Alkali chalcogenides-assisted vapor-liquid-solid growth of WX

Yi-Cheng Chiang, Po-Yen Liu, Erh-Chen Lin, Sheng-Hung Fan, Chih-Chieh Hung, Yu-Hsiang Cheng, Yi-Hsien Lee

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Article in Discover nano, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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7 authors.

Yi-Cheng Chiang *Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.

Po-Yen Liu *Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.

Erh-Chen Lin *Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.

Sheng-Hung FanDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.

Chih-Chieh HungDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.

Yu-Hsiang ChengDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan.

Yi-Hsien LeeDepartment of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan. yhlee.mse@mx.nthu.edu.tw.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Promoter-assisted chemical vapor deposition (CVD) has emerged as a robust strategy for the low-temperature synthesis of diverse transition metal dichalcogenides (TMDs). In these processes, promoter-induced intermediates facilitate specific reaction pathways, enabling controlled growth via vapor-solid-solid (VSS) or vapor-liquid-solid (VLS) modes. While previous studies have primarily focused on transition metal precursors, growth pathways involving engineered chalcogen-based intermediates remain underexplored due to their volatility and low melting points. Here, we demonstrate a stabilized chalcogen strategy that enables the scalable growth of highly crystalline tungsten-based (W-) TMDs through the formation of alkali-chalcogen mixtures within the VLS regime. Atomically resolved scanning tunneling microscopy (STM) of transferred WTe

Indexed as

Alkali chalcogenidesPromoter-assisted CVDSTMTransition metal dichalcogenidesUltraclean manipulationWTe2

Identifiers

PMID40928550

DOI10.1186/s11671-025-04340-5

PMCPMC12423382

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.