基于光开关[Ru(bpy)2OSO]PF6的高对比度高分辨率光致变色硅聚合物

58 浏览量更新于2024-08-29 收藏 588KB PDF 举报

"这篇科研文章探讨了一种基于光开关性的[Ru(bpy)2OSO]PF6单元的高对比度、高分辨率光致变色硅胶聚合物的合成方法，这种材料对于高密度全息数据存储和/或真实三维全息显示器具有重要意义。文章指出，将具有光诱导键异构化的配位复合物嵌入到聚二甲基硅氧烷（PDMS）矩阵中，特别是处理硫氧化合物中SO键的光诱导异构化，是一个尚未解决的任务。通过这种方法，可以在固态电介质环境中保持光谱特性，并且PDMS对分子的分布和性能产生影响。" 本文的核心在于开发新型的光致变色材料，特别是利用[Ru(bpy)2OSO]PF6作为基础构建块，这种材料能实现光诱导的链接异构化。光诱导链接异构化是分子光学材料中的一个关键机制，它允许材料在光照下改变其光学性质，这在全息数据存储和全息显示技术中至关重要。高对比度和高分辨率是这类材料的关键特性，因为它们直接影响数据存储的密度和图像的清晰度。作者Kristin Springfeld、Volker Dieckmann和Mirco Imlau来自德国奥尔登堡大学物理系，他们提出将光功能性的配位复合物集成到PDMS中，这是一种常见的有机硅聚合物。PDMS以其优良的机械性能、化学稳定性和光学透明性而被广泛使用，但它本身不具备光响应性。通过引入[Ru(bpy)2OSO]PF6，可以赋予PDMS光致变色的特性，同时保持其原有的优点。文章强调了在固态环境（如PDMS）中保持光谱特性的挑战，以及PDMS如何影响光诱导异构化过程中分子的分布和行为。这种材料设计策略可能为制造高性能的全息存储和显示设备提供新的途径，因为它们可以实现在光照下动态调整存储信息的能力，同时保持高清晰度和信息密度。通过实验和理论研究，研究人员旨在理解并优化这些光响应材料的性能，包括其在固态状态下的稳定性、响应速度以及可逆性。这不仅对于提高数据存储的可靠性和耐用性有重要意义，还可能开启全新的全息显示技术，为未来的多媒体和信息处理应用提供新的解决方案。

High-contrast, high-resolution photochromic

silicone polymer based on photoswitchable

[Ru(bpy)

OSO]PF

building blocks

Kristin Springfeld,* Volker Dieckmann, and Mirco Imlau

Department of Physics, Osnabrück University, Barbarastraße 7, 49076 Osnabrück, Germany

*Corresponding author: kspringf@uos.de

Received July 19, 2013; revised September 6, 2013; accepted September 7, 2013;

posted September 10, 2013 (Doc. ID 194127); published November 19, 2013

The implementation of photoinduced linkage isomerism in molecular-based optical materials represents a prom-

ising approach for the synthesis of high-contrast, high-resolution photosensitive materials that are necessary for

high-density (holographic) data storage and/or real-three-dimensional (holographic) displays. The unsolved task

of embedding a photofunctional coordination complex into a matrix like polymer polydimethylsiloxane (PDMS)

with photoinduced isomerism of a SO-bond in the sulfoxide compound Rubpy

OSOPF

is addressed. This

approach allows to preserve the spectral properties within the solid dielectric environment, with an impact of

PDMS on population and relaxation dynamics. All data are discussed in the framework of photofunctionality,

OCIS codes: (210.0210) Optical data storage; (090.2870) Holographic display; (090.2900) Optical storage

materials; (160.5335) Photosensitive materials; (160.5470) Polymers.

http://dx.doi.org/10.1364/PRJ.1.000197

1. INTRODUCTION

The combination of nanoscaled, photofunctional building

blocks to complex functional materials with macroscopic

effects represents a crucial step toward applications of the

next generation in nonlinear optics and photonics. A promi-

nent example is optical materials built from small photo-

switchable coordination compounds [

1]. The photo-physics

and -chemistry of the relevant molecular classes have been

studied comprehensively on the molecular level in recent dec-

ades. Their immense potential for the control of light by light

is ascribed to their intrinsic photofunctionality of photoin-

duced refractive-index changes on the molecular level, which

has been demonstrated as a general property of coordination

compounds featuring photoinduced linkage isomerism [

2].

