-Ga2Se3: Se 0.6experimental[1] Zheng 2008
cites Muhsin 2003
Table 2, p. 5, row 49
report
1003polymorphic: β-Ga2Se3 -> α-Ga2Se3β-Ga2Se3: Se 0.6; α-Ga2Se3: Se 0.6experimental[1] Zheng 2008
cites Ollitraut-Fichet 1980
Table 2, p. 5, row 45
report
1003polymorphic: β-Ga2Se3 -> α-Ga2Se3β-Ga2Se3: Se 0.6; α-Ga2Se3: Se 0.6experimental[1] Zheng 2008
cites Mikkelsen 1981 doi
Table 2, p. 5, row 46
report
994polymorphic: β-Ga2Se3 -> α-Ga2Se3β-Ga2Se3: Se 0.6; α-Ga2Se3: Se 0.6experimental[1] Zheng 2008
cites Muhsin 2003
Table 2, p. 5, row 48
report
968polymorphic: β-Ga2Se3 -> α-Ga2Se3β-Ga2Se3: Se 0.605; α-Ga2Se3: Se 0.605experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 47
report
967polymorphic: β-Ga2Se3 -> α-Ga2Se3β-Ga2Se3: Se 0.6; α-Ga2Se3: Se 0.6model[1] Zheng 2008Table 2, p. 5, row 50
report
918peritectic: β-Ga2Se3 + α-Ga2Se3 -> Lβ-Ga2Se3: Se 0.607; α-Ga2Se3: Se 0.61experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 51
report
918peritectic: β-Ga2Se3 + α-Ga2Se3 -> Lβ-Ga2Se3: Se 0.6; α-Ga2Se3: Se 0.61; L: Se 0.983model[1] Zheng 2008Table 2, p. 5, row 52
report
898eutectoid: GaSe + α-Ga2Se3 -> β-Ga2Se3GaSe: Se 0.5; α-Ga2Se3: Se 0.599; β-Ga2Se3: Se 0.602experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 43
report
898eutectoid: GaSe + α-Ga2Se3 -> β-Ga2Se3GaSe: Se 0.5; α-Ga2Se3: Se 0.593; β-Ga2Se3: Se 0.6model[1] Zheng 2008Table 2, p. 5, row 44
report
494other: β-Ga2Se3 + Se -> Lβ-Ga2Se3: Se 0.6; Se: Se 1; L: Se 1model[1] Zheng 2008Table 2, p. 5, row 58
report
493other: β-Ga2Se3 + Se -> Lβ-Ga2Se3: Se 0.6; Se: Se 1; L: Se 1experimental[1] Zheng 2008
cites Suzuki 1974 doi
Table 2, p. 5, row 55
report
493other: β-Ga2Se3 + Se -> Lβ-Ga2Se3: Se 0.6; Se: Se 1; L: Se 1experimental[1] Zheng 2008
cites Ollitraut-Fichet 1980
Table 2, p. 5, row 56
report
493other: β-Ga2Se3 + Se -> Lβ-Ga2Se3: Se 0.6; Se: Se 1; L: Se 1experimental[1] Zheng 2008
cites Rustamov 1965
Table 2, p. 5, row 53
report
493other: β-Ga2Se3 + Se -> Lβ-Ga2Se3: Se 0.6; Se: Se 1; L: Se 1experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 57
report
478other: β-Ga2Se3 + Se -> Lβ-Ga2Se3: Se 0.6024; Se: Se 1; L: Se 1experimental[1] Zheng 2008
cites Palatnik 1966
Table 2, p. 5, row 54
report
303other: Ga + GaSe -> LGa: Se 0; GaSe: Se 0.5; L: Se 0experimental[1] Zheng 2008
cites Dieleman 1982
Table 2, p. 5, row 13
report
303other: Ga + GaSe -> LGa: Se 0; GaSe: Se 0.5; L: Se 0experimental[1] Zheng 2008
cites Rustamov 1965
Table 2, p. 5, row 10
report
303other: Ga + GaSe -> LGa: Se 0; GaSe: Se 0.5; L: Se 0experimental[1] Zheng 2008
cites Ollitraut-Fichet 1980
Table 2, p. 5, row 12
report
303other: Ga + GaSe -> LGa: Se 0; GaSe: Se 0.5; L: Se 0model[1] Zheng 2008Table 2, p. 5, row 14
report
303other: Ga + GaSe -> LGa: Se 0; GaSe: Se 0.5; L: Se 0experimental[1] Zheng 2008
cites Suzuki 1974 doi
Table 2, p. 5, row 11
report

Formation enthalpies

Literature values in kJ/mol-atom where the per-atom basis is known. DFT columns: the lowest-energy entry at the same composition (Materials Project 2026.04.13, OQMD v1.8; different energy references, never averaged), from dft_parity.json.

