Acentric 2-D Ensembles of D-br-A Electron-Transfer Chromophores via Vectorial Orientation within Amphiphilic n-Helix Bundle Peptides for Photovoltaic Device Applications

Jaseung Koo; †; ∥ Jaehong Park; †; ‡ Andrey Tronin; † Ruili Zhang; † Venkata Krishnan; †; ⊥ Joseph Strzalka; § Ivan Kuzmenko; § H. Christopher Fry; †; # Michael J. Therien; ‡ and J. Kent Blasie; †

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Acentric 2-D Ensembles of D-br-A Electron-Transfer Chromophores via Vectorial Orientation within Amphiphilic n-Helix Bundle Peptides for Photovoltaic Device Applications

机译：通过两亲性n螺旋束肽中矢量定向的D-br-A电子转移发色团的2-D集成体，用于光伏器件应用

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We show that simply designed amphiphilic 4-helix bundlenpeptides can be utilized to vectorially orient a linearly extended donor−nbridge−acceptor (D-br-A) electron transfer (ET) chromophore within its core.nThe bundle’s interior is shown to provide a unique solvation environment for thenD-br-A assembly not accessible in conventional solvents and thereby control thenmagnitudes of both light-induced ET and thermal charge recombination ratenconstants. The amphiphilicity of the bundle’s exterior was employed tonvectorially orient the peptide−chromophore complex at a liquid−gas interface,nand its ends were tailored for subsequent covalent attachment to an inorganicnsurface, via a “directed assembly” approach. Structural data, combined with evaluation of the excited state dynamics exhibited bynthese peptide−chromophore complexes, demonstrate that densely packed, acentrically ordered 2-D monolayer ensembles ofnsuch complexes at high in-plane chromophore densities approaching 1/200 Å2 offer unique potential as active layers in binarynheterojunction photovoltaic devices.

机译：我们展示了简单设计的两亲性4螺旋bundlenpeptide可用于向量定向其核心内线性延伸的供体-nbridge-受体（D-br-A）电子转移（ET）生色团.n束的内部显示提供了独特的D-br-A组装的溶剂化环境在常规溶剂中无法获得，从而控制了光诱导的ET和热电荷重组率的大小。束外表面的两亲性是通过将肽-发色团复合物在液-气界面上沿矢量方向取向使用的，并且其末端经过了调整，以通过“定向组装”方法随后共价连接至无机表面。结构数据与对这些肽-发色团配合物表现出的激发态动力学的评估相结合，证明在高平面生色团密度接近1/200Å2时，此类配合物的密集堆积，中心排列的二维单层团簇具有作为活性层的独特潜力在二元异质结光伏器件中。

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《Langmuir》 |2012年第6期|3227-3238|共12页
作者
Jaseung Koo; †; ∥ Jaehong Park; †; ‡ Andrey Tronin; † Ruili Zhang; † Venkata Krishnan; †; ⊥ Joseph Strzalka; § Ivan Kuzmenko; § H. Christopher Fry; †; # Michael J. Therien; ‡ and J. Kent Blasie; †;
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†Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104 United States‡Department of Chemistry Duke University Durham North Carolina 27708 United States§X-ray Science Division Argonne National Laboratory Argonne Illinois 60439 United States;

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1. Acentric 2-D ensembles of D-br-A electron-transfer chromophores via vectorial orientation within amphiphilic n -helix bundle peptides for photovoltaic device applications [J] . Koo J., Park J., Tronin A., Langmuir: The ACS Journal of Surfaces and Colloids . 2012,第6期

机译：D-br-A电子转移发色团通过矢量取向在两亲性n-螺旋束肽中的无心2-D团簇，用于光伏器件应用
2. Control of the Orientational Order and Nonlinear Optical Response of the 'Push-Pull' Chromophore RuPZn via Specific Incorporation into Densely Packed Monolayer Ensembles of an Amphiphilic Four-Helix Bundle Peptide:Characterization of the Peptide-Chromophore Complexes [J] . Venkata Krishnan, Andrey Tronin, Joseph Strzalka, Journal of the American Chemical Society . 2010,第32期

机译：通过特异性结合到两亲四螺旋束肽的密集堆积单层组件中来控制“推挽”发色团RuPZn的取向顺序和非线性光学响应：肽-发色团络合物的表征
3. Control of the Orientational Order and Nonlinear Optical Response of the “Push-Pull” Chromophore RuPZn via Specific Incorporation into Densely Packed Monolayer Ensembles of an Amphiphilic Four-Helix Bundle Peptide: Characterization of the Peptide−Chromophore Complexes [J] . Venkata Krishnan Journal of the American Chemical Society . 2010,第32期

机译：通过特异性掺入两亲四螺旋束肽的密集堆积单分子膜中来控制“推挽”发色团RuPZn的取向顺序和非线性光学响应：肽-发色团复合物的表征
4. Acentric 2-D Ensembles of D-br-A Electron-Transfer Chromophores via Vectorial Orientation within Amphiphilic n-Helix Bundle Peptides for Photovoltaic Device Applications [O] . Jaseung Koo, Jaehong Park, Andrey Tronin, -1

机译：通过矢量方向d-BR-a电子转移生色团的偏心2- d合奏内的两亲性正螺旋束多肽光伏器件应用
5. Structure and Dynamics of an Extended Conjugated NLO Chromophore within an Amphiphilic 4-Helix Bundle Peptide by Molecular Dynamics Simulation [O] . -1

机译：分子动力学模拟两亲4螺旋束肽内扩展共轭NLO发色团的结构和动力学

Acentric 2-D Ensembles of D-br-A Electron-Transfer Chromophores via Vectorial Orientation within Amphiphilic n-Helix Bundle Peptides for Photovoltaic Device Applications

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