Photoelectric conversion devices and their applications
A photoelectric conversion and device technology, which is applied in thermoelectric device components, thermoelectric device node lead-out materials, thermoelectric devices that only use the Peltier or Seebeck effect, etc., can solve problems such as high cost, unfavorable manufacturing, and complex structure. It achieves the effect of being conducive to large-scale production and manufacturing, low cost and simple structure
Active Publication Date: 2017-10-24
TSINGHUA UNIV +1
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Problems solved by technology
Therefore, the existing photoelectric conversion devices have complex structures and high costs, and are not conducive to improving energy conversion efficiency, nor are they conducive to large-scale production and manufacturing.
Method used
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[0028] The preparation method of the thermoelectric structure is as follows: the powdered Bi 2 Te 3 The thermoelectric material was compressed in a tablet press with a pressure of 20 MPa. The tablet press used in this example was 769YP-40C. After pressing, a cylindrical thermoelectric structure with a diameter of 16 mm and a thickness of 1 mm was obtained.
[0029]The combination method of the thermoelectric structure and the carbon nanotube layer 12 is as follows: the two surfaces of the thermoelectric structure perpendicular to the thickness direction are respectively defined as the heat absorption end and the voltage output end of the thermoelectric structure. The P-type thermoelectric structure 13 and the N-type thermoelectric structure 15 are arranged at intervals, and the interval distance can be set according to the actual situation, such as 2mm. On the heat-absorbing end 131 of the N-type thermoelectric structure and the heat-absorbing end 151 of the N-type thermoelec...
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A photoelectric conversion device and its application, comprising: a P-type thermoelectric structure and an N-type thermoelectric structure, used to convert thermal energy into electrical energy, the two thermoelectric structures are arranged at intervals, and each has a heat-absorbing end and an opposite end Voltage output terminal; a first electrode and a second electrode are used as a voltage output terminal, the first electrode is electrically connected to the voltage output terminal of the P-type thermoelectric structure, and the second electrode is connected to the voltage output terminal of the N-type thermoelectric structure The voltage output terminal is electrically connected; a carbon nanotube layer is used to absorb light energy and convert it into heat energy, and is arranged parallel to and directly in contact with the heat-absorbing end of the P-type thermoelectric structure and the heat-absorbing end of the N-type thermoelectric structure. The photoelectric conversion device provided by the invention has simple structure, low cost and high thermoelectric conversion efficiency.
Description
technical field [0001] The invention relates to a semiconductor device, in particular to a photoelectric conversion device. Background technique [0002] The energy problem is a major problem facing the development of contemporary human society, and people have developed many methods on how to obtain energy more effectively. Solar energy is the cleanest energy today, inexhaustible and inexhaustible. The solar energy received by the earth every 40 seconds is equivalent to the energy of 21 billion barrels of oil, which is equivalent to the sum of the energy consumed by the whole world in one day. Solar photovoltaic cells made using the photovoltaic effect of semiconductor materials are typical examples of solar energy utilization at present, but due to the complexity of the common solar photovoltaic cell manufacturing process, and the preparation of raw material silicon requires a large amount of electrical energy, this increases the cost of solar photovoltaic cells , and ca...
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IPC IPC(8): H01L35/10H01L35/16H01L35/32H10N10/82H10N10/17H10N10/817H10N10/852H10N10/853
CPCB82Y10/00H10N10/817H10N10/853H10N10/17
Inventor 刘长洪夏丹范守善
Owner TSINGHUA UNIV