Enthalpies of formation, Ga–Se system (16)
PhaseCompoundValueT (K)ClassMP DFT (kJ/mol-atom)OQMD DFT (kJ/mol-atom)SourceLocationQuote
GaSeGaSe-79.496 kJ/mol-atom298.15model-79.831 (mp-aaaaaqug)-57.465 (oqmd-1971260)[1] Zheng 2008
cites Mills 1974
Table 3, p. 6, row 4
report
GaSeGaSe-79.496 kJ/mol-atom298.15experimental-79.831 (mp-aaaaaqug)-57.465 (oqmd-1971260)[1] Zheng 2008
cites Mamedov 1969
Table 3, p. 6, row 3
report
GaSeGaSe-79.496 kJ/mol-atom298.15model-79.831 (mp-aaaaaqug)-57.465 (oqmd-1971260)[1] Zheng 2008
cites Barin 1995 doi
Table 3, p. 6, row 5
report
GaSeGaSe-78.9705 kJ/mol-atom298.15model-79.831 (mp-aaaaaqug)-57.465 (oqmd-1971260)[1] Zheng 2008Table 3, p. 6, row 7
report
GaSeGaSe-78.85 kJ/mol-atom298.15experimental-79.831 (mp-aaaaaqug)-57.465 (oqmd-1971260)[1] Zheng 2008
cites Zavrazhnov 2003
Table 3, p. 6, row 6
report
GaSeGaSe-73.22 kJ/mol-atom298.15experimental-79.831 (mp-aaaaaqug)-57.465 (oqmd-1971260)[1] Zheng 2008
cites Hahn 1956 doi
Table 3, p. 6, row 1
report
GaSeGaSe-71.75 kJ/mol-atom298.15experimental-79.831 (mp-aaaaaqug)-57.465 (oqmd-1971260)[1] Zheng 2008
cites Kh 1968
Table 3, p. 6, row 2
report
β-Ga2Se3Ga2Se3-92.048 kJ/mol-atom298.15experimental-83.763 (mp-aaaaabzo)-57.081 (oqmd-2169176)[1] Zheng 2008
cites Gadzhiev 1961
Table 3, p. 6, row 9
report
β-Ga2Se3Ga2Se3-87.864 kJ/mol-atom298.15experimental-83.763 (mp-aaaaabzo)-57.081 (oqmd-2169176)[1] Zheng 2008
cites Hahn 1956 doi
Table 3, p. 6, row 8
report
β-Ga2Se3Ga2Se3-81.7554 kJ/mol-atom298.15experimental-83.763 (mp-aaaaabzo)-57.081 (oqmd-2169176)[1] Zheng 2008
cites Mamedov 1969
Table 3, p. 6, row 12
report
β-Ga2Se3Ga2Se3-81.7554 kJ/mol-atom298.15model-83.763 (mp-aaaaabzo)-57.081 (oqmd-2169176)[1] Zheng 2008
cites Barin 1995 doi
Table 3, p. 6, row 14
report
β-Ga2Se3Ga2Se3-81.7554 kJ/mol-atom298.15model-83.763 (mp-aaaaabzo)-57.081 (oqmd-2169176)[1] Zheng 2008
cites Mills 1974
Table 3, p. 6, row 13
report
β-Ga2Se3Ga2Se3-81.002 kJ/mol-atom298.15experimental-83.763 (mp-aaaaabzo)-57.081 (oqmd-2169176)[1] Zheng 2008
cites Mamedov 1969
Table 3, p. 6, row 12
report
β-Ga2Se3Ga2Se3-79.7396 kJ/mol-atom298.15model-83.763 (mp-aaaaabzo)-57.081 (oqmd-2169176)[1] Zheng 2008Table 3, p. 6, row 15
report
β-Ga2Se3Ga2Se3-75.312 kJ/mol-atom298.15experimental-83.763 (mp-aaaaabzo)-57.081 (oqmd-2169176)[1] Zheng 2008
cites Effendiev 1965
Table 3, p. 6, row 10
report
β-Ga2Se3Ga2Se3-73.722 kJ/mol-atom298.15experimental-83.763 (mp-aaaaabzo)-57.081 (oqmd-2169176)[1] Zheng 2008
cites Sharifov 1967
Table 3, p. 6, row 11
report

Other properties

Heat capacity / entropy / enthalpy (26)

