CN201302090Y - Dye-sensitized thin film solar cell lawn lamp - Google Patents

Abstract

Dye-sensitized thin-film solar cell lawn lamp, including dye-sensitized thin-film solar cell, dye-sensitized thin-film solar cell, lampshade, lamp barrel part and lawn lamp pole, dye-sensitized thin-film solar cell and photodiode are placed on the top of the lampshade, The battery, the control circuit and the light-emitting diode are connected to the battery, the control circuit and the light-emitting diode in the lamp barrel through wires; The top of the lampshade is the luminous surface. The utility model has lower cost, longer power generation time, more light-emitting surfaces and more beautiful designs.

Description

Dye-sensitized thin film solar cell lawn lamp

technical field

The utility model relates to a lawn lamp powered by solar energy, in particular to a lawn lamp powered by a dye-sensitized film solar battery. It belongs to the field of lighting lamps and lanterns, and also belongs to the field of new energy.

Background technique

Existing solar lawn lamps generally use silicon-based solar cells, including photovoltaic cells such as monocrystalline silicon, polycrystalline silicon and amorphous silicon, placed on the top of the lawn lamp shade, and the wires are connected to the rechargeable battery in the lamp shade. The control of light-emitting diodes or LEDs emits light at night. These lawn lamps have the following problems: 1. The price of silicon-based solar cells is limited by production costs and complex preparation processes, which increases the cost of solar lawn lamps. 2. There are many restrictions on the intensity of light. If the sun is not strong enough or the weather is cloudy and rainy, power generation cannot be performed, and the charging of lawn lamps is limited. 3. The silicon-based solar cells are opaque and located on the top of the lawn lamp, which reduces the light-emitting surface of the lawn lamp. 4. Silicon-based solar cells are all blue-black, there is no room for choice in color, and the aesthetics is not enough.

教授将高比表面积的纳米多孔TiO₂膜应用于染料敏化太阳电池上，光电转换效率到达7.1％。这种染料敏化纳米薄膜太阳电池的实验室光电转换效率接近商业化的非晶硅太阳电池，被业界称为

电池，成为发展一种低价、高效太阳电池的重要新方向。1993年，等人再次报道了光电转换效率达10％的染料敏化太阳电池，到1997年，其光电转换效率达到了10％～11％。1997年研制的black dye比N3染料的吸收光谱范围向红外区拓宽了100nm。1998年，

等人采用固体有机空穴传输材料替代液体电解质的全固态染料敏化太阳电池研制成功，其单色光转换效率达到33％，从而引起了全世界的关注。该薄膜电池结构为：导电玻璃，吸附染料的半导体工作电极，电解液，助触媒材料，导电玻璃。本实用新型将染料敏化薄膜太阳电池和草坪灯结合到了一起。The most attractive feature of Dye-sensitized Solar Cell (DSSC) is its cheap raw materials and relatively simple manufacturing process, and its stable performance and low attenuation, which has great application prospects. 1991 Swiss

The professor applied the nanoporous _TiO2 film with high specific surface area to dye-sensitized solar cells, and the photoelectric conversion efficiency reached 7.1%. The laboratory photoelectric conversion efficiency of this dye-sensitized nano-thin film solar cell is close to the commercial amorphous silicon solar cell, which is called "

Battery has become an important new direction to develop a low-cost, high-efficiency solar battery. 1993, et al again reported a dye-sensitized solar cell with a photoelectric conversion efficiency of 10%. By 1997, its photoelectric conversion efficiency had reached 10% to 11%. The black dye developed in 1997 has a wider absorption spectrum range of 100nm to the infrared region than N3 dye. 1998,

et al. successfully developed an all-solid-state dye-sensitized solar cell using solid organic hole transport materials instead of liquid electrolytes, and its monochromatic light conversion efficiency reached 33%, which attracted worldwide attention. The structure of the thin film battery is: conductive glass, semiconductor working electrode for absorbing dye, electrolyte solution, catalyst-promoting material and conductive glass. The utility model combines the dye-sensitized thin film solar cell and the lawn lamp together.

Utility model content

The purpose of this utility model is to provide a solar lawn with lower cost, less limited by sunlight conditions, better working condition and more beautiful appearance in view of the above-mentioned problems existing in the existing solar lawn lamps. lamp.

