Activation energy of local currents in solar cells measured by thermal methods
✍ Scribed by I. Konovalov; V. Strikha; O. Breitenstein
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 257 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1062-7995
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✦ Synopsis
A new technique based on dynamic precision contact thermal measurements of the local current density of solar cells in the dark was developed to determine and map the activation energy of local currents. Because the activation energy or, more generally, the temperature dependence of the current density at constant bias in the dark is determined by the conduction mechanism, measurements of the activation energy may help to distinguish between various possible conduction mechanisms dominating in dierent regions of the cell. An application of this technique to multicrystalline silicon solar cells is presented.