Organic diradicals enabled N-type self-doped conjugated polyelectrolyte with high transparency and enhanced conductivity

Tang, Haoran; Liu, Zixian; Tang, Yixu; Du, Zurong; Liang, Yuanying; Hu, Zhicheng; Zhang, Kai; Huang, Fei; Cao, Yong

doi:10.1016/j.giant.2021.100053

Cited by 42 publications

(32 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results reveal the delicate structure tuning of SAMs for ZnO NPs can largely affect the photovoltaic properties of the corresponding OSCs, wherein, of the three SAMs, S3 promotes the best photovoltaic performance. Besides, we have also verified that the effect of S3/ZnO weight ratio on the photovoltaic performance (Figure S5 [42][43][44][45] Table S1). It revealed that the photovoltaic performance for S3-ZnO NPs with the weight ratio of 1:10 outperforms those with 1:5 and 1:15 weight ratios.…”

Section: Resultssupporting

confidence: 54%

“…Impressively, the PCE could maintain at 80.57% of the best PCE with 200 nm of S3-ZnO NPs ETLs (at 70.06% of the best PCE with 300 nm of ETLs), which represents ETLs with the most desirable thickness insensitive features (up to 300 nm) so far (Table S2). [42][43][44][45] As reference, the PFN-Br as the ETLs displays a strong performance dependence on the film thickness (up to ~10 nm). Note that ETLs with thickness insensitive properties are desirable for the fabrication of large-area photovoltaic films, since the scale-up coating usually gives less precise thickness control.…”

Section: It Indicates That the Proper Surface Modification Of Zno Nps...mentioning

confidence: 99%

See 1 more Smart Citation

Healing the degradable organic–inorganic heterointerface for highly efficient and stable organic solar cells

Tao

Liu

Wang

et al. 2022

InfoMat

View full text Add to dashboard Cite

The heterointerface between the contacted organic and inorganic semiconductors critically affects the charge extraction, hence overall performance of organic optoelectronics, especially for organic solar cells (OSCs). Herein, we develop an effective interfacial strategy that simultaneously boosts the chemical, electric, and electronic properties of the organic-inorganic heterointerface of the derived OSCs, through implanting conjugated molecules as selfassemble monolayers (SAMs) to metal oxide nanoparticles (MO NPs). As results, SAM passivated zinc oxide nanoparticles (ZnO NPs) as electron transport layers (ETLs) not only enable the best performed OSCs containing MO ETLs, but also exhibit the most desirable thickness insensitive features (up to 300 nm). In addition, SAM-ZnO ETLs help also substantially improving the photostability of the derived OSCs. Overall, this work can be beneficial to the further development of high-performance and cost-effective OSCs.

show abstract

Section: Resultssupporting

confidence: 54%

Section: It Indicates That the Proper Surface Modification Of Zno Nps...mentioning

confidence: 99%

Healing the degradable organic–inorganic heterointerface for highly efficient and stable organic solar cells

Tao

Liu

Wang

et al. 2022

InfoMat

View full text Add to dashboard Cite

show abstract

“…Bulk heterojunction (BHJ) polymer solar cells (PSCs), as one of the most promising next-generation photovoltaic devices [1,2], have attracted considerable interest due to their versatile advantages of lightweight, flexibility, and ability to manufacture low-cost large-area devices [3,4]. In particular, PSCs with a incorporating conjugated polymer donor and a non-fullerene small-molecule acceptor (NFSMA) as an active layer have achieved significant advances due to continuous innovations in the development of efficient photovoltaic materials [5][6][7] and interface buffer layer materials [8], as well as the optimization of active layer mor-phology [9,10]. Accordingly, the power conversion efficiencies (PCE) have been rapidly boosted [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

High-performance polymer solar cells with efficiency over 18% enabled by asymmetric side chain engineering of non-fullerene acceptors

et al. 2021

Self Cite

View full text Add to dashboard Cite

Side-chain engineering has been considered as one of the most promising strategies to optimize non-fullerene small-molecule acceptors (NFSMAs). Previous efforts were focused on the optimization of alkyl-chain length, shape, and branching sites. In this work, we propose that asymmetric side-chain engineering can effectively tune the properties of NFSMAs and improve the power conversion efficiency (PCE) for binary non-fullerene polymer solar cells (NFPSCs). Specifically, by introducing asymmetric side chains into the central core, both of the absorption spectra and molecule orientation of NFSMAs are efficiently tuned. When blended with polymer donor PM6, NFPSCs with EH-HD-4F (2-ethylhexyl and 2-hexyldecyl side chains) demonstrate a champion PCE of 18.38% with a short-circuit current density (J SC ) of 27.48 mA cm −2 , an open circuit voltage (V OC ) of 0.84 V, and a fill factor (FF) of 0.79. Further studies manifest that the proper asymmetric side chains in NFSMAs could induce more favorable face-on molecule orientation, enhance carrier mobilities, balance charge transport, and reduce recombination losses.

show abstract

“…Self-n-doping amine and ammonium moieties have been incorporated as molecular components in a range of materials research fields, such as in low-dimensional perovskite-related hybrids, electron transporting materials in solar cells, thermoelectric composites, work function modifiers, and more. [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] While the chemical structures of the self-ndoped semiconductors seen across the literature are diverse, the most common derivatives are fullerenes, perylene diimides, naphthalene diimides, and fluorenes as shown in Figure 1. Each scaffold shown here exhibits a unique set of intrinsic physicochemical properties.…”

Section: Introductionmentioning

confidence: 99%

Concepts and principles of self-n-doping in perylene diimide chromophores for applications in biochemistry, energy harvesting, energy storage, and catalysis

Powell

Whittaker‐Brooks

2022

Preprint

View full text Add to dashboard Cite

Self-doping is an important method of increasing carrier concentrations in organic electronics that completely eliminates the need to tailor host—dopant miscibility; a necessary step when employing molecular dopants. Self-n-doping can be accomplished using amine or ammonium moieties as an electron source, and is being incorporated into an ever-increasingly diverse range of organic materials spanning many applications. Self-n-doped materials have demonstrated good, and in many cases, benchmark performances in a variety of applications. However, an in-depth review of the method is lacking. Perylene diimide (PDI) chromophores are an important mainstay in the semiconductor literature with well-known structure-function characteristics and are also one of the most widely utilized scaffolds for self-n-doping. In this review, we describe the unique properties of self-n-doped PDIs, delineate structure-function relationships, and discuss self-n-doped PDI performance in a range of applications. In particular, the impact of amine/ammonium incorporation into the PDI scaffold on doping efficiency is reviewed with regard to attachment mode, tether distance, counterion selection, and steric encumbrance. Self-n-doped PDIs are a unique set of PDI structural derivatives whose properties are amenable to a broad range of applications in biochemistry, solar energy conversion, thermoelectric modules, batteries, and photocatalysis. Finally, we discuss challenges and the future outlook of self-n-doping principles.

show abstract

Organic diradicals enabled N-type self-doped conjugated polyelectrolyte with high transparency and enhanced conductivity

Cited by 42 publications

References 46 publications

Healing the degradable organic–inorganic heterointerface for highly efficient and stable organic solar cells

Healing the degradable organic–inorganic heterointerface for highly efficient and stable organic solar cells

High-performance polymer solar cells with efficiency over 18% enabled by asymmetric side chain engineering of non-fullerene acceptors

Concepts and principles of self-n-doping in perylene diimide chromophores for applications in biochemistry, energy harvesting, energy storage, and catalysis

Contact Info

Product

Resources

About