Microcrystalline Silicon Pin Solar Cells - Investigation of the Optoelectronic Properties -
Main Article Content
Abstract
Microcrystalline silicon deposited by plasma enhanced chemical vapor deposition is a new material for solar cell applications. To optimize the cell performance microcrystalline solar cells deposited at different silane concentration (2 - 7.2 %) in hydrogen were investigated. For these cells four characteristic features were found: the dark current of the cells decreases, the open circuit voltage increases and the blue response is reduced with increasing silane concentration. The fill factor of the pin diodes shows a maximum of larger than 70 % for cells prepared at a silane concentration between 3.5 - 5.5 %. To study the transport and recombination of the diodes we have investigated the temperature dependence of these diodes and compared the experimentally determined optoelectronic properties with simulated data. The simulations reveal that the equilibrium carrier concentration of free carriers decreases and the influence of the nucleation region of the i-layer on the blue response increases with larger silane concentration.
Article Details
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
-
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
-
ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
