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- Title
Excited‐State Charge Transfer in Covalently Functionalized MoS<sub>2</sub> with a Zinc Phthalocyanine Donor–Acceptor Hybrid.
- Authors
Canton‐Vitoria, Ruben; Gobeze, Habtom B.; Blas‐Ferrando, Vicente M.; Ortiz, Javier; Jang, Youngwoo; Fernández‐Lázaro, Fernando; Sastre‐Santos, Ángela; Nakanishi, Yusuke; Shinohara, Hisanori; D'Souza, Francis; Tagmatarchis, Nikos
- Abstract
The functionalization of MoS2 is of paramount importance for tailoring its properties towards optoelectronic applications and unlocking its full potential. Zinc phthalocyanine (ZnPc) carrying an 1,2‐dithiolane oxide linker was used to functionalize MoS2 at defect sites located at the edges. The structure of ZnPc‐MoS2 was fully assessed by complementary spectroscopic, thermal, and microscopy imaging techniques. An energy‐level diagram visualizing different photochemical events in ZnPc‐MoS2 was established and revealed a bidirectional electron transfer leading to a charge separated state ZnPc.+‐MoS2.−. Markedly, evidence of the charge transfer in the hybrid material was demonstrated using fluorescence spectroelectrochemistry. Systematic studies performed by femtosecond transient absorption revealed the involvement of excitons generated in MoS2 in promoting the charge transfer, while the transfer was also possible when ZnPc was excited, signifying their potential in light‐energy‐harvesting devices.
- Subjects
CHARGE transfer; MOLYBDENUM disulfide; ZINC phthalocyanine; CHARGE exchange; EXCITON theory
- Publication
Angewandte Chemie, 2019, Vol 131, Issue 17, p5768
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201900101