Heat capacity / entropy / enthalpy, Ga–Se system
PropertyValueT (K)Phases / compositionClassSourceLocationQuote
Entropy
printed: S°298
35.085 J/mol-atom/K298.15GaSe
alloy: Se 0.5
model[1] Zheng 2008Table 4, p. 6, row 9
report
Entropy
printed: S°298
35.145 J/mol-atom/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Mamedov 1967
Table 4, p. 6, row 1
report
Entropy
printed: S°298
35.125 J/mol-atom/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Mamedov 1970
Table 4, p. 6, row 3
report
Entropy
printed: S°298
35.115 J/mol-atom/K298.15GaSe
alloy: Se 0.5
model[1] Zheng 2008
cites Rymkevich 1975
Table 4, p. 6, row 6
report
Entropy
printed: S°298
35.085 J/mol-atom/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Tyurin 2004
Table 4, p. 6, row 8
report
Entropy
printed: S°298
35.125 J/mol-atom/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Kerimov 1971
Table 4, p. 6, row 4
report
Entropy
printed: S°298
34.45 J/mol-atom/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Abbasov 1969
Table 4, p. 6, row 2
report
Entropy
printed: S°298
33.95 J/mol-atom/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Zavrazhnov 2003
Table 4, p. 6, row 7
report
Entropy
printed: S°298
35.1455 J/mol-atom/K298.15GaSe
alloy: Se 0.5
model[1] Zheng 2008
cites Mills 1974
Table 4, p. 6, row 5
report
Entropy
printed: S°298
36.14 J/mol-atom/K298.15β-Ga2Se3
alloy: Se 0.6
model[1] Zheng 2008Table 4, p. 6, row 14
report
Entropy
printed: S°298
36.652 J/mol-atom/K298.15β-Ga2Se3
alloy: Se 0.6
experimental[1] Zheng 2008
cites Mamedov 1969
Table 4, p. 6, row 10
report
Entropy
printed: S°298
36.08 J/mol-atom/K298.15β-Ga2Se3
alloy: Se 0.6
experimental[1] Zheng 2008
cites Tyurin 2005 doi
Table 4, p. 6, row 13
report
Entropy
printed: S°298
35.9824 J/mol-atom/K298.15β-Ga2Se3
alloy: Se 0.6
model[1] Zheng 2008
cites Mills 1974
Table 4, p. 6, row 11
report
Entropy
printed: S°298
35.9824 J/mol-atom/K298.15β-Ga2Se3
alloy: Se 0.6
model[1] Zheng 2008
cites Barin 1995 doi
Table 4, p. 6, row 12
report
Heat capacity
printed: Cp°298
48.32 J/mol (basis unstated)/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Zavrazhnov 2004 doi
Table 5, p. 7, row 6
report
Heat capacity
printed: Cp°298
47.89 J/mol (basis unstated)/K298.15GaSe
alloy: Se 0.5
model[1] Zheng 2008Table 5, p. 7, row 7
report
Heat capacity
printed: Cp°298
48.49 J/mol (basis unstated)/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Mamedov 1967
Table 5, p. 7, row 1
report
Heat capacity
printed: Cp°298
47.79 J/mol (basis unstated)/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Okhotin 1998
Table 5, p. 7, row 4
report
Heat capacity
printed: Cp°298
47.21 J/mol (basis unstated)/K298.15GaSe
alloy: Se 0.5
model[1] Zheng 2008
cites Rymkevich 1975
Table 5, p. 7, row 3
report
Heat capacity
printed: Cp°298
47.67 J/mol (basis unstated)/K298.15GaSe
alloy: Se 0.5
experimental[1] Zheng 2008
cites Tyurin 2004
Table 5, p. 7, row 5
report
Heat capacity
printed: Cp°298
48.51 J/mol (basis unstated)/K298.15GaSe
alloy: Se 0.5
model[1] Zheng 2008
cites Mills 1974
Table 5, p. 7, row 2
report
Heat capacity
printed: Cp°298
115.8 J/mol (basis unstated)/K298.15β-Ga2Se3
alloy: Se 0.6
experimental[1] Zheng 2008
cites Zavrazhnov 2004 doi
Table 5, p. 7, row 10
report
Heat capacity
printed: Cp°298
120.8 J/mol (basis unstated)/K298.15β-Ga2Se3
alloy: Se 0.6
experimental[1] Zheng 2008
cites Tyurin 2005 doi
Table 5, p. 7, row 11
report
Heat capacity
printed: Cp°298
115.8 J/mol (basis unstated)/K298.15β-Ga2Se3
alloy: Se 0.6
model[1] Zheng 2008Table 5, p. 7, row 12
report
Heat capacity
printed: Cp°298
116.3 J/mol (basis unstated)/K298.15β-Ga2Se3
alloy: Se 0.6
model[1] Zheng 2008
cites Mills 1974
Table 5, p. 7, row 9
report
Heat capacity
printed: Cp°298
117.57 J/mol (basis unstated)/K298.15β-Ga2Se3
alloy: Se 0.6
experimental[1] Zheng 2008
cites Gadzhiev 1961
Table 5, p. 7, row 8
report

Sources

Reporting papers the values were read from (a value cited from another work names that work in its row).

  1. F. Zheng, J.Y. Shen, Y.Q. Liu, W.K. Kim, M.Y. Chu, M. Ider et al., Thermodynamic optimization of the Ga–Se system, Calphad 32, 432-438 (2008). doi:10.1016/j.calphad.2008.03.004