Energy transfer in single-molecule photonic wires.
Energy transfer in single-molecule photonic wires.
复制标题
单分子光子线中的能量转移。
作者：
M. Garcia;J. Hernando;Gabriel Sanchez Mosteiro;J. Hoogenboom;E. van Dijk;N. V. van Hulst
分子光子学是一个新兴的研究领域，其前提是有可能开发使用单分子作为构建块的光学器件。该领域真正的技术影响需要集中精力设计功能性分子器件，并在个体基础上获得其光子特性。在这篇综述中，我们讨论了用于分子光子线的一维多分子阵列的设计和单分子研究方法。已经探索了三种不同的方案：a)基于苝的二聚体和三聚体阵列在室温下显示相干激子离域；b)基于dna的单向分子线，包含多达五种不同的发色团，并在邻近染料之间表现出弱激子相互作用；c)基于苝多异氰酸酯的一维多色聚合物具有准分子发射。总的来说，我们的单分子数据显示了在室温下获得最佳激子行为的定义良好的发色团紧密包装的重要性。（生物）化学合成的进一步改进，加上单分子技术的使用，应该会在不久的将来导致具有真正设备功能的高效可靠的光子线。
Molecular photonics is a new emerging field of research around the premise that it is possible to develop optical devices using single molecules as building blocks. Truly technological impact in the field requires focussed efforts on designing functional molecular devices as well as having access to their photonic properties on an individual basis. In this Minireview we discuss our approach towards the design and single-molecule investigation of one-dimensional multimolecular arrays intended to work as molecular photonic wires. Three different schemes have been explored: a) perylene-based dimer and trimer arrays displaying coherent exciton delocalisation at room temperature; b) DNA-based unidirectional molecular wires containing up to five different chromophores and exhibiting weak excitonic interactions between neighbouring dyes; and c) one-dimensional multichromophoric polymers based on perylene polyisocyanides showing excimerlike emission. As a whole, our single-molecule data show the importance of well-defined close packing of chromophores for obtaining optimal excitonic behaviour at room temperature. Further improvement on (bio)chemical synthesis, together with the use of single-molecule techniques, should lead in the near future to efficient and reliable photonic wires with true device functionality.
DOI：
10.1073/pnas.96.7.3670
发表时间：
1999-03-30
影响因子：
11.1
作者：
Deniz, AA;Dahan, M;Schultz, PG
通讯作者：
Schultz, PG