The utility model adopts the following technical solutions: dye-sensitized thin-film solar cell lawn lamp, including dye-sensitized thin-film solar cell, dye-sensitized thin-film solar cell, lampshade, lamp barrel part and lawn lamp pole, dye-sensitized thin-film solar cell The photosensitive diode is placed on the top of the lampshade, and is connected to the battery, control circuit and light-emitting diode in the lamp barrel through wires; the light-emitting diode (light source) is placed in the lamp barrel; the battery and control circuit are closely attached to the inner wall of the lampshade, so that the light can Unhindered upward through dye-sensitized solar cells for lighting, compared with silicon-based battery lawn lights, there is more light-emitting surface at the top; the lower part of the lamp barrel is equipped with a light pole, which is used to insert on the lawn to support the lawn light.

The beneficial effects of the utility model are: due to the use of dye-sensitized thin-film solar cells, the new solar lawn lamp has the following advantages: lower cost, longer power generation time, more light-emitting surfaces, and more beautiful designs.

Description of drawings

Figure 1 is the overall schematic diagram of the dye-sensitized thin film solar cell lawn lamp

1 dye-sensitized thin film solar cell, 2 lampshade, 3 lamp barrel part, 4 lawn light pole

Detailed ways

Below in conjunction with embodiment the utility model is further described: (1 among the accompanying drawing 1; lampshade, see (2) among the accompanying drawing 1; The dye-sensitized thin film solar cell and photosensitive diode are placed on the lampshade top, are connected to storage battery by lead , control circuit and light-emitting diode; the light-emitting diode is placed in the lamp barrel; the battery and the control circuit are closely attached to the inner wall of the lampshade, so that the light can pass through the dye-sensitized solar cell for lighting without hindrance. Compared with the silicon-based battery lawn lamp, There is an additional light-emitting surface on the top; the lamp barrel, see 3 in attached drawing 1; an insertion rod, used to insert on the lawn to support the lawn lamp, see 4 in attached drawing 1; the working electrode on the lawn lamp shade is printed as Dye-sensitized thin-film solar cells for patterns and characters, and photodiodes (to control the opening and closing of lights).

Build dye-sensitized thin-film solar cells: Dye-sensitized thin-film solar cells have the characteristics of low material cost and simple manufacturing process, which can reduce the cost of solar lawn lamps;

The solar cell itself also has the characteristics of weak light response, and it can still generate electricity in the absence of direct sunlight and general haze weather, and at the same time charge the battery of the lawn lamp;

By controlling the nanoparticle size of the dye-sensitized thin film working electrode semiconductor materials TiO ₂ and ZnO, the dye-sensitized thin film solar cell can be made translucent and still maintain good performance; rationally arrange the position of the battery and the control circuit, and stick to the inner wall of the lampshade , can realize the increase of the top lighting surface of the solar lawn lamp.

The dyes used in dye-sensitized thin film solar cells can be selected in a variety of colors, which is greatly improved in appearance compared with the single color of silicon-based cells;

The dye-sensitized thin-film solar cell production process uses printing technology, so that the working electrode of the solar cell can be printed into various patterns and characters, which can meet the requirements of high-end enterprises and group users to display luminous signs or characters on lawn lamps.

The solar cell part on the top of the lawn lamp can be transparent, increasing the lighting surface of the solar lawn lamp. At the same time, the solar lawn lamp realizes the colorful display on the top. The pattern and text prepared by the dye-sensitized thin film solar cell working electrode printing process are applied in solar lawn lamps.

Claims (2)

1. Dye-sensitized thin-film solar cell lawn lamp, characterized by including dye-sensitized thin-film solar cell, dye-sensitized thin-film solar cell, lampshade, lamp barrel part and lawn lamp pole, dye-sensitized thin-film solar cell and photodiode Placed on the top of the lampshade and connected to the battery, control circuit and light-emitting diodes in the lamp barrel through wires; the battery and the control circuit are closely attached to the lower part of the lamp barrel on the inner wall of the lampshade. A light pole is arranged. 2. The lawn lamp with dye-sensitized thin film solar cell according to claim 1, characterized in that the top of the lampshade is a light-emitting surface.

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