Enhancing Light Extraction in Top‐Emitting Organic Light‐Emitting Devices Using Molded Transparent Polymer Microlens Arrays

Wrzesniewski, Edward; Eom, Sang-Hyun; Cao, Weiran; Hammond, William T.; Lee, Sang-Jun; Douglas, Elliot P.; Xue, Jiangeng

doi:10.1002/smll.201102662

Cited by 100 publications

(69 citation statements)

References 35 publications

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“…In order to achieve high light out coupling effects various approaches have been suggested. To extract the waveguided light in top emission OLED polymeric microlens were molded on the top emitting surface [20]. A corrugated sapphire substrate has been applied to harvest the lost associated to the surface plasmon polariton [21].…”

Section: Introductionmentioning

confidence: 99%

Organic wrinkles for energy efficient organic light emitting diodes

Moon

Kim

Park

et al. 2015

Organic Electronics

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Section: Introductionmentioning

confidence: 99%

Organic wrinkles for energy efficient organic light emitting diodes

Moon

Kim

Park

et al. 2015

Organic Electronics

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“…Optical microlens arrays (MLAs) have been playing important roles in many fields, such as photolithography [1], optical communication [2], organic light emitting diodes (OLEDs) [3], thin film organic photovoltaic cells [4,5], and biomimetic artificial compound eye cameras [6,7]. Some recent advancement in photonics and optoelectronics [8][9][10][11][12][13][14] requires tunability of the optics of MLAs, and therefore, a lot of research has been invested to realize tunable MLAs.…”

Section: Introductionmentioning

confidence: 99%

Strain tunable optics of elastomeric microlens array

Xiao

2015

Extreme Mechanics Letters

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a b s t r a c tMicrolens arrays (MLAs) have attracted great attention with their important applications in many fields, such as optical communications, organic light emitting diodes (OLEDs), thin film photovoltaic cells, and novel bio-inspired devices. The dynamically tunable MLAs whose optical properties can be changed in a controllable manner are especially desirable in some recent developments. In this study, a very simple tuning method via mechanical stretching is proposed to tune the optics of elastomeric MLAs. Theoretical mechanics and optics studies are combined to demonstrate the tunability of elastomeric MLAs under both uniaxial and equibiaxial stretching. The results show that extremely large tuning range of the focal length can be achieved using this method. This theoretical study can provide important implications to not only the design of tunable MLAs, but also developments that require controllable optical elements.

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“…However, the external quantum efficiency of OLEDs is still low, which is an obstacle to their commercial applications, due to the poor light extraction efficiency of approximately 30% [8][9][10][11][12][13]. Various techniques have been introduced to enhance the light extraction efficiency in OLEDs [14][15][16][17][18][19][20]. Recently, OLEDs utilizing the localized surface plasmonic resonance (LSPR) between excitons and localized surface plasmons (LSPs), which are the collective oscillations of free electrons on the surfaces of metal nanoparticles (NPs), have been extensively investigated to find ways to enhance their radiative emission [21,22].…”

Section: Introductionmentioning

confidence: 99%