OLEDs : a new lighting technology

Vincenzo Maiorano

High efficiency Flexibility and large area

Low cost of manufacturing

High CRI

OLEDs main features

OLEDs main features

Typical bottom emission structure

1. Transparent anode on glass substrates

2. HIL: Hole Injection Layer

3. HTL: Hole Transport Layer

4. EL: Emitting Layer

5. ETL: Electron Transport Layer

6. EIL: Electron Injection Layer

7. Reflective cathode

Energy

gap

LUMO

HOMO

Active material energy levels

Different

colours

OLEDs for display applications

CES 2013

CES 2012

CES 2013

55 inch flat….

…55 inch curved

flexible display

Approaching fluorescent tube

efficiency….

…….potentially it could be

doubled (up to 150-200lm/W)

with better CRI and higher

versatility

WOLEDs for lighting application

Philips lighting

OLED technology roadmap

TECHNOLOGY TRANSFER: a success story

1 10 100 10005000

6000

7000

8000

9000

10000

11000

12000

1 10 100 10003,30

3,32

3,34

3,36

3,38

3,40

3,42

3,44

3,46

3,48

3,50

Vo

lta

ge

(V

)

Time (h)

Lu

min

an

ce

(C

d/m

2)

Time (h)

OLED for automotive applications

TECHNOLOGY TRANSFER: a success story

NNL LAB

Astron FIAMM safety

Blackbody – OLED Lighting

K.J.Lesker cluster tool – NNL Lab

OLEDs: deposition tool

Cavity OLEDs: high CRI and efficiency

NNL Lab

1) Organic light emitting field effect transistor based on ambipolar p-i-n layered structure – V.Maiorano et al. , A.Bramanti,

S.Carallo, R.Cingolani and G.Gigli, Appl. Phys. Lett., 96, 133305 (31/03/2010) -collaboration with ST

2) Transistor a effetto di campo a base di molecole organiche emettitore di luce – V.Maiorano, G.Gigli – Italian patent N° IT

RM20100107 (A1) (13/09/2011)

3) Organic light emitting field effect transistor – V.Maiorano, G.Gigli – International Patent WO 2011110664 (A1) (15/09/2011)

4) Organic light emitting field effect transistor – V.Maiorano, G.Gigli – European Patent N°11707864.2 (26-10-2012 )to be approved

Main features of the new concept trylayer doped

heterostructure

1) Large emission area along the whole transistor channel

2) Light emission controlled by doping concentration

3) High output current at relative low driving voltages

4) Suitable voltage gain for their integration in planar complex

device (AM display - boolean circuits)

Organic light-emitting field effect transistors (OLEFET) with doped transport layers

Molecular NAnotechnology for HeAlth and EnvironmenT

(MAAT)

1) low-cost Lab-on-Chips (LOCs), integrated with OLED sources of

illumination in a unique device (STMicroelectronics) 2) semitransparent smart panels showing colour modulation, in which energy production (Solar Cells - DSSC), lighting (OLEDs) and solar control/sun screening (photovoltacromics - PEECs) are combined (TOZZI TRE)

Project Objectives

Università del Salento - Dipartimento di Matematica e Fisica

Scientific Coordinator: prof. Giuseppe Gigli CNR –Consiglio Nazionale delle Ricerche

Scientific Coordinator: dott.Vincenzo Maiorano Istituto Italiano di Tecnologia (IIT-CBN) - Sede di Lecce

Scientific Coordinator: ing. Michele Manca Distretto High Tech Pugliese - DHITECH

Administrative Coordinator: dott.ssa Tiziana Valerio Università di Bari - Dipartimento di Chimica

Scientific Coordinator: prof. Gianluca Farinola Politecnico di Bari

Scientific Coordinator: prof. Giampaolo Suranna ST Microelectronics

Scientific Coordinator: ing. Alessandro Paolo Bramanti Tozzi Renewable Energy

Scientific Coordinator: dott. Francesco Matteucci

Project Partners

OR 1:

Dispositivi OLEDs

CNR NANO

CNR IMM)

CNR INO)

OR 2:

Celle DSSC

CNR NANO

CNR IMM

CNR IPCF

OR 3:

PECCs

CNR NANO

CNR IPCF

OR 4:

Smart panels

CNR NANO

OR 5:

OLED based Lab-on-Chip

CNR NANO

OR 6:

Costruzione dei Living

Labs

……….

CNR in MAAT