Here you will find a some relevant data of photovoltaic materials such as
electronic data (e.g. work functions), electrochemical data (e.g. a Pourbaix diagram),
physico-chemical data (e.g. melting points).
Although great care is taken to update these data, there is no guarantee for
completeness nor for correctness. If you want to contribute to these data, please feel free to send a
mail to the webmaster (see email below).
Zinc Blende structure:
Melting point | 1568 K
| Density | 6.34 g/cm3
| Heat of formation (300 K) | 376 kJ/mol
| Heat capacity (300 K) | 264 J/kg K
| Thermal conductivity (300 K) | 108 mW / cm K
| Refractive index | 3.56
| Band gap | 2.26 eV
|
Electrochemical Data
HTeO2+ | |
| | | = | TeO2 | + | H+
| | | (1) |
HTeO2+ | + | 3
H+ | + | 4 e- | = | Te | +
| H2O | (0 < pH < 5) | | (3)
| HTeO3- | + | 5 H+ | +
| 4 e- | = | Te | + | 3
H2O | | | (4)
| ZnTe | + | 2 H+ | + |
2 e- | = | H2Te | + |
Zn | | | (5)
| ZnTe | + | H+ | + | 2
e- | = | HTe- | + | Zn | | | (6)
| H2Te | | | | | =
| HTe- | +
| H+ | | | (7)
| Zn2+ | + | Te | + | 2
e- | = | ZnTe | | | | | (8)
| Zn(OH)2 | + | 2
H+ | + | Te | + | 2 e-
| = | ZnTe | + 2 H2O | | (9)
| Zn2+ | + | 2 e-
| | | = | Zn | | | | | (10)
| Zn(OH)2 | + | 2
H+ | + | 2 e- | = | Zn | +
| 2 H2O | | | (11)
| Zn2+ | + |
HTeO2+ | + | 3
H+ | + | 6 e- | = |
ZnTe | + 2 H2O | | (14)
| Te | + | 2 H+ | + | 2
e- | = | H2Te
| | | | | (16)
| Te | + | H+ | + | 2
e- | = | HTe-
| | | | | (17)
| 2 H+ | + | 2 e-
| | | = | H2
| | | | | (18)
|
Domain-Limit | Zn2+ /
Zn(OH)2 | : | pH 5.5 | | | (12)
| Domain-Limit |
HTeO2+ /
HTeO3- | : | pH
5.45 | | | (13)
| Domain-Limit
| HTeO3- /
TeO32- | : | pH
7.75 | | | (15)
|
Pourbaix-like diagram of ZnTe...
|