Oligomer small-molecule solar cell based on fluorinated condensed ring electron acceptor and preparation method thereof
A technology of solar cells and electron acceptors, which is applied in the field of solar cells, can solve the problems of improving oligomer small molecules and inapplicability, and achieve the effects of shortening charge generation and dissociation time, improving efficiency, and improving efficiency
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Embodiment 1
[0045] The substrate composed of a transparent substrate layer and a transparent conductive electrode ITO with a surface roughness less than 1nm is ultrasonically cleaned with cleaning solution, deionized water, acetone and isopropanol, and dried with nitrogen after cleaning; the substrate is placed in ozone After being treated in the cleaning machine for 20min, the hole transport layer material PEDOT:PSS was spin-coated in air (4000rpm, 20s, film thickness 35nm), followed by thermal annealing in air (150°C, 10min), and then the sample was introduced into In a glove box full of nitrogen, an active layer (DRCN5T:IDIC-4F=4:6, 20mg / ml, 2000rpm, 30s, film thickness 100nm) was prepared by spin coating on the PEDOT:PSS hole transport layer, and the obtained The active layer film was thermally annealed in a glove box (120°C, 10min); then the electron transport layer DPO was spin-coated on the active layer (2000rpm, 20s, film thickness 8nm), and then the Ag electrode was evaporated on ...
Embodiment 2
[0047] The substrate composed of a transparent substrate layer and a transparent conductive electrode ITO with a surface roughness less than 1nm is ultrasonically cleaned with cleaning solution, deionized water, acetone and isopropanol, and dried with nitrogen after cleaning; the substrate is placed in ozone After being treated in the cleaning machine for 20min, the hole transport layer material PEDOT:PSS was spin-coated in air (4000rpm, 20s, film thickness 35nm), followed by thermal annealing in air (150°C, 10min), and then the sample was introduced into In a glove box full of nitrogen, an active layer (DRCN5T:IDIC-4F=5:5, 20mg / ml, 2000rpm, 30s, film thickness 100nm) was prepared by spin coating on the PEDOT:PSS hole transport layer, and the obtained The active layer film was thermally annealed in a glove box (120°C, 10min); then the electron transport layer DPO was spin-coated on the active layer (2000rpm, 20s, film thickness 8nm), and then the Ag electrode was evaporated on ...
Embodiment 3
[0049] The substrate composed of a transparent substrate layer and a transparent conductive electrode ITO with a surface roughness less than 1nm is ultrasonically cleaned with cleaning solution, deionized water, acetone and isopropanol, and dried with nitrogen after cleaning; the substrate is placed in ozone After being treated in the cleaning machine for 20min, the hole transport layer material PEDOT:PSS was spin-coated in air (4000rpm, 20s, film thickness 35nm), followed by thermal annealing in air (150°C, 10min), and then the sample was introduced into In a glove box filled with nitrogen, an active layer (DRCN5T:IDIC-4F=6:4, 20mg / ml, 2000rpm, 30s, film thickness 100nm) was prepared on the PEDOT:PSS hole transport layer by spin coating, and the obtained The active layer film was thermally annealed (120°C, 10min) in a glove box; then the electron transport layer DPO (2000rpm, 20s, film thickness 8nm) was spin-coated on the active layer, and then the Ag electrode was evaporated...
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Abstract
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