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Correction

Correction for Lee et al., Organic light-emitting diodes formed by soft contact lamination, PNAS 2004 101:429-433

PNAS March 2, 2004 101 (9) 3322; https://doi.org/10.1073/pnas.0400055101

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  • Organic light-emitting diodes formed by soft contact lamination - January 02, 2004
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PHYSICS. For the article “Organic light-emitting diodes formed by soft contact lamination,” by Tae-Woo Lee, Jana Zaumseil, Zhenan Bao, Julia W. P. Hsu, and John A. Rogers, which appeared in issue 2, January 13, 2004, of Proc. Natl. Acad. Sci. USA (101, 429-433; first published January 2, 2004; 10.1073/pnas.0304179101), the authors note that on page 430, left column, 5 lines from the bottom, “electron beam with long distance (≈30 cm)” should read “electron beam with long distance (≈40 cm).” Also, due to a printer's error, the scale bar is missing from Fig. 4a, and Fig. 2a should have been labeled “Current density (mA/mm2)” instead of “Current density (mA/MM2).” The corrected figures and their legends appear below.

Fig. 2.
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Fig. 2.

Characteristics of OLEDs formed from a stack of ITO (100 nm)/MEH-PPV (65 nm)/Au (20 nm), fabricated by ScL and by evaporation (conventional) of the Au layer. (a) Current density as a function of electric field. (b) External quantum efficiency [% photons per electron (ph/el)] as a function of current density. Squares, conventional device operated with ITO positively biased; triangles, ScL device operated with ITO positively biased; circles, conventional device operated with Au positively biased; diamonds, ScL device with Au positively biased. For both bias directions, the efficiency of the ScL device is much higher than that of the conventional device

Fig. 4.
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Fig. 4.

Patterned OLEDs formed by the combined use of ScL and soft lithography. In all cases, the Au was 20 nm thick and the electroluminescent layer was a polyfluorene derivative blended with 17 wt % of TBABF4 (100 nm). The unpatterned devices showed EL efficiencies of 0.65% ph/el. The schematic illustrations on the left show the modifications to the ScL electrodes, and the images on the right represent an example of OLEDs fabricated by using the approach. (a) Molding features of relief into the PDMS followed by blanket deposition of the electrode generates emission in the pattern of the raised features. (Scale bar, 100 μm.) (b) Microcontact printing an insulating self-assembled monolayer (octadecanethiol; C18) before lamination yields emission only in the bare Au regions. (Scale bar, 100 μm.) (c) Photolithography with a conformable phase mask followed by etching directly patterns lines (150 nm wide) of Au on the PDMS. The averaged linewidth (≈ 600 nm) of the pattern of emission (graph below) in this case is comparable to the resolution of the optical imaging system. (Scale bar, 5 μm.) The Rayleigh diffraction limit for the 0.55-numerical-aperture microscope objectives is 590 nm at a wavelength of 540 nm. The EL image was taken through the ITO (100 nm)/glass (0.4 mm), which reduces the effective numerical aperture.

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Correction for Lee et al., Organic light-emitting diodes formed by soft contact lamination, PNAS 2004 101:429-433
Proceedings of the National Academy of Sciences Mar 2004, 101 (9) 3322; DOI: 10.1073/pnas.0400055101

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Correction for Lee et al., Organic light-emitting diodes formed by soft contact lamination, PNAS 2004 101:429-433
Proceedings of the National Academy of Sciences Mar 2004, 101 (9) 3322; DOI: 10.1073/pnas.0400055101
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Proceedings of the National Academy of Sciences of the United States of America: 101 (9)
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