Polymer/Perovskite Amplifying Waveguides for Active Hybrid Silicon Photonics

Suárez, Isaac; Juárez-Pérez, Emilio J.; Bisquert, Juan; Mora‐Seró, Iván; Martínez‐Pastor, Juan P.

doi:10.1002/adma.201503245

Cited by 84 publications

(89 citation statements)

References 40 publications

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“…We demonstrated the implementation of a compact optical amplifier by incorporating a CH 3 NH 3 PbI 3 film in a polymer waveguide, as it is schematically illustrated in Figure 15c [98]. The waveguide consisted of a PMMA/ HPVK bilayer structure deposited on a SiO 2 /Si substrate.…”

Section: -P14mentioning

confidence: 99%

“…Therefore, HPVKs layers have been successfully applied in a wide range of photonic devices, such as photodetectors [91,92] or light emitting diodes [90,93]. In addition, since HPVKs present a fast carrier formation and long recombination time, they are promising materials to reduce the stimulated emission threshold in active devices [94][95][96][97][98][99][100][101][102][103][104][105][106][107][108][109], as it has been nicely reviewed in [90].…”

Section: -P14mentioning

confidence: 99%

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Active photonic devices based on colloidal semiconductor nanocrystals and organometallic halide perovskites

Suárez¹

2016

Eur. Phys. J. Appl. Phys.

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Abstract. Semiconductor nanocrystals have arisen as outstanding materials to develop a new generation of optoelectronic devices. Their fabrication under simple and low cost colloidal chemistry methods results in cheap nanostructures able to provide a wide range of optical functionalities. Their attractive optical properties include a high absorption cross section below the band gap, a high quantum yield emission at room temperature, or the capability of tuning the band-gap with the size or the base material. In addition, their solution process nature enables an easy integration on several substrates and photonic structures. As a consequence, these nanoparticles have been extensively proposed to develop several photonic applications, such as detection of light, optical gain, generation of light or sensing. This manuscript reviews the great effort undertaken by the scientific community to construct active photonic devices based on these nanoparticles. The conditions to demonstrate stimulated emission are carefully studied by comparing the dependence of the optical properties of the nanocrystals with their size, shape and composition. In addition, this paper describes the design of different photonic architectures (waveguides and cavities) to enhance the generation of photoluminescence, and hence to reduce the threshold of optical gain. Finally, semiconductor nanocrystals are compared to organometallic halide perovskites, as this novel material has emerged as an alternative to colloidal nanoparticles.

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Section: -P14mentioning

confidence: 99%

Section: -P14mentioning

confidence: 99%

Active photonic devices based on colloidal semiconductor nanocrystals and organometallic halide perovskites

Suárez¹

2016

Eur. Phys. J. Appl. Phys.

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“…3,4 Additionally, the application of PS derivatives for the development of light emitting devices, 5 as LEDs, [6][7][8] light amplifiers 9 or lasers, [10][11][12] has been already demonstrated, which is a consequence of the outstanding properties of these materials. It is worth pointing out that PS can be prepared from solution methods at low processing temperatures and, consequently, using low cost fabrication techniques.…”

Section: Toc Figurementioning

confidence: 99%

Single step deposition of an interacting layer of a perovskite matrix with embedded quantum dots

et al. 2016

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ABSTRACT.Hybrid lead halide perovskite derivatives (PS) have emerged as very promising materials for the development of optoelectronic devices in the last few years. At the same time, inorganic nanocrystals with quantum confinement (QDs) possess unique properties that make them suitable materials for the development of photovoltaics, imaging and lighting applications, among others. In this work, we report on a new methodology for the deposition of high quality, large grain size and pinhole free PS films (CH 3 NH 3 PbI 3 ) with embedded PbS and PbS/CdS core/shell Quantum Dots (QDs). The strong interaction between both semiconductors is revealed by the formation of an exciplex state, which is monitored by photoluminescence and electroluminescence experiments. The radiative exciplex relaxation is centered in the near infrared region (NIR), ≈1200 nm, which correspond to lower energies than the corresponding band gap of both perovskite (PS) and QDs themselves. Our approach allows fabricating multiwavelength light emitting diodes (LEDs) based on a PS matrix with embedded QDs, which show considerably low turn-on potentials. The presence of the

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“…The sensitive shifting of SE wavelength of CdSe/CdS QDs with temperature may find applications like thermal sensors. However, in terms of optoelectronic devices, such as the optical amplifiers and lasers, the temperature independent SE position of CsPbBr 3 QDs will assist the maintenance of chromaticity without having to adopt the complicated thermal management …”

mentioning

confidence: 99%

Solution‐Grown CsPbBr₃/Cs₄PbBr₆ Perovskite Nanocomposites: Toward Temperature‐Insensitive Optical Gain

Wang

et al. 2017

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With regards to developing miniaturized coherent light sources, the temperature-insensitivity in gain spectrum and threshold is highly desirable. Quantum dots (QDs) are predicted to possess a temperature-insensitive threshold by virtue of the separated electronic states; however, it is never observed in colloidal QDs due to the poor thermal stability. Besides, for the classical II-VI QDs, the gain profile generally redshifts with increasing temperature, plaguing the device chromaticity. Herein, this paper addresses the above two issues simultaneously by embedding ligands-free CsPbBr nanocrystals in a wider band gap Cs PbBr matrix by solution-phase synthesis. The unique electronic structures of CsPbBr nanocrystals enable temperature-insensitive gain spectrum while the lack of ligands and protection from Cs PbBr matrix ensure the thermal stability and high temperature operation. Specifically, a color drift-free stimulated emission irrespective of temperature change (20-150 °C) upon two-photon pumping is presented and the characteristic temperature is determined to be as high as ≈260 K. The superior gain properties of the CsPbBr /Cs PbBr perovskite nanocomposites are directly validated by a vertical cavity surface emitting laser operating at temperature as high as 100 °C. The results shed light on manipulating optical gain from the advantageous CsPbBr nanocrystals and represent a significant step toward the temperature-insensitive frequency-upconverted lasers.

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Polymer/Perovskite Amplifying Waveguides for Active Hybrid Silicon Photonics

Cited by 84 publications

References 40 publications

Active photonic devices based on colloidal semiconductor nanocrystals and organometallic halide perovskites

Active photonic devices based on colloidal semiconductor nanocrystals and organometallic halide perovskites

Single step deposition of an interacting layer of a perovskite matrix with embedded quantum dots

Solution‐Grown CsPbBr₃/Cs₄PbBr₆ Perovskite Nanocomposites: Toward Temperature‐Insensitive Optical Gain

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Polymer/Perovskite Amplifying Waveguides for Active Hybrid Silicon Photonics

Cited by 84 publications

References 40 publications

Active photonic devices based on colloidal semiconductor nanocrystals and organometallic halide perovskites

Active photonic devices based on colloidal semiconductor nanocrystals and organometallic halide perovskites

Single step deposition of an interacting layer of a perovskite matrix with embedded quantum dots

Solution‐Grown CsPbBr3/Cs4PbBr6 Perovskite Nanocomposites: Toward Temperature‐Insensitive Optical Gain

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Solution‐Grown CsPbBr₃/Cs₄PbBr₆ Perovskite Nanocomposites: Toward Temperature‐Insensitive Optical Gain