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Ultrafast Formation of Charge Transfer Trions at Molecular-Functionalized 2D MoS2 Interfaces.
Jing, Yuancheng; Liang, Kangkai; Muir, Nicole S; Zhou, Hao; Li, Zhehao; Palasz, Joseph M; Sorbie, Jonathan; Wang, Chenglai; Cushing, Scott K; Kubiak, Clifford P; Sofer, Zdenek; Li, Shaowei; Xiong, Wei.
Affiliation
  • Jing Y; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358, La Jolla, California, 92093-0358, United States.
  • Liang K; Material Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, MC 0418, La Jolla, California, 92093-0418, United States.
  • Muir NS; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358, La Jolla, California, 92093-0358, United States.
  • Zhou H; Material Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, MC 0418, La Jolla, California, 92093-0418, United States.
  • Li Z; Material Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, MC 0418, La Jolla, California, 92093-0418, United States.
  • Palasz JM; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358, La Jolla, California, 92093-0358, United States.
  • Sorbie J; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358, La Jolla, California, 92093-0358, United States.
  • Wang C; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358, La Jolla, California, 92093-0358, United States.
  • Cushing SK; Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E California Blvd, MC 127-72, Pasadena, California, 91125, United States.
  • Kubiak CP; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358, La Jolla, California, 92093-0358, United States.
  • Sofer Z; Department of Inorganic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28, Prague 6, Czech Republic.
  • Li S; Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, MC 0358, La Jolla, California, 92093-0358, United States.
  • Xiong W; Material Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, MC 0418, La Jolla, California, 92093-0418, United States.
Angew Chem Int Ed Engl ; 63(30): e202405123, 2024 Jul 22.
Article in En | MEDLINE | ID: mdl-38714495
ABSTRACT
In this work, we investigate trion dynamics occurring at the heterojunction between organometallic molecules and a monolayer transition metal dichalcogenide (TMD) with transient electronic sum frequency generation (tr-ESFG) spectroscopy. By pumping at 2.4 eV with laser pulses, we have observed an ultrafast hole transfer, succeeded by the emergence of charge-transfer trions. This observation is facilitated by the cancellation of ground state bleach and stimulated emission signals due to their opposite phases, making tr-ESFG especially sensitive to the trion formation dynamics. The presence of charge-transfer trion at molecular functionalized TMD monolayers suggests the potential for engineering the local electronic structures and dynamics of specific locations on TMDs and offers a potential for transferring unique electronic attributes of TMD to the molecular layers.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Angew Chem Int Ed Engl Year: 2024 Type: Article Affiliation country: United States
Fulltext
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XML
PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Angew Chem Int Ed Engl Year: 2024 Type: Article Affiliation country: United States