Translucent battery based on PLD growth inorganic CuGaO<2> transparent film

Abstract

The invention belongs to the technical field of semiconductor photoelectrons, and in particular relates to a translucent battery based on a PLD growth inorganic CuGaO<2> transparent film. A structureof the battery includes a first transparent electrode substrate, a hole transport layer, a perovskite light absorbing layer, an electron transport layer, and a second transparent electrode substrate in order from bottom to top, wherein the second transparent electrode substrate is specifically a conducting layer / light anti-reflection layer composite structure, and the conducting layer is ultra-thin metal Ag, Au or a silver nanowire; and a light anti-reflection layer is MoO<3> or MgF<2>, wherein except a perovskite layer is a translucent structure, and the other layers are transparent structures, thereby effectively improving the overall average transmittance of the battery, and good energy level match is formed between the layers, the overall series resistance of the battery is reduced, and the photoelectric conversion efficiency and stability of the battery are further improved. At the same time, the battery adopts a brand new transparent electrode and eliminates the deficiency of increasing scarcity of raw materials in a traditional transparent electrode ITO, and optimized performance and a stable structure of the battery provide a new idea for a commercial application of translucent perovskite solar cells.

Description

technical field

[0001] The invention belongs to the technical field of thin-film solar cell preparation, in particular to a PLD-based growth inorganic CuGaO 2 Translucent cells with transparent films. Background technique

[0002] With the continuous progress of human civilization and the rapid development of social economy, human demand for energy continues to grow. At the same time, fossil fuels such as oil, coal, and natural gas are non-renewable resources and have limited reserves. Therefore, research on new energy, especially solar energy, has become the focus of world attention. However, the high cost of silicon-based and thin-film solar cells, the low efficiency of organic solar cells, and the instability of dye-sensitized solar cells make the development prospects of solar cells not optimistic. Since the first report of perovskite solar cells in 2009, the energy conversion efficiency has improved rapidly, from the initial 3.8% to 23.3%. The emergence of perovskite...

Examples

Embodiment 1

[0014] (1) Cut the FTO transparent conductive glass into 1.5cm long strips, then paste a 1cm wide tape, and then etch with zinc powder and concentrated hydrochloric acid and dilute hydrochloric acid with a volume ratio of 1:5 for 15 minutes, then use dilute hydrochloric acid Clean the residual zinc powder, cut the etched glass into 1.5×1.5cm squares, ultrasonically clean with lye for 30-60min, then ultrasonically clean with alcohol for 30-60min, and finally clean with deionized water for 10-30min, then Put it into a drying oven to dry to obtain the first transparent electrode substrate (as shown in Figure 1, layer 1);

[0015] (2) Utilize PLD to deposit CuGaO on the surface of the above-mentioned first transparent electrode substrate 2 Nanoparticles, the frequency is 5HZ, the energy is 300mJ, and CuGaO is deposited on the surface 2 The first transparent electrode substrate of the hole transport film (as shown in Figure 1, 2 layers);

[0016] (3) Dissolve lead iodide and cesi...

Embodiment 2

[0020] (1) The present embodiment is the same as Example 1, except that step (4) dissolves PCBM in chlorobenzene and stirs for twelve hours to obtain the PCBM precursor solution, the concentration is 20mg / ml, and then spin-coats CsPbI 3 The substrate surface of the thin film is spin-coated with PCBM precursor solution at a speed of 2000 rpm / s for 30 s to obtain a substrate coated with a PCBM electron transport thin film (as shown in Figure 1 with 4 layers); use a vacuum thermal evaporation coater to vapor-deposit ultra-thin Ag Electrode, thickness 10nm, evaporation rate is As a conductive layer (as shown in Figure 1, 5 layers), the light anti-reflection layer MoO is finally evaporated with a vacuum thermal evaporation coater. 3 (6 layers as shown in Figure 1), the thickness is 40nm, and the evaporation rate is Complete the preparation of semi-transparent perovskite solar cells.

