WO2019045272A1 - 보디피 기반의 공중합체 및 이를 포함하는 태양전지 - Google Patents
보디피 기반의 공중합체 및 이를 포함하는 태양전지 Download PDFInfo
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- WO2019045272A1 WO2019045272A1 PCT/KR2018/008212 KR2018008212W WO2019045272A1 WO 2019045272 A1 WO2019045272 A1 WO 2019045272A1 KR 2018008212 W KR2018008212 W KR 2018008212W WO 2019045272 A1 WO2019045272 A1 WO 2019045272A1
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Definitions
- the present invention relates to a copolymer based on a bipiper, a method for producing the copolymer, a solar cell including the copolymer, and a method for producing the solar cell.
- Solar cell technology is a technology to convert sunlight directly into electric energy.
- Most of the solar cells that are put into practical use are inorganic solar cells using inorganic materials such as silicon.
- the inorganic solar cell has a disadvantage in that the manufacturing cost is increased due to the complicated manufacturing process and the material is expensive. Accordingly, studies on an organic solar cell having a low manufacturing cost and a low material cost through a relatively simple manufacturing process have been actively conducted.
- Perovskite solar cells are attracting attention because they are cost-effective, relatively easy to manufacture, and exhibit excellent photovoltaic characteristics.
- perovskite solar cells without Hole Transporting Materials (HTM) exhibit lower charge extraction and charge recombination at the interface than perovskite solar cells containing hole transport materials, Voltage and charge rate. Therefore, in order to exhibit higher power conversion efficiency (PCE), charge extraction must be increased and undesired charge recombination at the interface must be mitigated.
- PCE power conversion efficiency
- the role of hole transport materials in perovskite solar cells is important.
- an object of the present invention is to provide a novel hole transporting material, i.e., a novel copolymer based on a bipiper, and a novel hole transporting material for providing a solar cell having high efficiency and high stability, And a method for producing the same.
- a copolymer represented by the following formula (1) is provided.
- R1 and R1 ' are each a linear or branched C 4 to C 30 alkyl, alkenyl or alkynyl group,
- R 2 is a C 1 to C 20 linear or branched alkyl group substituted or unsubstituted with halogen or a C 2 to C 20 linear or branched alkenyl or alkynyl group,
- Each of R 3 to R 6 is a C 1 to C 20 linear or branched alkyl group, or a C 2 to C 20 linear or branched alkenyl group or alkynyl group,
- X 1 and X 2 are each a halogen
- the number n of repeating units in the repeating unit is 2 to 50,
- the number average molecular weight (Mn) is 1400 to 60,000.
- R1 and R1 ' are each a linear or branched C 4 to C 30 alkyl, alkenyl or alkynyl group,
- R 2 is a C 1 to C 20 linear or branched alkyl group substituted or unsubstituted with halogen or a C 2 to C 20 linear or branched alkenyl or alkynyl group,
- Each of R 3 to R 6 is a C 1 to C 20 linear or branched alkyl group, or a C 2 to C 20 linear or branched alkenyl group or alkynyl group,
- M is an organotin compound or an organoboron compound
- X 1 , X 2 and X 3 are each a halogen
- the number of repeating units n of repeating units is 2 to 50,
- the number average molecular weight (Mn) is 1400 to 60,000.
- a photovoltaic cell comprising the copolymer represented by the general formula (1).
- composition for a hole transport layer of a solar cell which comprises the copolymer represented by the above formula (1).
- the copolymer according to the present invention By applying the copolymer according to the present invention to a hole transporting layer, device characteristics such as charge mobility and power conversion efficiency can be greatly improved, and a solar cell in which the characteristics are maintained for a long time can be provided.
- Figure 1 shows UV-VIS absorption spectra for the copolymers prepared according to Examples 1 to 6.
- Fig. 2 shows electrochemical analysis results of the copolymers prepared according to Examples 1 to 6.
- Figure 3 shows the energy level matching results for the copolymers prepared according to Examples 1 to 6 and the copolymer of Comparative Example 1.
