One-polymer active pixel

A metal-oxide field-effect transistor (MOSFET) based on an electroluminescent conjugated polymer is fabricated on a glass substrate. It is found that the mobility horizontal to the substrate is two to three orders of magnitude larger than the mobility vertical to the substrate. The high horizontal mobility is attributed to the in-plane chain alignment in amorphous spin-coated films. We demonstrate an active pixel in which the light-emitting diode and the driving MOSFET share the same active polymer.

[1]  Ifor D. W. Samuel,et al.  Efficiency of radiative emission from thin films of a light-emitting conjugated polymer , 2001 .

[2]  Dago M. de Leeuw,et al.  I-Line lithography of poly-(3,4-ethylenedioxythiophene) electrodes and application in all-polymer integrated circuits , 2002 .

[3]  George G. Malliaras,et al.  Temperature- and field-dependent electron and hole mobilities in polymer light-emitting diodes , 1999 .

[4]  John A. Rogers,et al.  Monolithically integrated, flexible display of polymer-dispersed liquid crystal driven by rubber-stamped organic thin-film transistors , 2001 .

[5]  John A. Rogers,et al.  Organic smart pixels , 1998 .

[6]  John P. Ferraris,et al.  MEH-PPV: Improved synthetic procedure and molecular weight control , 2000 .

[7]  J. Ferraris,et al.  Consistent time-of-flight mobility measurements and polymer light-emitting diode current–voltage characteristics , 1999 .

[8]  S. M. Sze,et al.  Physics of semiconductor devices , 1969 .

[9]  J. Sturm,et al.  Integration of organic LEDs and amorphous Si TFTs onto flexible and lightweight metal foil substrates , 1997, IEEE Electron Device Letters.

[10]  Zhenan Bao,et al.  High-performance plastic transistors fabricated by printing techniques , 1997 .

[11]  Giovanni Bussi,et al.  Solid state effects on exciton states and optical properties of PPV. , 2002, Physical review letters.

[12]  N. Tessler,et al.  Structures of polymer field-effect transistor: Experimental and numerical analyses , 2002 .

[13]  W. R. Salaneck,et al.  Electroluminescence in conjugated polymers , 1999, Nature.

[14]  A. Monkman,et al.  Measurement of the Anisotropic Refractive Indices of Spin Cast Thin Poly(2‐methoxy‐5‐(2′‐ethyl‐hexyloxy)‐p‐phenylenevinylene) (MEH–PPV) Films , 2002 .