Phosphorescent Light-Emitting Transistors: Harvesting Triplet Excitons

Ebinazar B. Namdas; Ben B. Y. Hsu; Zehua Liu; Shih-Chun Lo; Paul L. Burn; Ifor D. W. Samuel

doi:10.1002/adma.200900919

Phosphorescent Light-Emitting Transistors: Harvesting Triplet Excitons

Ebinazar B. Namdas
, Ben B. Y. Hsu
, Zehua Liu
, Shih-Chun Lo
, Paul L. Burn
, Ifor D. W. Samuel

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

Abstract

Phosphorescent light-emitting transistors, in which light emission from singlet and triplet energy levels is harvested using solution-processed materials (see figure), are presented. While a green phosphorescent dendrimer exhibits an external quantum efficiency of 0.45% at 480 cd m(-2), a red polymer/phosphorescent small-molecule blend produces a brightness exceeding 30 cd m(-2) with a relatively high hole mobility of 2.5 x 10(-2) cm(2) V-1 s(-1).

Original language	English
Pages (from-to)	4957-4961
Number of pages	5
Journal	Advanced Materials
Volume	21
Issue number	48
DOIs	https://doi.org/10.1002/adma.200900919
Publication status	Published - 28 Dec 2009

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EPSRC Advanced Organic Optoelectronic Ma: Advanced Organic Optoelectronic Materials and Devices
Samuel, I. (PI)
EPSRC
1/01/07 → 31/12/09
Project: Standard
EPSRC AOOMD Fellowship: Advanced Organic Optoelectronic Materials and Devices
Samuel, I. (PI)
EPSRC
1/03/06 → 28/02/11
Project: Fellowship

Cite this

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title = "Phosphorescent Light-Emitting Transistors: Harvesting Triplet Excitons",

abstract = "Phosphorescent light-emitting transistors, in which light emission from singlet and triplet energy levels is harvested using solution-processed materials (see figure), are presented. While a green phosphorescent dendrimer exhibits an external quantum efficiency of 0.45\% at 480 cd m(-2), a red polymer/phosphorescent small-molecule blend produces a brightness exceeding 30 cd m(-2) with a relatively high hole mobility of 2.5 x 10(-2) cm(2) V-1 s(-1).",

author = "Namdas, \{Ebinazar B.\} and Hsu, \{Ben B. Y.\} and Zehua Liu and Shih-Chun Lo and Burn, \{Paul L.\} and Samuel, \{Ifor D. W.\}",

year = "2009",

month = dec,

day = "28",

doi = "10.1002/adma.200900919",

language = "English",

volume = "21",

pages = "4957--4961",

journal = "Advanced Materials",

issn = "0935-9648",

publisher = "Wiley-Blackwell",

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TY - JOUR

T1 - Phosphorescent Light-Emitting Transistors

T2 - Harvesting Triplet Excitons

AU - Namdas, Ebinazar B.

AU - Hsu, Ben B. Y.

AU - Liu, Zehua

AU - Lo, Shih-Chun

AU - Burn, Paul L.

AU - Samuel, Ifor D. W.

PY - 2009/12/28

Y1 - 2009/12/28

N2 - Phosphorescent light-emitting transistors, in which light emission from singlet and triplet energy levels is harvested using solution-processed materials (see figure), are presented. While a green phosphorescent dendrimer exhibits an external quantum efficiency of 0.45% at 480 cd m(-2), a red polymer/phosphorescent small-molecule blend produces a brightness exceeding 30 cd m(-2) with a relatively high hole mobility of 2.5 x 10(-2) cm(2) V-1 s(-1).

AB - Phosphorescent light-emitting transistors, in which light emission from singlet and triplet energy levels is harvested using solution-processed materials (see figure), are presented. While a green phosphorescent dendrimer exhibits an external quantum efficiency of 0.45% at 480 cd m(-2), a red polymer/phosphorescent small-molecule blend produces a brightness exceeding 30 cd m(-2) with a relatively high hole mobility of 2.5 x 10(-2) cm(2) V-1 s(-1).

U2 - 10.1002/adma.200900919

DO - 10.1002/adma.200900919

M3 - Article

SN - 0935-9648

VL - 21

SP - 4957

EP - 4961

JO - Advanced Materials

JF - Advanced Materials

IS - 48

ER -

Phosphorescent Light-Emitting Transistors: Harvesting Triplet Excitons

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EPSRC Advanced Organic Optoelectronic Ma: Advanced Organic Optoelectronic Materials and Devices

EPSRC AOOMD Fellowship: Advanced Organic Optoelectronic Materials and Devices

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