Recording of dynamic, high-resolution Bragg gratings with

diffraction efficiencies of more than 90% in a 200 μm thick

sample was successfully demonstrated [

3], which exceeds

the properties of classical photorefractive materials by one

order of magnitude for the same thickness [

4]. Apparently,

a three-dimensional (3D) matrix of small photoswitchable

coordination compounds is the key for visionary applications

like real-time, three-dimensional holographic displays [

5]or

optical and holographic data storage [

6,7].

However, the combination of these molecules and bulky

media with appropriate macroscopic function (see, e.g., [8])

and optical quality is to be solved. The most prominent

state-of-the-art strategies are as follows: (i) Single crystal

growth from aqueous solutions [

9]. This enabled structural

analysis of photoinduced linkage isomerism by means of

x ray [

10] or neutron diffractometry [11] in photocrystallogra-

phy [

12,13]. (ii) Linkage of functional molecules to a polymeric

side [

14–17] with the obvious advantage of the huge density of

the compounds within the polymer [18]. (iii) Electrostatic

attachment to charged anchors (without losing the photofunc-

tionality [

19]). (iv) Embedding into a nanostructured matrix,

for instance into mesopores of xerogels [

20]. Further strategies

are required if the costs of chemical synthesis; the stability of

photofunctionality on the long term; and the synthesis of

homogeneous, bulky media with large dimensions, as well

as a sufficient transmission and low density of scattering

centers, must be considered for the case of applications.

In this contribution, we present photochromic silicone poly-

mers based on the coordination compound Rubpy

OSOPF

(OSO) from the class of ruthenium sulfoxides [21]. Its photo-

physics is characterized by a photoinduced linkage isomeriza-

tion from an S- to O-bonded Ru atom [

22]. Already, it has been

demonstrated with solutions of OSO in dichloromethane

(DCM) that these compounds facilitate the essential require-

ments such as high sensitivity, pronounced photorefractive

properties, and a high spatial resolution for use in the new

photonic devices [

8]. Here, solid-state materials of OSO were

prepared by embedding it into dielectric polydimethylsiloxane

(PDMS). PDMS offers a high transmission of T>80% in the

visible/NIR spectral range. Furthermore, it is temperature-

stable (−50°C <T <200°C), inexpensive, and nontoxic

and provides a high chemical stability. With these OSO com-

pounds embedded in PDMS, we first addressed the question

whether the solid dielectric environment has an impact on

the principle photofunctionality of the compounds. For this

purpose the steady-state and light-induced absorption were

measured and compared with the results obtained for OSO

in a DCM solution. Particularly the dynamics of both popula-

tion and thermal decay are affected significantly, while the

spectral fingerprints show only slight modifications. Second,

Springfeld et al. Vol. 1, No. 4 / December 2013 / Photon. Res. 197

下载后可阅读完整内容，剩余4页未读，立即下载

weixin_38694141

粉丝: 4
资源: 960

基于光开关[Ru(bpy)2OSO]PF6的高对比度高分辨率光致变色硅聚合物

Optical image operation based on holographic polarization multiplexing of fulgide film

Design of two-photon photochromic diarylethenes and application in 3D data storage

Broadband photochromic effect and photoluminescence modulation in rare-earth-doped (Pb,La)(Zr,Ti)O

Photochromic effect of HoPO4:Li+ powder

Disodium[hydroxotetranitronitrosyl]ruthenate(II), a Photochromic Substance with Long-lived Metastable States: Structure at 110[hairsp]K, Spectroscopic and Thermal Properties

java_springboot校内兼职信息管理系统_毕业论文.docx

com.harmonyosnext.exception.AIModelLoadingException.md

高校校园点餐系统.zip

基于SpringBoot + Vue的前后端分离电影售票及影院管理系统源码+数据库（Java毕业设计）

全球PCB用电解铜箔市场：7.83%的年复合增长率引领电子材料新时代

最新资源