Abstract
We present experimental results on low-frequency noise characterizations of high-efficiency perovskite solar cells (PSCs). It is shown that annealing the device in dry oxygen results in significant enhancement in the power conversion efficiency of the device. Systematic investigations on the photothermal deflection spectroscopy and the low-frequency excess noise of the devices a indicate that oxygen annealing of the device resulted in the passivation of traps located at the grain boundaries of the perovskite films as well as the perovskite-spiro-MeOTAD interface.
Original language | English |
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Title of host publication | 2015 International Conference on Noise and Fluctuations, ICNF 2015 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781467383356 |
DOIs | |
Publication status | Published - Oct 2 2015 |
Externally published | Yes |
Event | International Conference on Noise and Fluctuations, ICNF 2015 - Xian, China Duration: Jun 2 2015 → Jun 6 2015 |
Conference
Conference | International Conference on Noise and Fluctuations, ICNF 2015 |
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Country | China |
City | Xian |
Period | 6/2/15 → 6/6/15 |
Keywords
- low-frequency noise
- oxygen annealing
- perovskite solar cells
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Acoustics and Ultrasonics