In:
Solar RRL, Wiley, Vol. 2, No. 4 ( 2018-04)
Abstract:
Inverted configuration perovskite solar cells containing a NiO x layer fabricated by using a low‐temperature process have yielded highly efficient, flexible devices. However, the instability of these devices has limited their commercial application. Here, we report high‐quality, ligand‐free NiO x nanocrystals, prepared directly through a facile organic solvent method, that form a stable ink when dispersed in an ethanol solvent. Rigid and flexible devices containing a NiO x layer (active area, 1.02 cm 2 ) fabricated with this ink at low‐temperature achieved efficiencies of 18.49 and 15.89%, respectively. In addition, the devices retain 90% of their initial performance at 500 h in a damp‐heat test (85 °C and 85% relative humidity) due to there being less hydroxyl functional groups and H 2 O molecules on the NiO x surface, which degrade perovskite. Thus, we are able to successfully synthesize ligand‐free NiO x for the low‐temperature production of a high‐performance, stable perovskite solar cell.
Type of Medium:
Online Resource
ISSN:
2367-198X
,
2367-198X
DOI:
10.1002/solr.201800004
Language:
English
Publisher:
Wiley
Publication Date:
2018
detail.hit.zdb_id:
2882014-9
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