Abstract
We present the analysis of photovoltaic properties in perovskite solar cells to explore the impact of excitonic features, disorder, recombination, and space charge effects using temperature and photo-intensity dependence. Photo-intensity dependence reveals an enhancement of classical Einstein relation due to the presence of traps and formation of space charge effects resulting in reduced conductivity. Exciton versus free charge density upon photo-excitation is analyzed from temperature dependence of photocurrent. Temperature dependence of V OC is excellently explained by considering a combined energetic disorder in a solar cell, and a moderately high value of variance ∼125 meV is obtained.
| Original language | English |
|---|---|
| Article number | 8051034 |
| Pages (from-to) | 1681-1686 |
| Number of pages | 6 |
| Journal | IEEE Journal of Photovoltaics |
| Volume | 7 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Nov 2017 |
Bibliographical note
Publisher Copyright:© 2011-2012 IEEE.
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Keywords
- Disorder
- exciton
- photovoltaic cell
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