Conjugated polymer based on oligobenzo[c]thiophene with low-lying HOMO energy level as potential donor for bulk heterojunction solar cells

Raj, Michael Ruby; Anandan, Sambandam; Solomon, Rajadurai Vijay; Venuvanalingam, Ponnambalam; Iyer, Srikanth K.; Ashokkumar, Muthupandian

doi:10.1016/j.jphotochem.2013.04.013

Cited by 20 publications

(2 citation statements)

References 52 publications

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“…For the sake of investigating the connection between the structures of B2 and B3 compounds and their nonlinear properties, the quantum chemistry of B2 and B3 has been calculated by density functional theory (DFT) at the B3LYP/6-31G(d) theoretical level in the Gaussian 09 program. , Frontier molecular orbitals (HOMO orbitals and LUMO orbitals) of the two compounds are shown in Figure . Table shows the occupancy of each component in the frontier molecular orbital.…”

Section: Resultsmentioning

confidence: 99%

Nonlinear Optical Properties of Pyrene Derivatives Based on a Donor–Acceptor Structure and Its Polyurethane Composites

Gao

et al. 2022

ACS Omega

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Two pyrenyl Schiff base derivatives with π conjugated structures ( B2 and B3 ) were designed and synthesized. Then, B2 and B3 were added into polyurethane to obtain doped and bonded polyurethane nonlinear optical materials ( B2 /PU and B3 /PU), respectively. The synthesized B2 , B3 , and polyurethane nonlinear optical materials were tested by a nanosecond (ns) and picosecond (ps) pulse Z -scan at a 532 nm wavelength. Due to the two-photon absorption-induced excited state absorption (TPA-ESA), B2 , B3 , and polyurethane nonlinear optical materials show reverse saturable absorption (RSA). From a quantum chemistry calculation, it can be concluded that the RSA of B2 and B3 comes from the large π conjugated system and intramolecular charge transfer. Furthermore, B2 , B3 , and the polyurethane nonlinear optical materials show good optical limiting. B2 /PU and B3 /PU not only have excellent nonlinear optical properties but also have good transmittance, thermal stability, and processability of polyurethane materials. The combination of pyrenyl Schiff base derivatives and polyurethane materials greatly improves the application of nonlinear small molecules in the field of optical limiting and all-optical switching.

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Section: Resultsmentioning

confidence: 99%

Nonlinear Optical Properties of Pyrene Derivatives Based on a Donor–Acceptor Structure and Its Polyurethane Composites

Gao

et al. 2022

ACS Omega

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“…Pyrrole, furan, thiophene, and their derivatives were common monomers for synthesizing conductive polymers (Kumar et al, 2015). Thiophene derivatives have been used to synthesis polymers with wide applications such as solar cells and photoelectric cells (Raj et al, 2013).…”

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confidence: 99%

Synthesis and characterization of poly thiophene-2-carbaldehyde by hydrochloric acid as catalyst

Al-Hamdan

Al-Falah

Al-Deri³

2021

KJS publishes peer-review articles in Mathematics, Computer Sci

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Usually, thiophene and its derivatives are polymerized by chemical and electrochemical methods. In this paper, thiophene-2-carbaldehyde was polymerized by hydrochloric acid as a catalyst in alcohol as a solvent. The resulting polymer was characterized by (FT/IR, 1H-NMR, EDX, and XPS) to determine the polymer structure. The resulting polymer was scanned by scanning electron microscope (SEM) for its morphological properties. We found the polymer consisting of spherical particles with a rough surface (average diameters of 127 nanometers) that clump together and form clusters.

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Routes to High Energy Cathodes of Sodium‐Ion Batteries

Fang

Huang

Zhang

et al. 2015

Advanced Energy Materials

448

297

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and environmental friendliness of the batteries. As a rare metal element, Li resources in the earth and their accessibility at low cost are a serious concern for upcoming larger-scale EES applications. Therefore, it is greatly needed to develop new batteries that are built up from environmentally benign and sustainable electrode materials. In the development of these new technologies, ambient sodium-ion batteries (SIBs) are revived and actively investigated as promising alternatives to LIBs for the next-generation energy storage devices due to the natural abundance of Na resources and the similar intercalation chemistry of Na + ions to their lithium counterpart. As a "rockingchair" type battery, the charge-discharge reactions of SIBs take place through a reversible Na + -intercalation mechanism, while Na ions move off from the cathode host, pass through the electrolyte and then insert into the anode host during charge, and vice versa during discharge. Meanwhile, electrons move from anode to cathode during charge or from cathode to anode during discharge through the external circuit, thus storing or delivering electric energy in a direct electrochemical manner.Studies on Na-intercalation chemistry can be dated back to the early 1980s, [ 2,3 ] almost in the same period as the development of Li-ion technology. Soon after the fi rst demonstration of lithium intercalation compounds for battery application, [4][5][6] the Na insertion behavior of Na x CoO 2 was also revealed as a cathode host. [ 7,8 ] Earlier pioneering works on earlier development of Na-ion technologies were given in a recent review. [ 9 ] Unfortunately, development of SIBs has almost halted in the past three decades since the successful commercialization of LIBs in the 1990s. A major reason for this embarrassment is the diffi culty to fi nd Na-host materials with comparable high capacities and suitable working potentials as their Li analogues. Because of larger atomic weight and less negative potential of Na than Li, Na-host materials have to suffer from a lower energy density than their Li counterparts. Furthermore, the larger ion radius of Na + (1.02 Å) than that of Li + (0.76 Å) make them kinetically frustrated during their insertion and transport in the host lattices, which further decreases the capacity utilization and rate performance of the materials.In recent years, great efforts have been made to achieve considerable success in understanding the Na + intercalation chemistry and in developing Na-host materials. It is now recognized that Na-host materials cannot simply be duplicated from their lithium analogues. For example, Okada and Sodium-ion batteries (SIBs) are now being actively developed as low cost and sustainable alternatives to lithium-ion batteries (LIBs) for large-scale electric energy storage applications. In recent years, various inorganic and organic Na compounds, mostly mimicked from their Li counterparts, have been synthesized and tested for SIBs, and some of them indeed demonstrate comparable specifi c capacity to the presentl...

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Conjugated polymer based on oligobenzo[c]thiophene with low-lying HOMO energy level as potential donor for bulk heterojunction solar cells

Cited by 20 publications

References 52 publications

Nonlinear Optical Properties of Pyrene Derivatives Based on a Donor–Acceptor Structure and Its Polyurethane Composites

Nonlinear Optical Properties of Pyrene Derivatives Based on a Donor–Acceptor Structure and Its Polyurethane Composites

Synthesis and characterization of poly thiophene-2-carbaldehyde by hydrochloric acid as catalyst

Routes to High Energy Cathodes of Sodium‐Ion Batteries

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