查了一下google的patent检索,
http://www.google.com/patents

这专利的Owner是中科院生物所。
为这种垃圾专利付宝贵的外汇(申请费用+每年的维持费,该专利用PCT同时申请了五个国家的专利),中科院对纳税人应该有个交代。

Abstract
A parallel plate diode comprising metal electrodes and semiconductor materials layer contacting said metal electrodes. Two thin plate electrodes made of metal are disposed in parallel, and there is a layer of thin plate semiconductor material sandwiched between the two thin plate electrodes, the concentration of the carriers in the semiconductor material layer is 20% or less than that of the electrons in the metal. One of the metal electrodes is made so as to have a plurality of recesses from its surface into the interior on the side that faces the semiconductor coat layer, the diameter of those recesses is less than 4 micrometers. These recesses are well-shape cavities and an array of the convex portions and concave portions are staggered each other. The cross section of the well shape is circular, square or rectangle. This diode output a current and a voltage in a closed loop circuit without bias voltage or bias current.

Patent number: 6768177
Filing date: Feb 28, 2002
Issue date: Jul 27, 2004
Inventors: Yelin Xu, Ling Jiang, Qiang Xu
Assignee: Institute of Biophysics, Chinese Academy of Sciences
Primary Examiner: Eddie Lee
Secondary Examiner: Douglas W. Owens
Attorneys: JDI Patent, Joshua D. Isenberg

Current U.S. Classification
257/367; 257/109

International Classification
H01L 2976