Catenated Silicon Compounds

Baumgartner, Judith; Grogger, Christa

doi:10.1016/b978-0-08-097774-4.00103-0

Cited by 5 publications

(9 citation statements)

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“…There are numerous reviews on hydrosilanes. [36][37][38][39][40][41][42] The chapters about higher linear silanes and cyclic polysilanes in Gmelin give an excellent overview of the physical properties and chemical behavior of these compounds. [36] The article by Baumgartner and Grogger gives a systematic overview of hydrosilanes, halogenohydrosilanes, and halogenosilanes.…”

Section: Introductionmentioning

confidence: 99%

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Challenges in the Synthesis and Processing of Hydrosilanes as Precursors for Silicon Deposition

Gerwig,

Böhme,

Friebel

2024

Chemistry A European J

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Liquid hydrosilanes are required for the production of silicon films. The silicon layers can be processed for electronic devices like transistors or thin‐film solar cells. Hydrosilanes are highly reactive and pyrophoric. Therefore, the synthesis of these compounds is challenging and dangerous. The available synthesis methods for hydrosilanes are reviewed and compared.Hydrosilanes are highly attractive compounds, which can be processed as liquids with printing technology to amorphous silicon films on nearly any solid substrate. The silicon layers can be processed for electronic devices like transistors or thin‐film solar cells. The endothermic character of hydrosilanes with their positive enthalpies of formation results in favorable properties for processing. The larger the molecules, the lower their decomposition temperature and the higher their photoactivity. Cyclic hydrosilanes such as cyclopentasilane and cyclohexasilane can be easily deposited. The branched neopentasilane is more difficult to deposit but yields better‐quality films after processing.The key challenge is the complex synthesis of the precursors and the hydrosilanes. The available preparative methods are presented in this review and their advantages and disadvantages are evaluated. The following synthesis methods are presented and discussed in this article: Wurtz coupling and other reductive coupling processes, dehydrogenative coupling of silanes, plasma synthesis of chlorinated polysilanes, amine‐ or chloride‐induced disproportionations, and transformation of monosilane to higher silanes.Plasma synthesis is already carried out today as a continuous industrial process. The most effective synthesis methods in the laboratory are currently amine‐ and chloride‐induced disproportionations. There is a great need to further optimize the syntheses of hydrosilanes and to develop new simple synthesis variants.

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Section: Introductionmentioning

confidence: 99%

“…[36] The article by Baumgartner and Grogger gives a systematic overview of hydrosilanes, halogenohydrosilanes, and halogenosilanes. [41] This can be used by readers who want to delve deeper into the subject.…”

Section: Introductionmentioning

confidence: 99%

Challenges in the Synthesis and Processing of Hydrosilanes as Precursors for Silicon Deposition

Gerwig,

Böhme,

Friebel

2024

Chemistry A European J

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“…The chemistry of polysilanes has now been studied for more than 100 years. [1][2][3][4][5] While their structural chemistry resembles that of alkanes, their property of electron conjugation suggests some similarity to unsaturated hydrocarbons. Structurally, cyclic and polycyclic polysilanes are the higher congeners of cyclo-and polycycloalkanes.…”

Section: Introductionmentioning

confidence: 99%

Selective synthesis of germasila-adamantanes through germanium–silicon shift processes

et al. 2023

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“…In the past decades, homonuclear Si–, 1–3 Ge–, 4–7 and Sn-containing 4,8 oligomers have been intensely studied. One reason for this continued interest is the substantial delocalization of the skeletal σ electrons along the oligomer backbones.…”

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Group IV heteroadamantanes: synthesis of Si₆Sn₄and site-selective derivatization of Si₆Ge₄

et al. 2023

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Catenated Silicon Compounds

Cited by 5 publications

References 253 publications

Challenges in the Synthesis and Processing of Hydrosilanes as Precursors for Silicon Deposition

Challenges in the Synthesis and Processing of Hydrosilanes as Precursors for Silicon Deposition

Selective synthesis of germasila-adamantanes through germanium–silicon shift processes

Group IV heteroadamantanes: synthesis of Si₆Sn₄and site-selective derivatization of Si₆Ge₄

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Catenated Silicon Compounds

Cited by 5 publications

References 253 publications

Challenges in the Synthesis and Processing of Hydrosilanes as Precursors for Silicon Deposition

Challenges in the Synthesis and Processing of Hydrosilanes as Precursors for Silicon Deposition

Selective synthesis of germasila-adamantanes through germanium–silicon shift processes

Group IV heteroadamantanes: synthesis of Si6Sn4and site-selective derivatization of Si6Ge4

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Group IV heteroadamantanes: synthesis of Si₆Sn₄and site-selective derivatization of Si₆Ge₄