Study on Electronic Excited States and Their Relaxation Processes in Solid Surfaces and Interfaces.

1.利用光学方法研究了固体表面和界面中的电子激发态，这些方法既来自参与研究人员进行的个人专业研究工作，也来自他们工作的有效组合。本研究工作的目的是为上述研究项目的研究奠定基础和今后的指导原则。本文从理论和实验两个方面着重研究了以下几个重要问题。（1）半导体表面的表面激子和激子极化激元以及金属表面的表面等离子体激元的特性及其与各种表面现象的关系。（2）半导体（或金属）与吸附有机染料分子界面的电荷转移态及其与光敏化和表面增强拉曼散射的关系。（3）电子出口 ...更多信息 超导体超薄膜中的激发态及其弛豫过程。（4）半导体超微粒子中激子的量子尺寸效应和表面效应，以及粒子尺寸和界面存在对激子弛豫过程的影响。3.本研究工作的进展曾于1986年9月进行过一次审查，并作了进一步的发展。所得结果已在1988年1月举行的有37人参加的最后联合会议上提出。热烈而富有成效的辩论，建立了参与者之间的相互理解的项目，这项研究工作，也作出了贡献，为每个学科的发展。4.为了进一步发展本研究项目，在不久的将来，个人和合作研究工作是必不可少的，在这方面，许多专业研究人员可以联合起来。少

1.Electronic excited states in solid surfaces and interfaces have been studied with use of optical methods both from individual specialized research works performed by the participating investigators and from the efficient combination of their works. The objective of this research work is to make the basis and the future guiding principle for the studies on the above research project. Many valuable results are obtained and the necessity of the further progress in this field is emphasized.2.Following important subjects have been especially studied both from theoretical and experimental points of view. (1)Characteristics of surface excitons and exciton polaritons on semiconductor surfaces and surface plasmons on metal surfaces, and their relation with various surface phenomena. (2)Charge transfer states in the interfaces between semiconductor (or metal) and adsorbed organic dye molecules and their relations with photo-sensitization and surface enhanced Raman scattering. (3)Electronic exc … More ited states in ultra-thin films of semiconductots and their relaxation processes. (4)Quantum size effect and surface effect on excitons in semiconductor ultra-fine particles, and the effects of particle size and existence of interface on the relaxation processes of excitons.3.The progress of the research works was once examined in September, 1986, and further development has been performed. The obtained results have been presented in the final joined meeting held in January, 1988 with 37 participants. The enthusiastic and fruitful debates have established the mutual understanding among the participants on the project of this research work and also have given contribution to the development for each subject. At the same time many problems to be solved and policy and the guiding principle of further research works have been made clear.4.For further development of this research project, individual and co-operative research works, in which many specialized researchers in this field can join together, should be indispensable in very-near future. Less