DOI: 10.1142/s1793292014400037. MODULATING CH3NH3PbI3 PEROVSKITE CRYSTALLIZATION BEHAVIOR THROUGH PRECURSOR CONCENTRATION

MODULATING CH3NH3PbI3 PEROVSKITE CRYSTALLIZATION BEHAVIOR THROUGH PRECURSOR CONCENTRATION

10.1142/s1793292014400037

Crossref journal-article

World Scientific Pub Co Pte Ltd

Nano (219)

Abstract

Perovskite-based photovoltaic devices have recently achieved impressively high efficiencies beyond 15% and gained great interest. We show here the formation of perovskite cluster overlayer structures which consist of individual perovskite grains on top of mesoporous TiO 2 films, coexisting with the randomly distributed nanocrystals within the films. Perovskite solution concentration was found to play an important role in modulating the perovskite crystallization and cluster overlayer formation process. Absorbance increase in visible wavelength range and shift of photoluminescence (PL) responses of perovskite films due to the effect of precursor concentration change were observed and investigated in detail. The crystallographic analysis of the CH 3 NH 3 PbI 3 films shows a gradual decrease of the perovskite lattice parameters and shrinkage of unit volume as precursor solution concentration increases, which is correlated to the changes of optical properties. Finally, perovskite-based solar cell device performance was enhanced at higher precursor concentration.

Bibliography

FU, K., LIM, S. S., FANG, Y., BOIX, P. P., MATHEWS, N., SUM, T. C., WONG, L. H., & MHAISALKAR, S. (2014). MODULATING CH3NH3PbI3 PEROVSKITE CRYSTALLIZATION BEHAVIOR THROUGH PRECURSOR CONCENTRATION. Nano, 09(05), 1440003.

Authors 8

KUNWU FU (first)
SWEE SIEN LIM (additional)
YANAN FANG (additional)
PABLO P. BOIX (additional)
NRIPAN MATHEWS (additional)
TZE CHIEN SUM (additional)
LYDIA H. WONG (additional)
SUBODH MHAISALKAR (additional)

References 28 Referenced 8

Dates

Type	When
Created	11 years, 4 months ago (April 4, 2014, 2:04 a.m.)
Deposited	6 years ago (Aug. 6, 2019, 3:38 p.m.)
Indexed	3 weeks, 5 days ago (Aug. 5, 2025, 8:49 a.m.)
Issued	11 years, 1 month ago (July 1, 2014)
Published	11 years, 1 month ago (July 1, 2014)
Published Online	11 years, 1 month ago (July 3, 2014)
Published Print	11 years, 1 month ago (July 1, 2014)

Funders 0

None

BibTeX

@article{FU_2014, title={MODULATING CH3NH3PbI3 PEROVSKITE CRYSTALLIZATION BEHAVIOR THROUGH PRECURSOR CONCENTRATION}, volume={09}, ISSN={1793-7094}, url={http://dx.doi.org/10.1142/s1793292014400037}, DOI={10.1142/s1793292014400037}, number={05}, journal={Nano}, publisher={World Scientific Pub Co Pte Ltd}, author={FU, KUNWU and LIM, SWEE SIEN and FANG, YANAN and BOIX, PABLO P. and MATHEWS, NRIPAN and SUM, TZE CHIEN and WONG, LYDIA H. and MHAISALKAR, SUBODH}, year={2014}, month=jul, pages={1440003} }

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