Polymer Translocation

Lu, Lu-Wei; Wang, Zhenhua; Shi, An‐Chang; Lu, Yuehui; An, Lijia

doi:10.1007/s10118-023-2975-6

Cited by 5 publications

(7 citation statements)

References 124 publications

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“…This phenomenon is caused by the competition between topology and chain length effects. In Figure 4, we show the orientational order parameter P, the relative shape anisotropy κ 2 , the dihedral potential energy U φ , the Coulomb potential energy U c , the nonbonded interaction potential (U lj + U c ), and the first derivative of nonbonded interaction potential d(U lj + U c )/dT of single linear and cyclic PE chains with different lengths of N c at T = 100 K. Here, the selection length intervals of N c for linear and cyclic PE chains are [25,100] and [50,200], respectively. From Figure 4, oscillations of these conformational potential components at crystalline state with chain length N c for cyclic chains are more obvious than that for their linear counterparts, which is caused by the competition between cyclic topology and chain length effects.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…As analyzed above, the topological effect dominates the conformation of a short chain, while the chain length effect dominates that of a long chain. In the intermediate region of chain length N c ∈ [50,200], this competition results in the so-called odd−even effect.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…43 The investigation of single-chain crystallization holds the potential to enhance our comprehension of the crystallization process in more intricate polymer melts. Previous research has led to the discovery of single-chain glasses, 44,45 single-chain crystals, 46−48 single-chain translocation, 49,50 and the transition of a single chain from coil to globule in solution. 51,52 The aforementioned research indicates the feasibility and necessity of exploring the molecular characteristics of polymer crystallization through computer simulations.…”

Section: ■ Introductionmentioning

confidence: 99%

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State Transitions and Crystalline Structures of Single Polyethylene Rings: MD Simulations

Liu,

Jiang,

Luo

et al. 2024

J. Phys. Chem. B

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This study investigates the structural changes of cyclic polyethylene (PE) single chains during cooling through molecular dynamics simulations. The influence of topological constraint on a ring is examined by comparing it with the results of its linear counterpart. A pseudo phase diagram of state transition for PE rings based on length and temperature is constructed, revealing a consistent chain-folding transition during cooling. The shape anisotropy of short crystallized cyclic chains exhibits oscillations with chain length, leading to a more pronounced odd−even effect in single cyclic chains compared with the linear ones. A honeycomb model is proposed to elucidate the odd−even effect of chain folding in crystalline structures of single linear and cyclic chains, and we discuss its potential to predict surface tension. Analyses of the tight folding model and the re-entry modes demonstrate that a cyclic chain possesses a shorter average crystalline stem length and a more compact folded structure than its linear counterpart. The findings highlight the impact of topological change on crystallization and the odd−even effect of chain length, providing valuable insights for understanding polymer crystallization with different topologies.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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State Transitions and Crystalline Structures of Single Polyethylene Rings: MD Simulations

Liu,

Jiang,

Luo

et al. 2024

J. Phys. Chem. B

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“…2D semiconductors with pristine surfaces can keep high mobility and low leakage current at one atomic‐scale thickness and thus will be one of the most promising candidates for further ultrascaling. [ 17–25 ]…”

Section: Introductionmentioning

confidence: 99%

“…2D semiconductors with pristine surfaces can keep high mobility and low leakage current at one atomic-scale thickness and thus will be one of the most promising candidates for further ultrascaling. [17][18][19][20][21][22][23][24][25] In this article, we demonstrate a 2D NS vertical-stacked CFET based on chemical vapor deposition (CVD) 1L MoS 2 NS FET and WSe 2 NS FET. Through extensive design and optimization of the…”

mentioning

confidence: 99%

Large‐Scale Ultrathin Channel Nanosheet‐Stacked CFET Based on CVD 1L MoS₂/WSe₂

Liu

Niu

Yang

et al. 2022

Adv Elect Materials

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Nanosheet (NS) vertical‐stacked complementary field‐effect transistors (CFETs), where the NS n‐FET and NS p‐FET are vertically stacked and controlled using a common gate, would result in maximum device footprint reduction. However, silicon‐based transistor will become invalid due to mobility degradation and leakage current rising when scaling the thickness of channel and dielectric. Here, it is experimentally demonstrated that CFET can scaling down to 1 nm channel thickness with excellent performance, where chemical vapor deposition (CVD) one layer (1L) WSe2 p‐type NS FET is vertically stacked on top of CVD 1L MoS2 n‐type NS FET. Bottom MoS2 NS FET achieves high on‐state current of ION = 3.3 × 10−5 A µm µm−1 and low off‐state current of IOFF = 3.3 × 10−13 A µm µm−1 at VDS = 0.7 V, with the subthreshold swing reaching 80 mV dec−1. Top WSe2 NS FET achieves high on‐state current of ION = 1.2 × 10−5 A µm µm−1 and IOFF = 4 × 10−11 A µm µm−1 at VDS = −0.7 V, while the subthreshold swing reaching 150 mV dec−1. Statistical data of 22 CFET devices demonstrate excellent uniformity toward large‐area applications. The CFET based on large‐scale 2D materials breaks the limit of channel scaling and provides a technological base for future high‐performance and low‐power electronics.

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Evolution of Polymer Melt Conformation and Entanglement under High-Rate Elongational Flow

Zhang,

Ma,

Ruan

et al. 2024

Chin J Polym Sci

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Polymer Translocation

Cited by 5 publications

References 124 publications

State Transitions and Crystalline Structures of Single Polyethylene Rings: MD Simulations

State Transitions and Crystalline Structures of Single Polyethylene Rings: MD Simulations

Large‐Scale Ultrathin Channel Nanosheet‐Stacked CFET Based on CVD 1L MoS₂/WSe₂

Evolution of Polymer Melt Conformation and Entanglement under High-Rate Elongational Flow

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Polymer Translocation

Cited by 5 publications

References 124 publications

State Transitions and Crystalline Structures of Single Polyethylene Rings: MD Simulations

State Transitions and Crystalline Structures of Single Polyethylene Rings: MD Simulations

Large‐Scale Ultrathin Channel Nanosheet‐Stacked CFET Based on CVD 1L MoS2/WSe2

Evolution of Polymer Melt Conformation and Entanglement under High-Rate Elongational Flow

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Product

Resources

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Large‐Scale Ultrathin Channel Nanosheet‐Stacked CFET Based on CVD 1L MoS₂/WSe₂