Replication Data for: Self-assembly of a robust hydrogen-bonded octylphosphonate network on cesium lead bromide perovskite nanocrystals for light-emitting diodes
Replication Data for: Self-assembly of a robust hydrogen-bonded octylphosphonate network on cesium lead bromide perovskite nanocrystals for light-emitting diodes
In this work we employ a post-synthetic ligand exchange treatment with octylphosphonic acid to substitute the native oleic acid ligands on cesium lead bromide nanocrystals. Using solid-state NMR we proved that the introduced octylphosphonic acid ligands bound to the nanocrystal surface in a monodentate mode, also forming inter-ligand hydrogen bonds through their free P=O and P-OH groups. The binding of this ligand improved surface passivation, increasing post-purification PLQY to 62 %. As a result, we were able to fabricate light-emitting diodes with a maximum external quantum efficiency of 7.74 %.
Nanyang Technological University
Brown, Alasdair A. M.
3107ea0b-bebd-4b75-802e-9b65e28fcacf
Hooper, Thomas J. N.
ecfdf81c-ac2e-48d7-aea1-096555d0b917
Veldhuis, Sjoerd A.
0bdf155a-62d8-42ab-a60e-0a4aec33a299
Chin, Xin Yu
dd14be7d-dac9-450c-b854-e15639e9481c
Bruno, Annalisa
0075275b-4c20-4eb7-aed7-ab4766add0c0
Vashishtha, Parth
6e5532eb-f617-4afd-933e-890670fd039e
Tey, Ju Nie
e0ab0eac-f882-4da8-afbc-c3815d1e3ebf
Jiang, Liudi
374f2414-51f0-418f-a316-e7db0d6dc4d1
Damodaran, Bahulayan
e7f9bdc9-edd5-4f6a-8f03-0a0779114abb
Pu, Suan Hui
8b46b970-56fd-4a4e-8688-28668f648f43
Mhaisalkar, Subodh G.
30472859-523b-4a5b-97e8-3036d87d3509
Mathews, Nripan
c203a11f-0b0c-4ccf-b79d-b7b026253f3b
Brown, Alasdair A. M.
3107ea0b-bebd-4b75-802e-9b65e28fcacf
Hooper, Thomas J. N.
ecfdf81c-ac2e-48d7-aea1-096555d0b917
Veldhuis, Sjoerd A.
0bdf155a-62d8-42ab-a60e-0a4aec33a299
Chin, Xin Yu
dd14be7d-dac9-450c-b854-e15639e9481c
Bruno, Annalisa
0075275b-4c20-4eb7-aed7-ab4766add0c0
Vashishtha, Parth
6e5532eb-f617-4afd-933e-890670fd039e
Tey, Ju Nie
e0ab0eac-f882-4da8-afbc-c3815d1e3ebf
Jiang, Liudi
374f2414-51f0-418f-a316-e7db0d6dc4d1
Damodaran, Bahulayan
e7f9bdc9-edd5-4f6a-8f03-0a0779114abb
Pu, Suan Hui
8b46b970-56fd-4a4e-8688-28668f648f43
Mhaisalkar, Subodh G.
30472859-523b-4a5b-97e8-3036d87d3509
Mathews, Nripan
c203a11f-0b0c-4ccf-b79d-b7b026253f3b
Chin, Xin Yu, Bruno, Annalisa, Vashishtha, Parth, Tey, Ju Nie, Damodaran, Bahulayan and Mathews, Nripan
(2020)
Replication Data for: Self-assembly of a robust hydrogen-bonded octylphosphonate network on cesium lead bromide perovskite nanocrystals for light-emitting diodes.
Nanyang Technological University
doi:10.21979/n9/gaprhl
[Dataset]
Abstract
In this work we employ a post-synthetic ligand exchange treatment with octylphosphonic acid to substitute the native oleic acid ligands on cesium lead bromide nanocrystals. Using solid-state NMR we proved that the introduced octylphosphonic acid ligands bound to the nanocrystal surface in a monodentate mode, also forming inter-ligand hydrogen bonds through their free P=O and P-OH groups. The binding of this ligand improved surface passivation, increasing post-purification PLQY to 62 %. As a result, we were able to fabricate light-emitting diodes with a maximum external quantum efficiency of 7.74 %.
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Published date: 1 January 2020
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Local EPrints ID: 446294
URI: http://eprints.soton.ac.uk/id/eprint/446294
PURE UUID: 68a3c357-cd9d-465e-a4de-17fd405a880e
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Date deposited: 03 Feb 2021 17:35
Last modified: 18 Feb 2021 17:36
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Contributors
Contributor:
Alasdair A. M. Brown
Contributor:
Thomas J. N. Hooper
Contributor:
Sjoerd A. Veldhuis
Creator:
Xin Yu Chin
Creator:
Annalisa Bruno
Creator:
Parth Vashishtha
Creator:
Ju Nie Tey
Creator:
Bahulayan Damodaran
Contributor:
Subodh G. Mhaisalkar
Creator:
Nripan Mathews
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