FIrpic (F2IrPic)

Order Code: M711
MSDS sheet


(excluding Taxes)


General Information

CAS number 376367-93-0
Chemical formula C28H16F4IrN3O2
Molecular weight 694.66 g/mol
Absorption λmax 256 nm (DCM)
Fluorescence λem 468 nm, 535 nm (DCM)
HOMO/LUMO HOMO = 5.8 eV, LUMO = 3.1 eV [1]
  • F2Irpic, Ir(diFppy)2(pic)
  • Bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium(III)
Classification / Family Iridium complex, Phosphorescent blue emitter, Organic light-emitting diodes, Organic electronics


Product Details


>99.7% (Sublimed)

>99.7% (Unsublimed)

Melting point 330-335 °C (lit.)
Colour Yellow powder

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials for OLED devices page.

Chemical Structure

chemical structure of FIrpic
Chemical Structure of Bis[2-(4,6-difluorophenyl)pyridinato- C2,N](picolinato)iridium(III) (FIrpic); CAS No. 376367-93-0; Chemical Formula C28H16F4IrN3O.



Bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium, abbreviated as FIrPic, F2IrPic or Ir(difppy)2(pic), is one of the most investigated bis-cyclometallated iridium complexes in particular in the context of organic light emitting diodes (OLEDs). This is because of its attractive sky-blue emission, high emission efficiency, and suitable energy levels as a phosphorescent dopant material.


Device structure ITO/MoO3 /FIrpic:CBP/FIrpic:TPBi/LiF/Al [1]
Colour Blue  blue
Max. Current Efficiency 49 cd/A
Max. Power Efficiency 48 lm W−1 
Device structure ITO/NPB(40 nm)/CDBP:10% FIrpic (10 nm)/TPBI (4 nm)/CBP:5% Ir(ppy)3:3% Ir(piq)2(acac) (20 nm)/TPBI (50 nm)/LiF(0.8 nm)/Al [2]
Colour White  white
Max. Luminance 42,700 cd/m2 
Max. Power Efficiency 8.48 lm W1
Device structure ITO/NPB (50nm)/mCP (10 nm)/CbzTAZ:15 wt% FIripic (35 nm)/TAZ (30 nm)/LiF (1 nm)/Al (120 nm) [3]
Colour Blue   blue
Max. Luminance 40,000 cd/m2
Max. Current Efficiency 25.8 cd/A
Max. Power Efficiency 22.5 lm W−1 
Device structure ITO/TAPC (50 nm)/TcTa:FIrpic (7%,10 nm)/26DCzPPy:FIrpic (20%, 10 nm)/Tm3PyPB (20 nm)/Tm3PyPB:Cs (30 nm)/LiF (1 nm)/Al (120 nm) [4]
Colour Blue   blue
Max. EQE 20.3%
Max. Power Efficiency 36.7 lm W−1 
Device structure ITO /NPB (40 nm)/TCTA (5 nm)/TCTA:1 wt% fbi2Ir(acac):4 wt% FIrpic (17.5 nm)/TAZ (40 nm)/LiF/Al [5]
Colour White  white
Max. EQE 13.3%
Max. Current Efficiency 37.5 cd/A
Device structure ITO/MoO3 (3 nm)/TCTA (50 nm)/TCTA:TmPyPb:FIrpic (20 nm)/TmPyPb (30 nm)/LiF (1 nm)/Al (120 nm) [6]
Colour Blue  blue
Max. EQE 20.4%
Max. Power Efficiency 55.4 lm W−1 
Device structure ITO (150 nm)/NPB (70 nm)/mCP:FIrpic-8.0%:Ir(ppy)3-0.5%:Ir(piq)3-0.5% (30 nm)/TPBi (30 nm)/Liq (2 nm)/Al (120 nm) [7]
Colour White  white
Max. Luminance 37,810 cd/m2 
Max. Current Efficiency 48.1 cd/A
Device structure ITO/DNTPD* (60 nm)/NPB (20 nm)/mCP (10 nm)/mCP:FIrpic (25 nm)/CBP:Ir(piq)2acac (5 nm)/BCP (5 nm)/Alq3 (20 nm)/LiF (1 nm)/Al (200 nm) [8]
Colour White  white
EQE@500 cd/m2 8.2 %
Current Efficiency @500  cd/m2 12.7 lm W1
Device structure

ITO/MoOx (5 nm)/NPB (40 nm)/4% Y-Pt*:TCTA (20 nm)/8% FIrpic:mCP(10 nm)/8% FIrpic:UGH2 (10 nm)/BAlq (40 nm)/LiF (0.5 nm)/Al (100 nm) [9]

