A Monolayer Polyoxometalate Superlattice

He, Peilei; Xu, Biao; Wang, Pengpeng; Liu, Huiling; Wang, Xun

doi:10.1002/adma.201400856

Cited by 55 publications

(51 citation statements)

References 53 publications

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“…[11,12] The PCE of OPV cells is mainly related with their open-circuit voltage (V OC ), short-circuit current (J SC ), and fill factor (FF). [13][14][15][16] In the fullerene-based bulk heterojunction (BHJ) polymer solar cells (PSCs), the V OC is linearly proportional to the difference between the high occupied molecular orbital (HOMO) energy level of the poly mer donor and the lowest unoccupied molecular orbital (LUMO) energy level of the fullerene acceptor. [17,18] In other words, the value of V OC can be increased by decreasing the HOMO energy level of polymer donor or elevating the LUMO energy level of acceptor.…”

Section: Doi: 101002/marc201900074mentioning

confidence: 99%

Medium‐Bandgap Conjugated Polymer Donors for Organic Photovoltaics

Sun

Song

et al. 2019

Macromol. Rapid Commun.

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Recently, an increasing number of researchers have begun to focus on developing nonfullerene acceptors, so it is very important to synthesize new polymers that are compatible with nonfullerene acceptors. Besides, wide‐ or medium‐bandgap polymer donors could be better to match narrow nonfullerene acceptors. The design of medium‐bandgap (MBG) polymer donors and their application in organic photovoltaics (OPVs) play an important part in the improvement of OPV device performance. This review summarizes the photovoltaic performance of MBG polymers that have been reported during the last decade. Furthermore, their structure–property relationships and device performance are discussed. On the basis of analyzing many polymer structures, guidance toward the design of novel photovoltaic materials might be helpful to understand the basic OPV mechanism and the path towards commercialization.

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Section: Doi: 101002/marc201900074mentioning

confidence: 99%

Medium‐Bandgap Conjugated Polymer Donors for Organic Photovoltaics

Sun

Song

et al. 2019

Macromol. Rapid Commun.

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“…Actually, the POMs can also serve as protecting ligands for decoration of NPs. Numberous examples of POM-protected nanoscale inorganic materials such as metals [159,160], oxides [161], halides [162] and graphene oxide (GO) [163] have been reported.…”

Section: Precipitation Reactionmentioning

confidence: 99%

Understanding of the major reactions in solution synthesis of functional nanomaterials

Wang

2016

Sci. China Mater.

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This review covers the major reactions involved in the solution synthesis of nanomaterials. It was designed to classify the traditional strategies such as precipitation, reduction, seed growth, etching, and so on into two basic processes which are termed as bottom-up and top-down routines. The discussion is focused on the basic mechanism and principles during the nucleation and growth of nanocrystals, especially in the solution system. This review also presents a prediction for how to utilize these intrinsic processes to artificially construct the desired specific and functional nanostructures. We try to describe the most directive and effective way to control the structures of nanocrystals for researchers who can master the major reaction mechanism and grasp the basic technologies in synthetic nanoscience.

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“…[7] Besides the optical and electrochemical properties, the processability and the control of the morphology play a crucial role with respect to the fabrication of working devices. Therefore, the introduction of hydrophilic phaseforming moieties in the applied polymers is a potent strategy to guarantee the solubility in environmentally friendly polar solvents, e.g., water or alcohols, [8][9][10][11][12][13] to allow the application of orthogonal solvents in the layer-by-layer processes [11] and to control the morphology by self-assembly of the macromolecules. [14][15][16][17][18][19] In this contribution, the synthesis of oligo-and poly-(ethylene glycol) (PEG) decorated naphthalene diimide (NDI)-based styrenic polymers is presented in order to increase the hydrophilicity of acceptor-photosensitizer dyads and, thereby, the solubility and processability in polar solvents in comparison with the alkyl-substituted analogs.…”

Section: Introductionmentioning

confidence: 99%

Hydrophilic Poly(naphthalene diimide)‐Based Acceptor–Photosensitizer Dyads: Toward Water‐Processible Modular Photoredox‐Active Architectures

Schroot

Schlotthauer

Jäger

et al. 2017

Macro Chemistry & Physics

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Hydrophilic naphthalene diimide based acceptor polymers are prepared by the incorporation of triethylene glycol or poly(ethylene glycol) side chains in the monomers and subsequent nitroxide‐mediated polymerization (NMP). The kinetic investigation of the polymerization reveals a controlled chain growth as well as a narrow molar mass distribution. Due to the utilization of a functional NMP initiator, a single Ru(II) photosensitizer unit is readily attached at the polymers chain terminus by a modular approach to construct water soluble photoredox‐active acceptor–photosensitizer dyads. The analysis of the optical properties by steady‐state absorption and emission spectroscopy reveals preserved optical absorption properties of the individual building blocks, and, more importantly, an efficient quenching of the Ru(II) emission assigned to intramolecular charge transfer from the complex to the acceptor polymer. The results demonstrate the versatility of side chain modifications to prepare water‐processible photoredox‐active architectures under preservation of the modular character known from hydrophobic systems.

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A Monolayer Polyoxometalate Superlattice

Cited by 55 publications

References 53 publications

Medium‐Bandgap Conjugated Polymer Donors for Organic Photovoltaics

Medium‐Bandgap Conjugated Polymer Donors for Organic Photovoltaics

Understanding of the major reactions in solution synthesis of functional nanomaterials

Hydrophilic Poly(naphthalene diimide)‐Based Acceptor–Photosensitizer Dyads: Toward Water‐Processible Modular Photoredox‐Active Architectures

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