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Ramakrishna Y, Naresh M, Mrinalini M, Pravallika N, Kumari P, Bhavani B, Giribabu L, Prasanthkumar S. Narcissistic self-sorting in Zn(II) porphyrin derived semiconducting nanostructures. Nanoscale 2024. [PMID: 38683187 DOI: 10.1039/d4nr00991f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The narcissistic self-sorted phenomenon is explicitly attributed to the structural similarities in organic molecules. Although such relevant materials are rarely explored, self-sorted structures from macrocyclic π-conjugated-based p- and n-type organic semiconductors facilitate the increase of exciton dissociation and charge separation in bulk heterojunction solar cells. Herein, we report two extended π-conjugated derivatives consisting of zinc-porphyrin-linked benzothiadiazole acting as an acceptor (PB) and anthracene as a donor (PA). Despite having the same porphyrin π-conjugated core in PA and PB, variations in donor and acceptor moieties make the molecular packing form one-dimensional (1D) self-assembled nanofibers via H- and J-type aggregates. Interestingly, a dissimilar aggregate of PA and PB exists as a mixture (PA + PB), promoting narcissistic self-sorted structures. Electrochemical impedance investigation reveals that the electronic characteristics of self-sorting assemblies are influenced by the difference in electrostatic potentials for PA and PB, resulting in a transitional electrical conductivity of 0.14 S cm-1. Therefore, the design of such materials for the fabrication of effective photovoltaics is promoted by these extraordinary self-sorted behaviors in comparable organic π-conjugated molecules.
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Affiliation(s)
- Yelukula Ramakrishna
- Department of Polymer & Functional Materials, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, Telangana, India.
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad-201 002, India
| | - Madarapu Naresh
- Department of Polymer & Functional Materials, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, Telangana, India.
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad-201 002, India
| | - Madoori Mrinalini
- Department of Polymer & Functional Materials, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, Telangana, India.
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad-201 002, India
- Materials Chemistry Department, CSIR-Institute of Minerals and Materials Technology (IMMT), Bhubaneswar - 751 013, Odisha, India
| | - Nagadatta Pravallika
- Department of Polymer & Functional Materials, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, Telangana, India.
| | - Priti Kumari
- Department of Polymer & Functional Materials, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, Telangana, India.
| | - Botta Bhavani
- Department of Polymer & Functional Materials, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, Telangana, India.
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad-201 002, India
| | - Lingamallu Giribabu
- Department of Polymer & Functional Materials, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, Telangana, India.
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad-201 002, India
| | - Seelam Prasanthkumar
- Department of Polymer & Functional Materials, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad-500007, Telangana, India.
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad-201 002, India
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