Organic light-emitting diodes having carbon nanotube anodes.
نویسندگان
چکیده
Single-walled carbon nanotube (SWNT) films on flexible PET (polyethyleneterephthalate) substrates are used as transparent, flexible anodes for organic light-emitting diodes (OLEDs). For polymer-based OLEDs having the structure: SWNT/PEDOT-PSS:MeOH/TFB (poly(9,9-dioctylfluorene-co-N-(4-butylphenyl)diphenylamine)) + TPD-Si(2) (4,4'-bis[(p-trichlorosilylpropylphenyl)phenylamino]biphenyl) /BT (poly(9,9-dioctylfluorene-co-benzothiadiazole))/CsF/Al, a maximum light output of 3500 cd/m(2) and a current efficiency of 1.6 cd/A have been achieved. The device operational lifetime is comparable to that of devices with Sn-doped In(2)O(3) (ITO)/PET anodes. The advantages of this novel type of anode over conventional ITO are discussed.
منابع مشابه
Flexible organic light-emitting diodes with transparent carbon nanotube electrodes: problems and solutions.
We study in detail here the application of transparent, conductive carbon single-wall nanotube (SWNT) networks as electrodes in flexible organic light-emitting diodes (FOLEDs). Overall comparisons of these networks to the commonly used electrodes poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and indium tin oxide (ITO) are made, and SWNT networks are shown to have excellen...
متن کاملUniversal high work function flexible anode for simplified ITO-free organic and perovskite light-emitting diodes with ultra-high efficiency
Flexible transparent electrode materials such as conducting polymers, silver nanowires, carbon nanotubes and graphenes are being investigated as possible replacements for conventional brittle inorganic electrodes. However, they have critical drawbacks of low work function (WF), resulting in a high hole injection barrier to an overlying semiconducting layer in simplified organic or organic–inorg...
متن کاملOrganic light-emitting diodes on solution-processed graphene transparent electrodes.
Theoretical estimates indicate that graphene thin films can be used as transparent electrodes for thin-film devices such as solar cells and organic light-emitting diodes, with an unmatched combination of sheet resistance and transparency. We demonstrate organic light-emitting diodes with solution-processed graphene thin film transparent conductive anodes. The graphene electrodes were deposited ...
متن کامل47.2: Hole Injection and Power Efficiency of Organic Light Emitting Diodes with Ultra-thin Inorganic Buffer Layer on Indium Tin Oxide
ITO capped with a variety of ultra-thin metal layers such as platinum, manganese, nickel, gold, lead, magnesium, and nonmetal layer such as, carbon, gallium, silicon, has been used as hole-injecting anode in organic light-emitting diodes consisting of CuPc/TPD/Alq3. Enhancement in hole injection but not current nor power efficiencies have been obtained in devices with metalcapped ITO, regardles...
متن کاملPolymeric anodes for improved polymer light-emitting diode performance
We have studied polyaniline and polyethylenedioxythiophene transparent electrodes for use as hole-injecting anodes in polymer light emitting diodes. The anodes were doped with a variety of polymer and monomer-based acids and cast from either water or organic solvents to determine the effect of the dopant and solvent on the hole-injection properties. We find that the anodes with polymeric dopant...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Nano letters
دوره 6 11 شماره
صفحات -
تاریخ انتشار 2006