Colour White   white
Max. EQE  16.0%
Max. Current Efficiency 45.6 cd/A
Max. Power Efficiency 35.8 lm W1
Device structure ITO/MoO3 (8 nm)/(NPB)(80 nm)/TAPC(5 nm)/TCTA:4 wt% Ir(MDQ)2(acac) (4 nm)/TCTA:2 wt% Ir(ppy)3 (4 nm)/43 wt% TCTA: 43 wt% 26DCzPPy: 14 wt% FIrpic (5 nm)/TmPyPb (40 nm)/LiF/Al [10]
Colour White   white
Max. EQE 19.4%
Max. Current Efficiency 43.6 cd/A
Max. Power Efficiency 45.8 lm W1

Device structure             ITO/PEDOT:PSS/TCTA:TPOB:10 wt % FIrpic/TmPyPB/Cs2CO3/Al [11]
Colour Blue   blue
Max. EQE                       13.8%
Max. Current Efficiency 28.2 cd/A
Max. Power Efficiency 22 lm W1

Device structure ITO/PEDOT:PSS(40 nm)/TCTA:TAPC:FIrpic:Ir(ppy)3:Ir(MDQ)2(acac) (40nm)/TmPyPB (50 nm)/LiF (1 nm)/Al [12]
Colour White   white
Max. Current Efficiency 37.1 cd/A
Max. Power Efficiency 32.1 lm W1

Device structure

ITO/MoO3 (7nm)/NPB (85 nm)/ (PPQ)2Ir(acac):Ir(ppy)3:FIrpic:mCP/TAZ/LiF/Al [13]
Colour White   white
Max. EQE 20.1%
Max. Power Efficiency 41.3 lm W1



HPLC trace of FIrPic, F2IrPic
HPLC trace of Bis[2-(4,6-difluorophenyl)pyridinato-C2,N](picolinato)iridium(III) (FIrPic, F2IrPic).


Literature and Reviews

  1.  Band Alignment at Anode/Organic Interfaces for Highly Efficient Simplified Blue-Emitting Organic Light-Emitting Diodes, Z. Liu et al.,., J. Phys. Chem. C, 114, 16746–16749 (2010). 
  2. White organic light-emitting devices employing phosphorescent iridium complex as RGB dopants, R. Song et al., Semicond. Sci. Technol. 22, 728–731 (2007); doi:10.1088/0268-1242/22/7/009.
  3. High Power Efficiency Solution-Processed Blue Phosphorescent Organic Light-Emitting Diodes Using Exciplex-Type Host with a Turn on Voltage Approaching the Theoretical Limit, X. Ban et al., ACS Appl. Mater. Interfaces, 7, 25129−25138 (2015); DOI: 10.1021/acsami.5b06424.
  4. Dependence of Light-Emitting Characteristics of Blue Phosphorescent Organic Light-Emitting Diodes on Electron Injection and Transport Materials, Jeong-Ik Lee et al. ETRI J., 34 (5), 690-695 (2012).
  5. Highly efficient single-emitting-layer white organic light-emitting diodes with reduced efficiency roll-off, Q Wang, et al., Appl. Phys. Lett.,94, 103503 (2009); doi: 10.1063/1.3097028.
  6. High efficiency blue phosphorescent organic light-emitting diode based on blend of hole- and electron-transporting materials as a co-host, Y. Chen et al., Appl. Phys. Lett. 100, 213301 (2012); doi: 10.1063/1.4720512.
  7. Study of Sequential Dexter Energy Transfer in High Efficient Phosphorescent White Organic Light-Emitting Diodes with Single Emissive Layer, J-K. Kim et al., Sci. Reports, 4, 7009 (2014); DOI: 10.1038/srep07009.
  8. Improved color stability in white phosphorescent organic light-emitting diodes using charge confining structure without interlayer, S-H. Kim et al., Appl. Phys. Lett. 91, 123509 (2007);
  9. High efficiency fluorescent white organic light-emitting diodes with red, green and blue separately monochromatic emission layers, Z. Zhang et al., Org. Electronics, 10, 491-495 (2009); doi:10.1016/j.orgel.2009.02.006.
  10. High-Efficiency Phosphorescent White Organic Light-Emitting Diodes with Stable Emission Spectrum Based on RGB Separately Monochromatic Emission Layers, Q. Zhang et al., Chin. Phys. Lett., 31 (4) 046801 (2014).
  11. Enhanced Electron Affinity and Exciton Confinement in ExciplexType Host: Power Efficient Solution-Processed Blue Phosphorescent OLEDs with Low Turn-on Voltage, X. Ban et al., ACS Appl. Mater. Interfaces, 8, 2010-2016 (2016); DOI: 10.1021/acsami.5b10335.
  12. Solution-Processed Small Molecules As Mixed Host for Highly Efficient Blue and White Phosphorescent Organic Light-Emitting Diodes, Q Fu. et al., ACS Appl. Mater. Interfaces, 4, 6579−6586 (2012);
  13. Manipulating Charges and Excitons within aSingle-Host System to Accomplish Efficiency/CRI/Color-Stability Trade-off for High-PerformanceOWLEDs, Q. Wang et al., Adv. Mater., 21, 2397–2401 (2009).