TY - JOUR
T1 - Strategies for light extraction from surface plasmons in organic light-emitting diodes
AU - Frischeisen, Jörg
AU - Scholz, Bert J.
AU - Arndt, Benedikt J.
AU - Schmidt, Tobias D.
AU - Gehlhaar, Robert
AU - Adachi, Chihaya
AU - Brüttinga, Wolfgang
N1 - Funding Information:
The authors acknowledge financial support by the Elite Network of Bavaria through the international graduate school Materials Science of Complex Interfaces; by the Deutsche Forschungs-gemeinschaft; by the Japan Society for the Promotion of Science; by a Grant-in-Aid for the Global COE Program “Science for Future Molecular Systems” from the Ministry of Education, Culture, Sports, Science, and Technology of Japan; by the Funding Program for World-Leading Innovative Research and Development on Science and Technology; and by the German Federal Ministry of Education and Research under Contract No. FKZ 13N10474 (TOPAS 2012).
PY - 2011
Y1 - 2011
N2 - Organic light-emitting diodes (OLEDs) usually exhibit a low light-outcoupling efficiency of only 20%. Typically, more than 30% of the available power is lost to surface plasmons (SPs). Consequently, the overall efficiency could be strongly enhanced by recovering SP losses. Therefore, three suitable techniques for extracting SPs-index coupling, prism coupling, and grating coupling-are discussed from a theoretical point of view and investigated experimentally in simplifiedOLED-like structures. The basic physical processes are clarified by systematic variations of the involved layer thicknesses and by excited state lifetime measurements. In addition, the analysis of the results is supported by optical simulations based on a dipole model. Finally, the advantages and disadvantages of each method, their potential efficiency for recovering SP losses, as well as the applicability in OLEDs are compared.
AB - Organic light-emitting diodes (OLEDs) usually exhibit a low light-outcoupling efficiency of only 20%. Typically, more than 30% of the available power is lost to surface plasmons (SPs). Consequently, the overall efficiency could be strongly enhanced by recovering SP losses. Therefore, three suitable techniques for extracting SPs-index coupling, prism coupling, and grating coupling-are discussed from a theoretical point of view and investigated experimentally in simplifiedOLED-like structures. The basic physical processes are clarified by systematic variations of the involved layer thicknesses and by excited state lifetime measurements. In addition, the analysis of the results is supported by optical simulations based on a dipole model. Finally, the advantages and disadvantages of each method, their potential efficiency for recovering SP losses, as well as the applicability in OLEDs are compared.
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U2 - 10.1117/1.3523314
DO - 10.1117/1.3523314
M3 - Article
AN - SCOPUS:84858971686
SN - 1947-7988
VL - 1
JO - Journal of Photonics for Energy
JF - Journal of Photonics for Energy
IS - 1
M1 - 011004
ER -
