Analysis of the emitting states of an Ir(III) complex with strong blue emission

Jane Y. Liew; Shih Chun Lo; Paul L. Burn; Elmars R. Krausz; Jeremy D. Hall; Evan G. Moore; Mark J. Riley

doi:10.1016/j.cplett.2015.10.035

Analysis of the emitting states of an Ir(III) complex with strong blue emission

Jane Y. Liew
, Shih Chun Lo
, Paul L. Burn
, Elmars R. Krausz
, Jeremy D. Hall
, Evan G. Moore^*
, Mark J. Riley

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Temperature dependent luminescence, lifetimes and magnetic circularly polarised luminescence (MCPL) are reported between 1.7 and 80 K and in magnetic fields of 0-5 T for [Ir(ptz)₃]. Data analysis reveals the temperature and field dependent behaviour is due to the sublevel structure of the emitting state. We have determined energy separations of ΔE_II,I = 10 cm^-1 and ΔE_III,I = 45 cm^-1 between three triplet sublevels, with intrinsic luminescence lifetimes of τ_I = 160 μs, τ_II = 10 μs and τ_III = 800 ns. We compare these with values for the green emitter, [Ir(ppy)₃] and discuss implications for the excited state geometries.

Original language	English
Pages (from-to)	62-67
Number of pages	6
Journal	Chemical Physics Letters
Volume	641
DOIs	https://doi.org/10.1016/j.cplett.2015.10.035
Publication status	Published - 16 Nov 2015

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title = "Analysis of the emitting states of an Ir(III) complex with strong blue emission",

abstract = "Temperature dependent luminescence, lifetimes and magnetic circularly polarised luminescence (MCPL) are reported between 1.7 and 80 K and in magnetic fields of 0-5 T for [Ir(ptz)3]. Data analysis reveals the temperature and field dependent behaviour is due to the sublevel structure of the emitting state. We have determined energy separations of ΔEII,I = 10 cm-1 and ΔEIII,I = 45 cm-1 between three triplet sublevels, with intrinsic luminescence lifetimes of τI = 160 μs, τII = 10 μs and τIII = 800 ns. We compare these with values for the green emitter, [Ir(ppy)3] and discuss implications for the excited state geometries.",

author = "Liew, \{Jane Y.\} and Lo, \{Shih Chun\} and Burn, \{Paul L.\} and Krausz, \{Elmars R.\} and Hall, \{Jeremy D.\} and Moore, \{Evan G.\} and Riley, \{Mark J.\}",

year = "2015",

month = nov,

day = "16",

doi = "10.1016/j.cplett.2015.10.035",

language = "English",

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pages = "62--67",

journal = "Chemical Physics Letters",

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TY - JOUR

T1 - Analysis of the emitting states of an Ir(III) complex with strong blue emission

AU - Liew, Jane Y.

AU - Lo, Shih Chun

AU - Burn, Paul L.

AU - Krausz, Elmars R.

AU - Hall, Jeremy D.

AU - Moore, Evan G.

AU - Riley, Mark J.

PY - 2015/11/16

Y1 - 2015/11/16

N2 - Temperature dependent luminescence, lifetimes and magnetic circularly polarised luminescence (MCPL) are reported between 1.7 and 80 K and in magnetic fields of 0-5 T for [Ir(ptz)3]. Data analysis reveals the temperature and field dependent behaviour is due to the sublevel structure of the emitting state. We have determined energy separations of ΔEII,I = 10 cm-1 and ΔEIII,I = 45 cm-1 between three triplet sublevels, with intrinsic luminescence lifetimes of τI = 160 μs, τII = 10 μs and τIII = 800 ns. We compare these with values for the green emitter, [Ir(ppy)3] and discuss implications for the excited state geometries.

AB - Temperature dependent luminescence, lifetimes and magnetic circularly polarised luminescence (MCPL) are reported between 1.7 and 80 K and in magnetic fields of 0-5 T for [Ir(ptz)3]. Data analysis reveals the temperature and field dependent behaviour is due to the sublevel structure of the emitting state. We have determined energy separations of ΔEII,I = 10 cm-1 and ΔEIII,I = 45 cm-1 between three triplet sublevels, with intrinsic luminescence lifetimes of τI = 160 μs, τII = 10 μs and τIII = 800 ns. We compare these with values for the green emitter, [Ir(ppy)3] and discuss implications for the excited state geometries.

UR - https://www.scopus.com/pages/publications/84946811894

U2 - 10.1016/j.cplett.2015.10.035

DO - 10.1016/j.cplett.2015.10.035

M3 - Article

SN - 0009-2614

VL - 641

SP - 62

EP - 67

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

Analysis of the emitting states of an Ir(III) complex with strong blue emission

Abstract

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