- FIG. 4 shows the J-V curves of the solar cells manufactured according to Production Examples 1 to 3, 5 and 6.
- FIG. 4 shows the J-V curves of the solar cells manufactured according to Production Examples 1 to 3, 5 and 6.
- Fig. 5 shows the external quantum efficiency of the solar cell manufactured according to Production Examples 1, 3, 5 and 6.
- Figs. 6 to 9 show the stability test results of the solar cell produced according to Production Example 1 and Comparative Production Example 1. Fig.
- FIG. 10 is a schematic diagram of a solar cell manufactured according to Production Example 1.
- FIG. 10 is a schematic diagram of a solar cell manufactured according to Production Example 1.
- Fig. 11 shows the J-V curve of the solar cell produced according to Production Example 1 and Comparative Production Example 1.
- the present invention relates to a copolymer represented by the following general formula (1).
- R1 and R1 ' are each a linear or branched C 4 to C 30 alkyl, alkenyl or alkynyl group,
- R 2 is a C 1 to C 20 linear or branched alkyl group substituted or unsubstituted with halogen or a C 2 to C 20 linear or branched alkenyl or alkynyl group,
- Each of R 3 to R 6 is a C 1 to C 20 linear or branched alkyl group, or a C 2 to C 20 linear or branched alkenyl group or alkynyl group,
- X 1 and X 2 are each a halogen
- the number n of repeating units in the repeating unit is 2 to 50,
- the number average molecular weight (Mn) is 1400 to 60,000.
- the number average molecular weight may have units of g / mol.
- R1 and R1 ' are each C 8 to may be a branched alkyl group of C 24, wherein R1 and R1' may be an each a 2-ethylhexyl group, 2-hexyl silde group or a 2-decyl tetradecyl group, whereby It is not limited. R1 and R1 'may be the same.
- R2 may be an unsubstituted methyl group, a halogen-substituted methyl group or an undecyl group, and R2 may be an unsubstituted methyl group, but is not limited thereto.
- R 1 and R 1 ' are each a 2-ethylhexyl group, and R 2 may be a methyl group, but is not limited thereto.
- Each of R 3 to R 6 may be C 1 to C 10 alkyl, preferably C 1 to C 3 alkyl. Each of R 3 to R 6 may be the same or different and is preferably the same as each other, but is not limited thereto.
- X 1 and X 2 may be the same as or different from each other and are preferably fluorine (F), but are not limited thereto.
- the present invention also relates to a process for producing a copolymer by polymerizing a compound represented by the following general formula (2) and a compound represented by the following general formula (3) to produce a copolymer represented by the following general formula (1).
- R1 and R1 ' are each a linear or branched C 4 to C 30 alkyl, alkenyl or alkynyl group,
- R 2 is a C 1 to C 20 linear or branched alkyl group substituted or unsubstituted with halogen or a C 2 to C 20 linear or branched alkenyl or alkynyl group,
- Each of R 3 to R 6 is a C 1 to C 20 linear or branched alkyl group, or a C 2 to C 20 linear or branched alkenyl group or alkynyl group,
- M is an organotin compound or an organoboron compound
- X 1 , X 2 and X 3 are each a halogen
- the number of repeating units n of repeating units is 2 to 50,
- the number average molecular weight (Mn) is 1400 to 60,000.
- the method for producing the copolymer is characterized in that the compound represented by the formula (2) and the compound represented by the formula (3) are subjected to a Suzuki reaction, a YAMAMOTO reaction, a STILLE reaction, a HECK reaction, ), A SONOGASHIRA reaction, a HIYAMA reaction or a HARTWIG-BUCHWALD reaction, preferably by a Suzuki reaction or a Stille reaction, It is not limited.
- the M may be an organic tin compound or an organic boron compound that can be used in the reaction, but it may be SnMe 3 or bis (pinacolato) diboron.
- the compound represented by the general formula (3) is a compound of the body picnic series.
- the compound of the body picofix system is a substance showing strong absorption in the UV / VIS region.
