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   https://doi.org/10.1021/jacs.5b06454  

   Trukhina, Olga ; Rudolf, Marc ; Bottari, Giovanni ; Akasaka, Takeshi ; Echegoyen, Luis ; Torres, Tomas ; Guldi, Dirk M. ( October 2015 , Journal of the American Chemical Society)
2. Sc ₃ N@ I _h -C ₈₀ based donor–acceptor conjugate: role of thiophene spacer in promoting ultrafast excited state charge separation

   https://doi.org/10.1039/D0RA04379F  

   Caballero, Rubén ; Servián, Luis David ; Gobeze, Habtom B. ; Fernandez-Delgado, Olivia ; Echegoyen, Luis ; D'Souza, Francis ; Langa, Fernando ( May 2020 , RSC Advances)

   Light induced charge separation in a newly synthesized triphenylamine–thiophene-Sc 3 N@ I h -C 80 donor–acceptor conjugate and its C 60 analog, triphenylamine–thiophene-C 60 conjugate is reported, and the significance of the thiophene spacer in promoting electron transfer events is unraveled.
3. A New Class of Molecular Electrocatalysts for Hydrogen Evolution: Catalytic Activity of M ₃ N@C _2n (2 n = 68, 78, and 80) Fullerenes

   https://doi.org/10.1021/jacs.0c13002  

   Puente Santiago, Alain R. ; Sanad, Mohamed Fathi ; Moreno-Vicente, Antonio ; Ahsan, Md Ariful ; Cerón, Maira R. ; Yao, Yang-Rong ; Sreenivasan, Sreeprasad T. ; Rodriguez-Fortea, Antonio ; Poblet, Josep M. ; Echegoyen, Luis ( April 2021 , Journal of the American Chemical Society)
4. Sc ₃ N@C ₈₀ and La@C ₈₂ doped graphene for a new class of optoelectronic devices

   https://doi.org/10.1039/c9tc06145b  

   Jayanand, Kishan ; Chugh, Srishti ; Adhikari, Nirmal ; Min, Misook ; Echegoyen, Luis ; Kaul, Anupama B. ( March 2020 , Journal of Materials Chemistry C)

   High-performance hybrid graphene photodetectors were prepared with endohedral fullerenes deposited on graphene using electrophoretic methods for the first time. Endohedral Sc 3 N@C 80 , which acts as an electron acceptor, was used and the ensuing electronic and optoelectronic properties were measured. Another endohedral fullerene, La@C 82 , was also adsorbed on graphene, which acts as an electron donor. Upon optical illumination, for the Sc 3 N@C 80 –graphene hybrid, the photoinduced free holes are injected into graphene, increasing the hole carrier concentration in graphene, while the photoexcited electrons remain in Sc 3 N@C 80 ; this leads to amore »high photoresponsivity  of ∼10 9 A W −1 , detectivity D of ∼10 15 Jones, and external quantum efficiency EQE ∼ 10 9 % for the Sc 3 N@C 80 –graphene hybrid. This  is ∼10 times higher compared to other reports of quantum dot-graphene and few layer MoS 2 –graphene heterostructures. Similarly, for the La@C 82 –graphene hybrid,  ∼ 10 8 A W −1 , D ∼ 10 14 Jones, and EQE ∼ 10 6 % were achieved, with electrons being injected into graphene. The exceptional performance gains achieved with both types of hybrid structures confirms the potential of endohedrals to dope graphene for high performance optoelectronic devices using a facile and scalable fabrication process.« less
5. Regioselective Synthesis and Characterization of Tris- and Tetra-Prato Adducts of M ₃ N@C ₈₀ (M = Y, Gd)

   https://doi.org/10.1021/jacs.9b13768  

   Semivrazhskaya, Olesya ; Aroua, Safwan ; Yulikov, Maxim ; Romero-Rivera, Adrian ; Stevenson, Steven ; Garcia-Borràs, Marc ; Osuna, Sílvia ; Yamakoshi, Yoko ( July 2020 , Journal of the American Chemical Society)