Details

Autor(en) / Beteiligte

• Singh, Apoorva
• Nayak, Pabitra K.
• Banerjee, Suman
• Wang, Zhiping
• Wang, Jacob Tse‐Wei
• Snaith, Henry J.
• Narayan, K.S.

Titel

Insights Into the Microscopic and Degradation Processes in Hybrid Perovskite Solar Cells Using Noise Spectroscopy

Ist Teil von

• Solar RRL, 2018-01, Vol.2 (1), p.n/a

Erscheinungsjahr

2018

Quelle

Wiley Online Library Journals【Remote access available】

Beschreibungen/Notizen

• We report a clear correlation of the features observed in photocurrent noise‐fluctuations to the performance parameters of hybrid perovskite solar cells. The general trend of increasing noise amplitude which spreads over a wider range of frequency as a function of aging is established. High‐resolution spatial mapping of the photocurrent in typical devices and the associated variation of the noise spectrum confirms the underlying trend. Hybrid perovskite solar cells of different geometrical structures and at different degradation stages are investigated using noise spectroscopy. A direct correlation between the photocurrent fluctuations and the device performance is established. The results are verified with the complementary studies using thermal admittance spectroscopy and local illumination photocurrent scanning. The insights developed and the approach, potentially have huge implication in monitoring stability and degradation in solar cell devices and large area panels.