- R1 and R1 ' are each C 8 to may be a branched alkyl group of C 24, wherein R1 and R1' may be an each a 2-ethylhexyl group, 2-hexyl silde group or a 2-decyl tetradecyl group, whereby It is not limited. R1 and R1 'may be the same.
- R2 may be an unsubstituted methyl group, a halogen-substituted methyl group or an undecyl group, and R2 may be an unsubstituted methyl group, but is not limited thereto.
- R 1 and R 1 ' are each a 2-ethylhexyl group, and R 2 may be a methyl group, but is not limited thereto.
- Each of R 3 to R 6 may be C 1 to C 10 alkyl, preferably C 1 to C 3 alkyl. Each of R 3 to R 6 may be the same or different and is preferably the same as each other, but is not limited thereto.
- X 1 and X 2 may be the same as or different from each other and are preferably fluorine (F), but are not limited thereto.
- X 3 is preferably chlorine (Cl), but is not limited thereto.
- the present invention also relates to a solar cell comprising a copolymer represented by the following formula (1).
- R1 and R1 ' are each a linear or branched C 4 to C 30 alkyl, alkenyl or alkynyl group,
- R 2 is a C 1 to C 20 linear or branched alkyl group substituted or unsubstituted with halogen or a C 2 to C 20 linear or branched alkenyl or alkynyl group,
- Each of R 3 to R 6 is a C 1 to C 20 linear or branched alkyl group, or a C 2 to C 20 linear or branched alkenyl group or alkynyl group,
- X 1 and X 2 are each a halogen
- the number n of repeating units in the repeating unit is 2 to 50,
- the number average molecular weight (Mn) is 1400 to 60,000.
- R1 and R1 ' are each C 8 to may be a branched alkyl group of C 24, wherein R1 and R1' may be an each a 2-ethylhexyl group, 2-hexyl silde group or a 2-decyl tetradecyl group, whereby It is not limited. R1 and R1 'may be the same.
- R2 may be an unsubstituted methyl group, a halogen-substituted methyl group or an undecyl group, and R2 may be an unsubstituted methyl group, but is not limited thereto.
- R 1 and R 1 ' are each a 2-ethylhexyl group, and R 2 may be a methyl group, but is not limited thereto.
- Each of R 3 to R 6 may be C 1 to C 10 alkyl, preferably C 1 to C 3 alkyl. Each of R 3 to R 6 may be the same or different and is preferably the same as each other, but is not limited thereto.
- X 1 and X 2 may be the same as or different from each other and are preferably fluorine (F), but are not limited thereto.
- the solar cell may be a perovskite solar cell.
- the description of the solar cell of the present invention will be described below with respect to a perovskite solar cell, but the scope of the present invention is not limited thereto.
- the solar cell of the present invention comprises a first electrode, a light absorbing layer formed on the first electrode, a hole transporting layer formed on the light absorbing layer, and a second electrode formed on the hole transporting layer, And may include a copolymer to be displayed.
- the first electrode may be fluorine tin oxide (FTO), indium tin oxide (ITO), ZnO-Ga 2 O 3 , ZnO-Al 2 O 3 , tin oxide, zinc oxide and the like, preferably fluorine tin oxide Oxide.
- FTO fluorine tin oxide
- ITO indium tin oxide
- ZnO-Ga 2 O 3 ZnO-Al 2 O 3
- tin oxide zinc oxide and the like, preferably fluorine tin oxide Oxide.
- the light absorption layer may include a metal oxide and a compound having a perovskite structure.
- the perovskite-structured compound may be CH 3 NH 3 PbI 3-x Cl x (a real number of 0 ? X ? 3 ), CH 3 NH 3 PbI 3-x Cl x (a real number of 0? 3 NH 3 PbI 3-x Cl x (real number 0 ? X ? 3 ), CH 3 NH 3 PbI 3-x Br x (real number 0 ? X ? 3 ), CH 3 NH 3 PbCl 3-x Br x 0 ⁇ x ⁇ 3 a real number), and CH 3 NH 3 PbI 3-x F x (0 ⁇ x ⁇ 3 a real number), but may include at least one selected from, but not limited thereto.
