ZnO-perovskite structure based ultraviolet-visible tunable photoelectric detector and preparation method thereof
A technology of perovskite structure and dimming, which is applied in photovoltaic power generation, electric solid-state devices, semiconductor/solid-state device manufacturing, etc., can solve the problems of not fully developing the high double carrier transport characteristics of perovskite and not reflecting the advantages of ZnO, etc. Achieve the effects of low cost of experimental raw materials, environmental friendliness, and simple production process
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Embodiment 1
[0038] Example 1: Preparation of unannealed detectors:
[0039] (1) Sonicate the FTO with deionized water, acetone, and alcohol for 15 minutes each, and then treat it with ultraviolet ozone for 30 minutes.
[0040] (2) The ZnO seed layer is spin-coated. Dissolve 1.5M zinc acetate solution in methanol solution and stir for 10 minutes, and spin-coat on FTO at a speed of 4000r / min for 20 seconds. Dry at 110°C for 10 minutes, and then transfer to a horse-boiling furnace for annealing for 2 hours.
[0041] (3) Preparation of ZnO nanorods: add 0.6g polyetherimide (PEI) to 150ml deionized water and stir, then add 50mmol / L zinc nitrate hexahydrate (Zn(NO 3 ) 2 ·6H 2 O) and 30mmol / L hexamethylenetetramine (C 6 h 12 N 4 ), fully stirred for 30 minutes, put the sample into the solution and reacted for 2 hours under the environment of 90 degrees. Blow dry the sample thoroughly after removing it from the solution.
[0042] (4) The synthesis method of the perovskite layer adopts th...
Embodiment 2
[0047] Embodiment 2: the preparation of the detector of vacuum annealing:
[0048] (1) Sonicate the FTO with deionized water, acetone, and alcohol for 15 minutes each, and then treat it with ultraviolet ozone for 30 minutes.
[0049] (2) The ZnO seed layer is spin-coated. Dissolve 1.5M zinc acetate solution in methanol solution and stir for 10 minutes, and spin-coat on FTO at a speed of 4000r / min for 20 seconds. Dry at 110°C for 10 minutes, and then transfer to a horse-boiling furnace for annealing for 2 hours.
[0050] (3) Preparation of ZnO nanorods: add 0.6g polyetherimide (PEI) to 150ml deionized water and stir, then add 50mmol / L zinc nitrate hexahydrate (Zn(NO 3 ) 2 ·6H 2 O) and 30mmol / L hexamethylenetetramine (C 6 h 12 N 4 ), fully stirred for 30 minutes, and the sample was placed in the solution and reacted for 2 hours at 90 degrees. Blow dry the sample thoroughly after removing it from the solution. The nanorods were annealed in a pulsed laser deposition (PLD)...
Embodiment 3
[0056] Embodiment 3: the preparation of the detector of air annealing:
[0057] (1) Sonicate the FTO with deionized water, acetone, and alcohol for 15 minutes each, and then treat it with ultraviolet ozone for 30 minutes.
[0058] (2) The ZnO seed layer is spin-coated. Dissolve 1.5M zinc acetate solution in methanol solution and stir for 10 minutes, and spin-coat on FTO at a speed of 4000r / min for 20 seconds. Dry at 110°C for 10 minutes, and then transfer to a horse-boiling furnace for annealing for 2 hours.
[0059] (3) Preparation of ZnO nanorods: add 0.6g polyetherimide (PEI) to 150ml deionized water and stir, then add 50mmol / L zinc nitrate hexahydrate (Zn(NO 3 ) 2 ·6H 2 O) and 30mmol / L hexamethylenetetramine (C 6 h 12 N 4 ), fully stirred for 30 minutes, put the sample into the solution and reacted for 2 hours under the environment of 90 degrees. Blow dry the sample thoroughly after removing it from the solution. Transfer to a horse boiling furnace for annealing a...
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