Embodiment 3

[0022] (1) the present embodiment is the same as embodiment 1, the difference is that step (5) FeCl 3 Dissolve in ethylene glycol solution (10ml), continue to add polyvinylpyrrolidone (PVP), then move the solution to a stirring heater to heat at 80-100°C, stir for 5min for later use; 3 Dissolve in ethylene glycol solution (10ml), take out 15-20ul and add it dropwise to the standby solution, when the solution turns brown, remove the remaining AgNO 3 The solution is mixed in, then the solution is moved to the reaction kettle at 150-200°C for 2-3 hours, and finally the solution is centrifuged and ultrasonicated to obtain the silver nanowire precursor solution, and the silver nanowire precursor solution is spin-coated with a homogenizer at a speed of 3000-7000r / min, the time is 30-50s to make silver nanowire transparent electrode (as shown in Figure 1, 5 layers); use vacuum thermal evaporation coating device to vapor-deposit light anti-reflection layer MoO 3 (6 layers as shown i...

technical field

[0001] The invention belongs to the technical field of thin-film solar cell preparation, in particular to a PLD-based growth inorganic CuGaO 2 Translucent cells with transparent films. Background technique

[0002] With the continuous progress of human civilization and the rapid development of social economy, human demand for energy continues to grow. At the same time, fossil fuels such as oil, coal, and natural gas are non-renewable resources and have limited reserves. Therefore, research on new energy, especially solar energy, has become the focus of world attention. However, the high cost of silicon-based and thin-film solar cells, the low efficiency of organic solar cells, and the instability of dye-sensitized solar cells make the development prospects of solar cells not optimistic. Since the first report of perovskite solar cells in 2009, the energy conversion efficiency has improved rapidly, from the initial 3.8% to 23.3%. The emergence of perovskite...

Examples

Embodiment 1

[0014] (1) Cut the FTO transparent conductive glass into 1.5cm long strips, then paste a 1cm wide tape, and then etch with zinc powder and concentrated hydrochloric acid and dilute hydrochloric acid with a volume ratio of 1:5 for 15 minutes, then use dilute hydrochloric acid Clean the residual zinc powder, cut the etched glass into 1.5×1.5cm squares, ultrasonically clean with lye for 30-60min, then ultrasonically clean with alcohol for 30-60min, and finally clean with deionized water for 10-30min, then Put it into a drying oven to dry to obtain the first transparent electrode substrate (as shown in Figure 1, layer 1);

[0015] (2) Utilize PLD to deposit CuGaO on the surface of the above-mentioned first transparent electrode substrate 2 Nanoparticles, the frequency is 5HZ, the energy is 300mJ, and CuGaO is deposited on the surface 2 The first transparent electrode substrate of the hole transport film (as shown in Figure 1, 2 layers);

[0016] (3) Dissolve lead iodide and cesi...

Embodiment 2

[0020] (1) The present embodiment is the same as Example 1, except that step (4) dissolves PCBM in chlorobenzene and stirs for twelve hours to obtain the PCBM precursor solution, the concentration is 20mg / ml, and then spin-coats CsPbI 3 The substrate surface of the thin film is spin-coated with PCBM precursor solution at a speed of 2000 rpm / s for 30 s to obtain a substrate coated with a PCBM electron transport thin film (as shown in Figure 1 with 4 layers); use a vacuum thermal evaporation coater to vapor-deposit ultra-thin Ag Electrode, thickness 10nm, evaporation rate is As a conductive layer (as shown in Figure 1, 5 layers), the light anti-reflection layer MoO is finally evaporated with a vacuum thermal evaporation coater. 3 (6 layers as shown in Figure 1), the thickness is 40nm, and the evaporation rate is Complete the preparation of semi-transparent perovskite solar cells.

Embodiment 3

[0022] (1) the present embodiment is the same as embodiment 1, the difference is that step (5) FeCl 3 Dissolve in ethylene glycol solution (10ml), continue to add polyvinylpyrrolidone (PVP), then move the solution to a stirring heater to heat at 80-100°C, stir for 5min for later use; 3 Dissolve in ethylene glycol solution (10ml), take out 15-20ul and add it dropwise to the standby solution, when the solution turns brown, remove the remaining AgNO 3 The solution is mixed in, then the solution is moved to the reaction kettle at 150-200°C for 2-3 hours, and finally the solution is centrifuged and ultrasonicated to obtain the silver nanowire precursor solution, and the silver nanowire precursor solution is spin-coated with a homogenizer at a speed of 3000-7000r / min, the time is 30-50s to make silver nanowire transparent electrode (as shown in Figure 1, 5 layers); use vacuum thermal evaporation coating device to vapor-deposit light anti-reflection layer MoO 3 (6 layers as shown i...

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