- the metal oxide may be an oxide of at least one metal selected from titanium, aluminum, tin, zinc, tungsten, zirconium, gallium, indium, yttrium, niobium, tantalum, and vanadium, but is not limited thereto.
- the solar cell may further include a substrate on the side opposite to the side where the first electrode contacts the light absorbing layer, and the substrate may be a glass substrate, a conductive transparent substrate, or a plastic substrate, but is not limited thereto.
- the second electrode may be Ag, Au, Pt, Ni, Cu, In, Ru, Pd, Rh, Ir, Os, C, or a conductive polymer.
- the solar cell according to the present invention may have a P value represented by the following formula (1) within the range of 0.8 or more and less than 1.
- PCE 10 is the power conversion efficiency measured on the tenth day after the solar cell is manufactured
- PCE o is the initial power conversion efficiency measured when the solar cell is manufactured.
- the PCE can be measured by a general measurement method used for solar cells.
- the present invention also relates to a composition for a hole transport layer of a solar cell, which comprises a copolymer represented by the following formula (1).
- R1 and R1 ' are each a linear or branched C 4 to C 30 alkyl, alkenyl or alkynyl group,
- R 2 is a C 1 to C 20 linear or branched alkyl group substituted or unsubstituted with halogen or a C 2 to C 20 linear or branched alkenyl or alkynyl group,
- Each of R 3 to R 6 is a C 1 to C 20 linear or branched alkyl group, or a C 2 to C 20 linear or branched alkenyl group or alkynyl group,
- X 1 and X 2 are each a halogen
- the number n of repeating units in the repeating unit is 2 to 50,
- the number average molecular weight (Mn) is 1400 to 60,000.
- R1 and R1 ' are each C 8 to may be a branched alkyl group of C 24, wherein R1 and R1' may be an each a 2-ethylhexyl group, 2-hexyl silde group or a 2-decyl tetradecyl group, whereby It is not limited. R1 and R1 'may be the same.
- R2 may be an unsubstituted methyl group, a halogen-substituted methyl group or an undecyl group, and R2 may be an unsubstituted methyl group, but is not limited thereto.
- R 1 and R 1 ' are each a 2-ethylhexyl group, and R 2 may be a methyl group, but is not limited thereto.
- Each of R 3 to R 6 may be C 1 to C 10 alkyl, preferably C 1 to C 3 alkyl. Each of R 3 to R 6 may be the same or different and is preferably the same as each other, but is not limited thereto.
- X 1 and X 2 may be the same as or different from each other and are preferably fluorine (F), but are not limited thereto.
- copolymers according to Examples 2 and 4 to 6 were prepared in the same manner as in Example 1 except for the differences (starting material, catalyst, ligand and reaction time) shown in Tables 1 and 2 below.
- Mn, Mw and PDI of the copolymers prepared in Examples 1 to 6 are shown in Table 4 below.
- PEDOT PSS CLEVIOS P VP AI 408 (manufactured by Heraeus) was used.
- the ITO glass substrate was cleaned using detergent, acetone, and IPA (isopropyl alcohol). Thereafter, the ITO glass substrate was surface-treated with UV-ozone, and a solution prepared by dissolving the copolymer prepared in Example 1 in 0.25 wt% of chlorobenzene was spin-coated at 5000 rpm for 20 seconds. After the spin-coating, the film was heat-treated at 80 DEG C for 10 minutes to form a thin hole transporting layer having a thickness of about 10 nm.
- PFN poly [(9,9-bis (3 '- (N, N- dimethylamino) propyl) -2,7- dioctylfluorene solution was spin-coated at 5000 rpm for 20 seconds to form a PFN layer.
- PCBM phenyl-C61-butyric acid methyl ester
- a solar cell was prepared in the same manner as in Production Example 1 except that the copolymers prepared in Examples 2 to 6 were used in place of the copolymers prepared in Example 1, respectively.
