2022
DOI: 10.1002/marc.202200699
|View full text |Cite
|
Sign up to set email alerts
|

Phenothiazine‐Based Donor–Acceptor Polymers as Multifunctional Materials for Charge Storage and Solar Energy Conversion

Abstract: The increasing energy demand for diverse applications requires new types of devices and materials. Multifunctional materials that can fulfill different roles are of high interest as they can allow fabricating devices that can both convert and store energy. Herein, organic donor–acceptor redox polymers that can function as charge storage materials in batteries and as donor materials in bulk heterojunction (BHJ) photovoltaic devices are investigated. Based on its reversible redox chemistry, phenothiazine is used… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

0
8
0

Year Published

2023
2023
2024
2024

Publication Types

Select...
5
1

Relationship

4
2

Authors

Journals

citations
Cited by 9 publications
(10 citation statements)
references
References 61 publications
0
8
0
Order By: Relevance
“… Embedding small redox active molecules into polymeric frameworks disfavors migration processes between the electrodes and enables an easier material processing . Among the most prominent and thoroughly investigated ROMs are polymeric nitroxide radicals such as poly­(2,2,6,6-tetramethyl-1-piperidinyloxy methacrylate) (PTMA) or poly­(galvinoxyl-styrene). , However, other ROMs have also been successfully turned into polymer cathode materials such as phenazines, phenothiazines/oxazines, dimethoxybenzenes, and cyclopropenium salts …”
Section: Introductionmentioning
confidence: 99%
“… Embedding small redox active molecules into polymeric frameworks disfavors migration processes between the electrodes and enables an easier material processing . Among the most prominent and thoroughly investigated ROMs are polymeric nitroxide radicals such as poly­(2,2,6,6-tetramethyl-1-piperidinyloxy methacrylate) (PTMA) or poly­(galvinoxyl-styrene). , However, other ROMs have also been successfully turned into polymer cathode materials such as phenazines, phenothiazines/oxazines, dimethoxybenzenes, and cyclopropenium salts …”
Section: Introductionmentioning
confidence: 99%
“…To synthesize nanohoop‐based polymers, we chose three electronically diverse comonomer units: a dithienyldiketo(pyrrolopyrrol) (DTDPP) (electron‐poor), a fluorene (electronically “neutral”) and a carbazole (electron‐rich). These were employed in the form of their respective bis(boronic esters) 6 , 7 and 8 in order to perform Suzuki–Miyaura polycondensation reactions [40,41] . These polymerizations successfully furnished the nanohoop polymers P1 , P2 , and P3 in good yields of 46–51 %.…”
Section: Resultsmentioning
confidence: 99%
“…These were employed in the form of their respective bis(boronic esters) 6, 7 and 8 in order to perform Suzuki-Miyaura polycondensation reactions. [40,41] These polymerizations successfully furnished the nanohoop polymers P1, P2, and P3 in good yields of 46-51 %. Analysis by analytical gel-permeation chromatography confirmed the formation of polymers with average molecular weights of M w = 6,570-19,600 g mol À 1 and with low polydispersity indexes (see exact values in the table in Scheme 1).…”
Section: Synthesismentioning
confidence: 97%
“…2,3 In contrast, batteries in which the electrode materials are organic in nature do not rely on critical resources, while also being easier to recycle, which makes them a much more environmentally friendly alternative. Even more importantly, organic batteries offer unique advantages in terms of their ability to have their properties fine-tuned by structural design to achieve superior features such as fast charging rate performance, 4 adaptability to special applications 5,6 or to tailor their redox potentials. 7,8 The latter cannot only be exploited to develop a large variety of either positive or negative electrode materials, but careful selection of the organic moieties in the active material(s) has also enabled researchers to establish battery cells based on two organic electrodes, so-called 'all-organic' full-cells.…”
Section: Introductionmentioning
confidence: 99%
“…It features a stable and reversible oxidation, a high voltage vs. Li/Li + and high specific capacity (3.5 V vs. Li/Li + and 125.7 mAh g −1 per electron, for N-methyl phenothiazine), which is accompanied by the synthetic possibility to incorporate PT into different motifs. 4,5,24,[32][33][34][35][36][37] Furthermore, PT is generally capable of two singleelectron oxidations from its neutral form to a radical cation and further to a dication (Figure 1). The two processes are observed at high potentials of 3.5 V 38,39 and 4.2 V vs. Li/Li + (approximation based on the redox potential of the second oxidation of N-ethylphenothiazine (0.93 V vs. Fc/Fc + ) 37 and the potential of Fc/Fc + (3.25 vs. Li/Li + ) 40 ), making PT an attractive candidate for positive electrode materials.…”
Section: Introductionmentioning
confidence: 99%