Hagelstein, an associate professor of electrical engineering at MIT, says existing solid-state devices to convert heat into electricity are not very efficient.

哈格尔施泰因是麻省理工学院电子工程专业的副教授。他说，现有的固态装置在把热能转换成电能时的效率不高。

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State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University.

固体表面物理化学国家重点实验室， 化学化工学院化学系，厦门大学。

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State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University.

固体表面物理化学国家重点实验室， 化学化工学院化学系，厦门大学。

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