- a solar cell was produced in the same manner as in Production Example 1, except that PEDOT: PSS of Comparative Example 1 was used instead of the copolymer of Example 1.
- the film was spin-coated on a cleaned glass substrate at 1200 rpm for 20 seconds using a solution prepared by dissolving the copolymer prepared in Examples 1 to 6 in chloroform at a concentration of 3 mg / ml.
- the film was then heat-treated at 100 ° C for 10 minutes Respectively.
- the UV-VIS absorption spectrum after the heat treatment was measured, and the results are shown in FIG.
- the UV-VIS absorption spectrum was measured using a Perkin Elmer Lambda 750.
- the copolymers prepared in Examples 1 to 6 were subjected to electrochemical analysis to obtain the oxidation potential and the onset of oxidation potential, and the results are shown in FIG.
- the highest occupied molecular orbital (HOMO) was calculated from the oxidation initiation potential.
- the bandgap obtained from the UV-VIS spectrum obtained in Experimental Example 1 and the HOMO obtained from the electrochemical analysis according to Experimental Example 2 are shown in numerals.
- the HOMO value was -5.29 eV
- the band gap value was 1.96 eV
- the lowest unoccupied molecular orbital (LUMO) value was -3.33 eV.
- the photovoltaic parameters measured for the solar cells prepared according to Production Examples 1 to 3, 5 and 6 and Comparative Production Example 1 are shown in the following Table 3, and in accordance with Production Examples 1 to 3, 5 and 6
- the J (current density) -V (voltage) curve of the manufactured solar cell is shown in FIG.
- the J-V curve of the solar cell produced according to Production Example 1 and Comparative Production Example 1 is shown in Fig.
- JV curves were obtained by scanning each manufactured solar cell with a Keithley 236 Source Measure Unit (SMU) at an output of 100 mW / cm 2 with an air mass (AM) of 1.5 G and a current density of 100 mV / s .
- SMU Source Measure Unit
- FF Frill Factor
- the external quantum efficiency (%, the efficiency value at which photons converted to particles having a charge for the light of wavelength in the visible light region) was measured for the solar cell manufactured by Production Examples 1, 3, 5 and 6, Is shown in Fig.
- the solar cell spectral response / QE / EQE measurement system (manufactured by PV Measurements, Inc.) was used to measure external quantum efficiency.
- the solar cell manufactured according to Comparative Production Example 1 rapidly decreased in PCE with time, and dropped to 40% of the initial PCE after 10 days.
- the solar cell produced according to Production Example 1 maintained an initial PCE of 80% even after 10 days. From these results, it can be seen that the solar cell produced according to Production Example 1 is superior in stability to the solar cell produced according to Comparative Production Example 1.
- the novel copolymer according to the present invention not only exhibits excellent power conversion efficiency, but also exhibits high stability.
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Abstract
Description
Claims (20)
- 하기 화학식 1로 표시되는 공중합체:[화학식 1]상기 화학식 1에서,R1 및 R1'은 각각 C4 내지 C30의 직쇄형 또는 분지형 알킬기, 알켄일기 또는 알킨일기이고,R2는 할로겐으로 치환되거나 비치환된 C1 내지 C20의 직쇄형 또는 분지형 알킬기, 또는 C2 내지 C20의 직쇄형 또는 분지형 알켄일기 또는 알킨일기이며,R3 내지 R6은 각각 C1 내지 C20의 직쇄형 또는 분지형 알킬기, 또는 C2 내지 C20의 직쇄형 또는 분지형 알켄일기 또는 알킨일기이고,X1 및 X2는 각각 할로겐이며,반복 단위의 반복수 n은 2 내지 50이고,수평균분자량(Mn)은 1400 내지 60000이다.
- 제 1 항에 있어서,상기 R1 및 R1'은 각각 C8 내지 C24의 분지형 알킬기인 것을 특징으로 하는, 공중합체.
