![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
3. Light and elevated temperature degradation
Light and temperature changes can also induce some degradation in the solar cell materials. For example, in the case of amorphous silicon, the inclusion of about 10% hydrogen (a-Si:H) serves to saturate many of the dangling bonds. Figure 9 shows schematically the atomic structure of a-Si:H material. With it, the density of states in the forbidden gap is drastically reduced, and the material can be doped. However, the saturation of dangling bonds with hydrogen is not totally stable. During illumination, the bonds are again broken due to recombination or photon absorption. This property, known as the Staebler–Wronski effect,...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Characterization and properties of matter
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Light and elevated temperature degradation
Bibliographical sources
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference