Regioregular poly(3‐hexylthiophene‐2,5‐diyl) (P3HT) of 4002‐EE grade with four different molecular weights (25, 37, 46, 55 kDa) was purchased from Rieke Metals. [6,6]‐phenyl C71 butyric acid methyl ester (PC70BM) of purity >99% was purchased from Solenne. Bismuth oxide nanoparticles (Bi2O3) (with a β phase, tetragonal crystal structure; 38 nm diameter; surface area 18 m2 g−1) were purchased from Alfa Aesar. X‐ray detectors with different P3HT molecular weighs were fabricated by preparing the P3HT: PC70BM: Bi2O3 solution where 80 mg of each P3HT sample was mixed with 80 mg of PC70BM, 80 mg of Bi2O3 in 1 mL dichlorobenzene (DCB; 1 mL; anhydrous; Sigma‐Aldrich). The solution was stirred overnight followed by preheating at 60°C for 30 min before deposition of the films. The solution preparation was carried out in a N2 glove box (MBraun MB20G).
Pc70bm
Manufactured by Merck Group
Sourced in United States
PC70BM is a chemical compound used in the production of organic electronic devices. It is a fullerene derivative with the chemical formula C₇₀-PCBM. The primary function of PC70BM is as an electron acceptor material in organic photovoltaic cells and organic field-effect transistors.
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Lab products found in correlation
5 protocols using pc70bm
1
Fabrication of P3HT-PC70BM-Bi2O3 X-ray Detectors
2
PCDTBT:PC70BM Ink Preparation for Solar Cells
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For PCDTBT:PC70BM ink formation, 8 mg of PCDTBT (Ossila Ltd., Sheffield, UK) and 32 mg of PC70BM (Ossila Ltd., Sheffield, UK) were dissolved in 1 mL anhydrous dichlorobenzene (Sigma Aldrich, MO, USA). This PCDTBT:PC70BM is used for polymer solar cells. For perovskite solar cells, PC70BM solution was prepared by dissolving 50 mg of PC70BM into 1 mL anhydrous dichlorobenzene (Sigma Aldrich, MO, USA). Both solutions were then stirred at 60 °C for 1 h [17 (link)].
3
Perovskite Solar Cell Fabrication
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The solvents were provided by Sigma Aldrich, PTAA by Solaris (Mw = 20–70 kDa), PbI2 and PbBr2 by TCI America, FAI (FA = formamidinium) and MABr (MA = methylammonium) by GreatCell Solar, CsI and RbI by Sigma Aldrich, PC70BM (6,6-phenyl-C71-butyric acid methyl ester, hereafter simply referred to as PCBM) by Solenne, and bathocuproine (BCP) by Sigma Aldrich. All solvents and commercial reagents were used as received unless otherwise stated.
4
Synthesis and Characterization of Narrow Bandgap Polymer Solar Cells
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The synthesis of the polymer (poly(4
(CDT-TQ) was described in ref. 43 and the polymer belonged to a class of narrow bandgap donor-acceptor copolymers. 44 The acceptor [6,6]-phenyl-C71-butyric acid methyl ester (PC 70 BM) was purchased from Ossila Ltd. Camphoric acid anhydride (CA), which is used to increase the dielectric constant of the BHJ layer to enhance exciton dissociation, 43 was purchased from Sigma-Aldrich Ltd. The CDT-TQ, PC 70 BM, and CA were blended at 2 : 4 : 1 weight ratio dissolved in 1,2-dichlorobenzene at a concentration of 28 mg mL À1 . An additive 1,8-diiodooctane was added to the blend at a volume ratio of 3%. This BHJ blend solution was stirred at 70 1C for at least 24 hours. The solution for the CuSCN layer was prepared by dissolving CuSCN in diethyl sulfide at a concentration of 2 mg mL À1 . We have varied the concentration of the CuSCN solution from 1.5 to 2 mg mL À1 . It is found that 2 mg mL À1 is the lowest concentration for CuSCN processing. If the solution concentration is lower than 2 mg mL À1 , the sample showed non-uniform coverage of the film. The solution for electron-transporting SnO 2 was prepared by dissolving SnCl 2 ÁH 2 O in ethanol at concentration of 0.07 M, and the solution 45 was stirred in a water bath at 80 1C for 4 hours followed by 40 1C for another 4 hours.
(CDT-TQ) was described in ref. 43 and the polymer belonged to a class of narrow bandgap donor-acceptor copolymers. 44 The acceptor [6,6]-phenyl-C71-butyric acid methyl ester (PC 70 BM) was purchased from Ossila Ltd. Camphoric acid anhydride (CA), which is used to increase the dielectric constant of the BHJ layer to enhance exciton dissociation, 43 was purchased from Sigma-Aldrich Ltd. The CDT-TQ, PC 70 BM, and CA were blended at 2 : 4 : 1 weight ratio dissolved in 1,2-dichlorobenzene at a concentration of 28 mg mL À1 . An additive 1,8-diiodooctane was added to the blend at a volume ratio of 3%. This BHJ blend solution was stirred at 70 1C for at least 24 hours. The solution for the CuSCN layer was prepared by dissolving CuSCN in diethyl sulfide at a concentration of 2 mg mL À1 . We have varied the concentration of the CuSCN solution from 1.5 to 2 mg mL À1 . It is found that 2 mg mL À1 is the lowest concentration for CuSCN processing. If the solution concentration is lower than 2 mg mL À1 , the sample showed non-uniform coverage of the film. The solution for electron-transporting SnO 2 was prepared by dissolving SnCl 2 ÁH 2 O in ethanol at concentration of 0.07 M, and the solution 45 was stirred in a water bath at 80 1C for 4 hours followed by 40 1C for another 4 hours.
5
Fabrication of Organic Photovoltaic Device
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ITO-coated glass substrates (with a nominal sheet resistance of 15 ohm per square and a thickness of 120 nm) were purchased from PsiOTec Ltd. PEDOT:PSS FHC was acquired from Ossila Ltd, P3HT (melting point 238 °C, M w = 17 500 g mol -1 , 99.995% regio-regularity) and PC 70 BM (M w = 1031.0 g mol -1 ) were purchased from Sigma-Aldrich and Solenne BV, respectively. High-purity (99.99%) silver wire was obtained from Testbourne Ltd, and calcium pellets with high-purity (99.99%) were purchased from Kurt J. Lesker.
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