Enhanced yield-mobility products in hybrid halide Ruddlesden–Popper compounds with aromatic ammonium spacers
Abstract
We show hybrid halide Ruddlesden–Popper compounds are related to three-dimensional hybrid AMX3 perovskites (e.g. where A is a monovalent cation, M is a divalent metal cation, and X is a halogen) with the general formula L2An–1MnX3n+1 where L is a monovalent spacer cation. The crystal structure comprises perovskite-like layers separated by organic cation spacers. Here two Ruddlesden–Popper compounds with a conjugated cation, 2-(4-biphenyl)ethylammonium (BPEA) prepared by solvothermal and solvent evaporation techniques are reported. The structures of the two compounds: (BPEA)2PbI4 and (BPEA)2(CH3NH3)Pb2I7, were solved by X-ray crystallography. The aromatic rings of the BPEA groups are well-separated in the organic layers leading to optical properties comparable to n = 1 and 2 hybrid halide Ruddlesden–Popper compounds with simpler alkyl ammonium cations. The ambient stability of both compounds over time was also confirmed by powder X-ray diffraction. Finally, the transient photoconductance, measured by time-resolved microwave conductivity, show that the compounds have maximum yield-mobility products respectively of 0.07 cm2 V–1 s–1 and 1.11 cm2 V–1 s–1 for (BPEA)2PbI4 and (BPEA)2(CH3NH3)Pb2I7, both slightly enhanced over what has been measured for compounds with simpler (n-butylammonium) spacer cations.
- Authors:
-
[1];
[1];
[1]
- Univ. of California, Santa Barbara, CA (United States). Dept. of Materials
- Univ. of California, Santa Barbara, CA (United States). Dept. of Chemistry and Biochemistry
- Publication Date:
- Research Org.:
- Univ. of California, Santa Barbara, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1594803
- Alternate Identifier(s):
- OSTI ID: 1560335
- Grant/Contract Number:
- SC0012541; DMR-1720256
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Dalton Transactions
- Additional Journal Information:
- Journal Volume: 48; Journal Issue: 37; Journal ID: ISSN 1477-9226
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Venkatesan, Naveen R., Mahdi, Ali, Barraza, Brian, Wu, Guang, Chabinyc, Michael L., and Seshadri, Ram. Enhanced yield-mobility products in hybrid halide Ruddlesden–Popper compounds with aromatic ammonium spacers. United States: N. p., 2019.
Web. doi:10.1039/C9DT03074C.
Venkatesan, Naveen R., Mahdi, Ali, Barraza, Brian, Wu, Guang, Chabinyc, Michael L., & Seshadri, Ram. Enhanced yield-mobility products in hybrid halide Ruddlesden–Popper compounds with aromatic ammonium spacers. United States. https://doi.org/10.1039/C9DT03074C
Venkatesan, Naveen R., Mahdi, Ali, Barraza, Brian, Wu, Guang, Chabinyc, Michael L., and Seshadri, Ram. Thu .
"Enhanced yield-mobility products in hybrid halide Ruddlesden–Popper compounds with aromatic ammonium spacers". United States. https://doi.org/10.1039/C9DT03074C. https://www.osti.gov/servlets/purl/1594803.
@article{osti_1594803,
title = {Enhanced yield-mobility products in hybrid halide Ruddlesden–Popper compounds with aromatic ammonium spacers},
author = {Venkatesan, Naveen R. and Mahdi, Ali and Barraza, Brian and Wu, Guang and Chabinyc, Michael L. and Seshadri, Ram},
abstractNote = {We show hybrid halide Ruddlesden–Popper compounds are related to three-dimensional hybrid AMX3 perovskites (e.g. where A is a monovalent cation, M is a divalent metal cation, and X is a halogen) with the general formula L2An–1MnX3n+1 where L is a monovalent spacer cation. The crystal structure comprises perovskite-like layers separated by organic cation spacers. Here two Ruddlesden–Popper compounds with a conjugated cation, 2-(4-biphenyl)ethylammonium (BPEA) prepared by solvothermal and solvent evaporation techniques are reported. The structures of the two compounds: (BPEA)2PbI4 and (BPEA)2(CH3NH3)Pb2I7, were solved by X-ray crystallography. The aromatic rings of the BPEA groups are well-separated in the organic layers leading to optical properties comparable to n = 1 and 2 hybrid halide Ruddlesden–Popper compounds with simpler alkyl ammonium cations. The ambient stability of both compounds over time was also confirmed by powder X-ray diffraction. Finally, the transient photoconductance, measured by time-resolved microwave conductivity, show that the compounds have maximum yield-mobility products respectively of 0.07 cm2 V–1 s–1 and 1.11 cm2 V–1 s–1 for (BPEA)2PbI4 and (BPEA)2(CH3NH3)Pb2I7, both slightly enhanced over what has been measured for compounds with simpler (n-butylammonium) spacer cations.},
doi = {10.1039/C9DT03074C},
journal = {Dalton Transactions},
number = 37,
volume = 48,
place = {United States},
year = {Thu Sep 05 00:00:00 EDT 2019},
month = {Thu Sep 05 00:00:00 EDT 2019}
}
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Works referencing / citing this record:
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