| Full text | |
| Author(s): |
Merces, Leandro
[1]
;
Candiotto, Graziani
[2, 3]
;
Minatogau Ferro, Leticia Marie
[4, 1]
;
de Barros, Anerise
[4]
;
Santos Batista, Carlos Vinicius
[1, 5]
;
Nawaz, Ali
[6]
;
Riul Jr, Antonio
;
Capaz, Rodrigo B.
[3, 1]
;
Bof Bufon, Carlos Cesar
[4, 7, 1, 5]
Total Authors: 9
|
| Affiliation: | [1] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Nanotechnol Natl Lab LNNano, BR-13083100 Campinas, SP - Brazil
[2] Univ Fed Rio de Janeiro, Inst Quim, BR-21941909 Rio De Janeiro, RJ - Brazil
[3] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ - Brazil
[4] Univ Estadual Campinas, Inst Chem, BR-13083970 Campinas, SP - Brazil
[5] Sao Paulo State Univ, Postgrad Program Mat Sci & Technol, BR-17033360 Bauru, SP - Brazil
[6] Bruno Kessler Fdn FBK, Ctr Sensors & Devices, I-38123 Trento - Italy
[7] Univ Prebiteriana Mackenzie, BR-01302907 Sao Paulo - Brazil
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | SMALL; v. 17, n. 45 OCT 2021. |
| Web of Science Citations: | 2 |
| Abstract | |
Intermolecular electron-transfer reactions are key processes in physics, chemistry, and biology. The electron-transfer rates depend primarily on the system reorganization energy, that is, the energetic cost to rearrange each reactant and its surrounding environment when a charge is transferred. Despite the evident impact of electron-transfer reactions on charge-carrier hopping, well-controlled electronic transport measurements using monolithically integrated electrochemical devices have not successfully measured the reorganization energies to this date. Here, it is shown that self-rolling nanomembrane devices with strain-engineered mechanical properties, on-a-chip monolithic integration, and multi-environment operation features can overcome this challenge. The ongoing advances in nanomembrane-origami technology allow to manufacture the nCap, a nanocapacitor platform, to perform molecular-level charge transport characterization. Thereby, employing nCap, the copper-phthalocyanine (CuPc) reorganization energy is probed, approximate to 0.93 eV, from temperature-dependent measurements of CuPc nanometer-thick films. Supporting the experimental findings, density functional theory calculations provide the atomistic picture of the measured CuPc charge-transfer reaction. The experimental strategy demonstrated here is a consistent route towards determining the reorganization energy of a system formed by molecules monolithically integrated into electrochemical nanodevices. (AU) | |
| FAPESP's process: | 14/25979-2 - Fabrication and characterization of devices and systems based on hybrid nanomembranes |
| Grantee: | Carlos César Bof Bufon |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 18/18136-0 - Hybrid nanodevices: magnetoelectronic transport and development of sensors based on molecules/nanomembranes |
| Grantee: | Leandro das Mercês Silva |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 14/50906-9 - INCT 2014: in Functional Complex Materials |
| Grantee: | Fernando Galembeck |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 19/10188-3 - Space-charge distributions at interfaces of metal/insulator and metal/organics applied to hybrid capacitors based on nanomembranes |
| Grantee: | Carlos Vinicius Santos Batista |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 17/02317-2 - Interfaces in materials: electronic, magnetic, structural and transport properties |
| Grantee: | Adalberto Fazzio |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 17/21117-4 - Development and characterization of nanomembrane-based electrochemical cells for biosensor application |
| Grantee: | Letícia Mariê Minatogau Ferro |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 19/14949-9 - EMU: multiuser infrastructure dedicated to nanofabrication and characterization of nanodevices at LNNano/CNPEM |
| Grantee: | Edson Roberto Leite |
| Support Opportunities: | Multi-user Equipment Program |