纳米材料与纳米技术是8O年代后期发展起来的新兴科学,也是当前国际材料科学研究的难点和热点。谢毅多年来一直从事纳米材料的化学制备、结构和物性的研究工作,她曾发展溶剂热合成制备纳米材料的技术,用苯热合成制成纳米GaN,文章发表在Science上,并受到审稿人的高度评价,认为“论文报道了两个激动人心的研究成果:在非常低的温度下苯热制备了结晶GaN;观察到以前只在超高压下才出现的 Nanomaterials and nanotechnology are emerging sciences developed in the late 1980s and are also the difficulties and hot spots in current international materials science research. Xie Yi has been engaged in the research of chemical preparation, structure and physical properties of nanomaterials for many years. She has developed the technology of solvothermal synthesis and preparation of nanomaterials and synthesized nanometer GaN with benzene thermal synthesis. The article was published in Science and subject to review People highly commented that "the paper reports two exciting findings: the formation of crystalline GaN at a very low temperature with benzene heat; the observation that previously only occurred under ultrahigh pressure