- 제 1 항에 있어서,상기 R1 및 R1'은 각각 2-에틸헥실기, 2-헥실데실기 또는 2-데실테트라데실기인 것을 특징으로 하는, 공중합체.
- 제 1 항에 있어서,상기 R1 및 R1'은 동일한 것을 특징으로 하는, 공중합체.
- 제 1 항에 있어서,상기 R2는 비치환된 메틸기, 할로겐으로 치환된 메틸기 또는 운데실(undecyl)기인 것을 특징으로 하는, 공중합체.
- 제 1 항에 있어서,상기 R1 및 R1'은 각각 2-에틸헥실기이고, 상기 R2는 메틸기인 것을 특징으로 하는, 공중합체.
- 하기 화학식 2로 표시되는 화합물 및 하기 화학식 3으로 표시되는 화합물을 중합하여 하기 화학식 1로 표시되는 공중합체를 제조하는, 공중합체의 제조방법:[화학식 1][화학식 2][화학식 3]상기 식에서,R1 및 R1'은 각각 C4 내지 C30의 직쇄형 또는 분지형 알킬기, 알켄일기 또는 알킨일기이고,R2는 할로겐으로 치환되거나 비치환된 C1 내지 C20의 직쇄형 또는 분지형 알킬기, 또는 C2 내지 C20의 직쇄형 또는 분지형 알켄일기 또는 알킨일기이며,R3 내지 R6은 각각 C1 내지 C20의 직쇄형 또는 분지형 알킬기, 또는 C2 내지 C20의 직쇄형 또는 분지형 알켄일기 또는 알킨일기이고,M은 유기 주석(organotin) 화합물 또는 유기 보론(organoboron) 화합물이며,X1, X2 및 X3은 각각 할로겐이고,반복 단위의 반복수 n은 2 내지 50이며,수평균분자량(Mn)은 1400 내지 60000이다.
- 제 7 항에 있어서,상기 공중합체의 제조방법이,상기 화학식 2로 표시되는 화합물 및 화학식 3으로 표시되는 화합물이 스즈키(Suzuki) 반응 또는 스틸리(Stille) 반응에 의해 중합되는 것을 특징으로 하는, 공중합체의 제조방법.
- 하기 화학식 1로 표시되는 공중합체를 포함하는 태양전지:[화학식 1]상기 화학식 1에서,R1 및 R1'은 각각 C4 내지 C30의 직쇄형 또는 분지형 알킬기, 알켄일기 또는 알킨일기이고,R2는 할로겐으로 치환되거나 비치환된 C1 내지 C20의 직쇄형 또는 분지형 알킬기, 또는 C2 내지 C20의 직쇄형 또는 분지형 알켄일기 또는 알킨일기이며,R3 내지 R6은 각각 C1 내지 C20의 직쇄형 또는 분지형 알킬기, 또는 C2 내지 C20의 직쇄형 또는 분지형 알켄일기 또는 알킨일기이고,X1 및 X2는 각각 할로겐이며,반복 단위의 반복수 n은 2 내지 50이고,수평균분자량(Mn)은 1400 내지 60000이다.
- 제 9 항에 있어서,상기 태양전지는 페로브스카이트 태양전지인 것을 특징으로 하는, 태양전지.
- 제 9 항에 있어서,상기 태양전지는,제 1 전극;상기 제 1 전극 상에 형성된 광흡수층;상기 광흡수층 상에 형성된 정공수송층; 및상기 정공수송층 상에 형성된 제 2 전극을 포함하고,상기 정공수송층은 상기 공중합체를 포함하는, 태양전지.
- 제 11 항에 있어서,상기 광흡수층이 금속산화물 및 페로브스카이트(perovskite) 구조의 화합물을 포함하는 것을 특징으로 하는, 태양전지.
