Recent Advances in Homogeneous Integration of Emitting Structures on a Silicon Platform

The development of planar integrated systems using silicon as the main material for the near-infrared spectral region is an important area of research due to its favourable properties, such as high compatibility with existing CMOS semiconductor technology and economic efficiency. However, the indire...

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Main Authors: Michael Kovalev, Ivan Podlesnykh, George Krasin, Nikita Dolzhenko, Sergey Kudryashov
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Photonics
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Online Access:https://www.mdpi.com/2304-6732/12/2/141
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author Michael Kovalev
Ivan Podlesnykh
George Krasin
Nikita Dolzhenko
Sergey Kudryashov
author_facet Michael Kovalev
Ivan Podlesnykh
George Krasin
Nikita Dolzhenko
Sergey Kudryashov
author_sort Michael Kovalev
collection DOAJ
description The development of planar integrated systems using silicon as the main material for the near-infrared spectral region is an important area of research due to its favourable properties, such as high compatibility with existing CMOS semiconductor technology and economic efficiency. However, the indirect bandgap of silicon (E<sub>g</sub> = 1.12 eV) poses difficulties for efficient inter-band emission, requiring innovative approaches to the integration of light-emitting devices on silicon platforms. One of the main strategies to overcome the limitations of silicon for light emission consists of heterogeneous integration methods, including the use of quantum cascade structures and narrow-gap semiconductors, as well as non-linear light generation. However, these methods are often associated with serious drawbacks, such as fabrication complexity and integration problems, which can hinder the achievement of scalability and reliability. This paper presents a comprehensive review of existing approaches for homogeneous integration of light sources on a silicon platform. Future research should focus on optimising these integration methods to maximise the potential of silicon in the near-infrared spectrum.
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spelling doaj-art-7ee6060f6dbc4a3ca23514e013f5a18f2025-08-20T02:04:02ZengMDPI AGPhotonics2304-67322025-02-0112214110.3390/photonics12020141Recent Advances in Homogeneous Integration of Emitting Structures on a Silicon PlatformMichael Kovalev0Ivan Podlesnykh1George Krasin2Nikita Dolzhenko3Sergey Kudryashov4Bauman Moscow State Technical University, 105005 Moscow, RussiaBauman Moscow State Technical University, 105005 Moscow, RussiaP.N. Lebedev Physical Institute of the Russian Academy of Sciences, 119991 Moscow, RussiaBauman Moscow State Technical University, 105005 Moscow, RussiaBauman Moscow State Technical University, 105005 Moscow, RussiaThe development of planar integrated systems using silicon as the main material for the near-infrared spectral region is an important area of research due to its favourable properties, such as high compatibility with existing CMOS semiconductor technology and economic efficiency. However, the indirect bandgap of silicon (E<sub>g</sub> = 1.12 eV) poses difficulties for efficient inter-band emission, requiring innovative approaches to the integration of light-emitting devices on silicon platforms. One of the main strategies to overcome the limitations of silicon for light emission consists of heterogeneous integration methods, including the use of quantum cascade structures and narrow-gap semiconductors, as well as non-linear light generation. However, these methods are often associated with serious drawbacks, such as fabrication complexity and integration problems, which can hinder the achievement of scalability and reliability. This paper presents a comprehensive review of existing approaches for homogeneous integration of light sources on a silicon platform. Future research should focus on optimising these integration methods to maximise the potential of silicon in the near-infrared spectrum.https://www.mdpi.com/2304-6732/12/2/141siliconsilicon nitridephotonic integrated circuitshomogeneous integrationlight sourceslight-emitting diodes
spellingShingle Michael Kovalev
Ivan Podlesnykh
George Krasin
Nikita Dolzhenko
Sergey Kudryashov
Recent Advances in Homogeneous Integration of Emitting Structures on a Silicon Platform
Photonics
silicon
silicon nitride
photonic integrated circuits
homogeneous integration
light sources
light-emitting diodes
title Recent Advances in Homogeneous Integration of Emitting Structures on a Silicon Platform
title_full Recent Advances in Homogeneous Integration of Emitting Structures on a Silicon Platform
title_fullStr Recent Advances in Homogeneous Integration of Emitting Structures on a Silicon Platform
title_full_unstemmed Recent Advances in Homogeneous Integration of Emitting Structures on a Silicon Platform
title_short Recent Advances in Homogeneous Integration of Emitting Structures on a Silicon Platform
title_sort recent advances in homogeneous integration of emitting structures on a silicon platform
topic silicon
silicon nitride
photonic integrated circuits
homogeneous integration
light sources
light-emitting diodes
url https://www.mdpi.com/2304-6732/12/2/141
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AT nikitadolzhenko recentadvancesinhomogeneousintegrationofemittingstructuresonasiliconplatform
AT sergeykudryashov recentadvancesinhomogeneousintegrationofemittingstructuresonasiliconplatform