Perovskite Solar Cells Based on Nanocolumnar PlasmaDeposited ZnO Thin Films

ZnO thin films having a nanocolumnar microstructure are grown by plasma-enhanced chemical vapor deposition at 423 K on pre-treated fluorine-doped tin oxide (FTO) substrates. The films consist of c-axis-oriented wurtzite ZnO nanocolumns with well-defined microstructure and crystallinity. By sensitizing CH3NH3PbI3 on these photoanodes a power conversion of 4.8% is obtained for solid-state solar cells. Poly(triarylamine) is found to be less effective when used as the hole-transport material, compared to 2,2,7,7-tetrakis(N,N-di-p-methoxyphenylamine)-9,9-spirobifluorene (spiro-OMeTAD), while the higher annealing temperature of the perovskite leads to a better infiltration in the nanocolumnar structure and an enhancement of the cell efficiency.


Published in:
Chemphyschem, 15, 6, 1148-1153
Year:
2014
Publisher:
Weinheim, Wiley-Blackwell
ISSN:
1439-4235
Keywords:
Laboratories:




 Record created 2014-05-26, last modified 2018-03-17


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