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2H-NbS2 film as a novel counter electrode for meso-structured perovskite solar cells.

ABSTRACT: We report the use of 2H-NbS2 film as a novel counter electrode in perovskite solar cells fabricated with a cold isostatic pressing method. The 2H-NbS2 film, which was prepared through an exfoliation method followed by restacking from LixNbS2 powder, shows high electrical conductivity of 8.7?×?103?S?cm-1 and work function of 5.20?eV. The two-dimensional transition metal dichalcogenide was used for the first time as a counter electrode in meso-structured perovskite solar cells. Through this process, we demonstrated a new alternative to noble metals. The perovskite solar cell base on the 2H-NbS2 counter electrode showed an open-circuit voltage of 1.046?V, comparable to that of gold, and a power conversion efficiency of 8.3%.

SUBMITTER: Shao F

PROVIDER: S-EPMC5935697 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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2H-NbS2 film as a novel counter electrode for meso-structured perovskite solar cells.

Shao Feng F Tian Zhangliu Z Qin Peng P Bu Kejun K Zhao Wei W Xu Li L Wang Deliang D Huang Fuqiang F

Scientific reports 20180504 1

We report the use of 2H-NbS2 film as a novel counter electrode in perovskite solar cells fabricated with a cold isostatic pressing method. The 2H-NbS2 film, which was prepared through an exfoliation method followed by restacking from LixNbS2 powder, shows high electrical conductivity of 8.7 × 103 S cm-1 and work function of 5.20 eV. The two-dimensional transition metal dichalcogenide was used for the first time as a counter electr ...[more]

PMID: 29728660

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