- 제 12 항에 있어서,상기 페로브스카이트 구조의 화합물은 CH3NH3PbI3-xClx(0≤x≤3인 실수), CH3NH3PbI3-xClx(0≤x≤3인 실수), H3NH3PbI3-xClx(0≤x≤3인 실수), CH3NH3PbI3-xBrx(0≤x≤3인 실수), CH3NH3PbCl3-xBrx(0≤x≤3인 실수) 및 CH3NH3PbI3-xFx(0≤x≤3인 실수) 중에서 선택된 1종 이상을 포함하는 것을 특징으로 하는, 태양전지.
- 제 12 항에 있어서,상기 금속산화물이 티탄, 알루미늄, 주석, 아연, 텅스텐, 지르코늄, 갈륨, 인듐, 이트륨, 니오브, 탄탈 및 바나듐 중에서 선택된 1종 이상의 금속의 산화물인 것을 특징으로 하는, 태양전지.
- 제 9 항에 있어서,하기 수학식 1로 표시되는 P값이 0.8 이상 1 미만의 범위 내에 있는 것을 특징으로 하는, 태양전지:[수학식 1]P=PCE10/PCEo상기 수학식 1에서, PCE10은 태양전지 제조 후 10일째에 측정한 전력변환효율이고, PCEo은 태양전지 제조 시 측정한 초기 전력변환효율이다.
- 하기 화학식 1로 표시되는 공중합체를 포함하는, 태양전지의 정공수송층용 조성물:[화학식 1]상기 화학식 1에서,R1 및 R1'은 각각 C4 내지 C30의 직쇄형 또는 분지형 알킬기, 알켄일기 또는 알킨일기이고,R2는 할로겐으로 치환되거나 비치환된 C1 내지 C20의 직쇄형 또는 분지형 알킬기, 또는 C2 내지 C20의 직쇄형 또는 분지형 알켄일기 또는 알킨일기이며,R3 내지 R6은 각각 C1 내지 C20의 직쇄형 또는 분지형 알킬기, 또는 C2 내지 C20의 직쇄형 또는 분지형 알켄일기 또는 알킨일기이고,X1 및 X2는 각각 할로겐이며,반복 단위의 반복수 n은 2 내지 50이고,수평균분자량(Mn)은 1400 내지 60000이다.
- 제 16 항에 있어서,상기 R1 및 R1'은 각각 C8 내지 C24의 분지형 알킬기인 것을 특징으로 하는 조성물.
- 제 16 항에 있어서,상기 R1 및 R1'은 각각 2-에틸헥실기, 2-헥실데실기 또는 2-데실테트라데실기인 것을 특징으로 하는, 조성물.
- 제 16 항에 있어서,상기 R2는 비치환된 메틸기, 할로겐으로 치환된 메틸기 또는 운데실기인 것을 특징으로 하는, 조성물.
- 제 16 항에 있어서,상기 R1 및 R1'은 각각 2-에틸헥실기이고, 상기 R2는 메틸기인 것을 특징으로 하는, 조성물.
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| KR101688222B1 (ko) | 2015-06-29 | 2016-12-22 | 한국기계연구원 | 태양전지용 정공수송층 조성물, 이의 제조방법 및 이를 포함하는 태양전지 |
| JP6530360B2 (ja) * | 2016-09-23 | 2019-06-12 | 株式会社東芝 | 光電変換素子 |
| CN106905354B (zh) | 2017-02-28 | 2018-11-27 | 东莞理工学院 | 一种基于乙炔基桥联的D-π-A-π-D型BODIPY类衍生物及其制备方法 |
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2017
- 2017-08-31 KR KR1020170111262A patent/KR101938363B1/ko active Active
-
2018
- 2018-07-20 WO PCT/KR2018/008212 patent/WO2019045272A1/ko not_active Ceased
- 2018-07-20 US US16/643,726 patent/US11217398B2/en active Active
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| KR20080112280A (ko) * | 2006-04-12 | 2008-12-24 | 소니 가부시끼가이샤 | 기능 디바이스 및 그 제조 방법 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US11217398B2 (en) | 2022-01-04 |
| US20200219664A1 (en) | 2020-07-09 |
| KR101938363B1 (ko) | 2019-01-14 |
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