14.7% efficient mesoscopic perovskite solar cells using single walled carbon nanotubes/carbon composite counter electrodes

14.7% efficient mesoscopic perovskite solar cells using single walled carbon nanotubes/carbon composite counter electrodes

A single walled carbon nanotube (SWCNT) possesses excellent hole conductivity. This work communicates an investigation of perovskite solar cells using a mesoscopic TiO2/Al2O3 structure as a framework in combination with a certain amount of SWCNT-doped graphite/carbon black counter electrode material...

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Veröffentlicht in:Nanoscale 2016-01, Vol.8 (12), p.6379-6385
Hauptverfasser: Li, Hao, Cao, Kun, Cui, Jin, Liu, Shuangshuang, Qiao, Xianfeng, Shen, Yan, Wang, Mingkui
Format: Artikel
Sprache:eng
Schlagworte:
Carbon
Devices
Nanostructure
Perovskites
Photovoltaic cells
Single wall carbon nanotubes
Solar cells
Titanium dioxide
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Zusammenfassung:A single walled carbon nanotube (SWCNT) possesses excellent hole conductivity. This work communicates an investigation of perovskite solar cells using a mesoscopic TiO2/Al2O3 structure as a framework in combination with a certain amount of SWCNT-doped graphite/carbon black counter electrode material. The CH3NH3PbI3-based device achieves a power conversion efficiency of 14.7% under AM 1.5G illumination. Detailed investigations show an increased charge collection in this device compared to that without the SWCNT additive.
ISSN:2040-3364
2040-3372
DOI:10.1039/c5nr07347b