Critical factors governing vertical phase separation in polymer–PCBM blend films for organic solar cells

Literature Information

Publication Date 2016-09-16
DOI 10.1039/C6TA06508B
Impact Factor 12.732
Authors

Min Kim, Jaewon Lee, Sae Byeok Jo, Dong Hun Sin, Hyomin Ko, Hansol Lee, Seung Goo Lee, Kilwon Cho


View Original

Abstract

In organic bulk-heterojunction solar cells, the vertical distribution of the composition of the active layers as well as the lateral morphology is one of the critical issues that can significantly affect charge transport and recombination characteristics. Here we studied the critical parameters that can affect the formation of vertically stratified bulk heterojunction organic solar cells based on various polymers with different side chains, and investigated the effect of the miscibility of the polymer–fullerene blend and the crystallinity of the polymer on vertical morphology. The major factor that affected the vertical phase separation was the interaction parameter χ between the polymer and phenyl-C61-butyric acid methyl ester (PCBM). Polymer–PCBM blends with high values of χ tended to trigger surface-directed vertical phase separation during rapid solvent evaporation. However, strong aggregation of polymers with low solubility counteracted this surface-directed vertical stratification. Moreover, solvent additives strongly affected the vertical phase separation processes, and caused the composition of the active layer to fluctuate dramatically. We also found the photovoltaic characteristics, including charge recombination time, to be strongly affected by the vertical distribution of the composition. The modulation of the composition in the vertical direction should therefore be optimized to increase the efficiency of charge collection and hence achieve high-efficiency organic solar cells.

Related Literature

Littordials A–E, novel formyl-phloroglucinol-β-caryophyllene meroterpenoids from the leaves of Psidium littorale

Jian Xu, Hui-Lin Zhu, Jie Zhang, Wen-Yuan Liu, Jian-Guang Luo, Ke Pan, Wen-Yuan Cao, Qi-Rui Bi

2019-03-26 Research Article

DOI: 10.1039/C9QO00174C

Direct synthesis of hydrazones by visible light mediated aerobic oxidative cleavage of the CC bond

Ya Ding, Hao Li, Yunge Meng, Te Zhang, Jiawen Li, Qiu-Yun Chen

2017-05-15 Research Article

DOI: 10.1039/C7QO00276A

Catalyst-controlled selective mono-/dialkylation of 2-aryl-4(3H)-quinazolinones

Yi Luo, Hua He, Jianglian Li, Xinling Yu, Mei Guan, Yong Wu

2019-05-08 Research Article

DOI: 10.1039/C9QO00496C

Bifunctional Brønsted base catalyzed inverse-electron-demand aza-Diels–Alder reactions of saccharin-derived 1-azadienes with azlactones

Xiao-Rui Ren, Jun-Bing Lin, Xiu-Qin Hu, Peng-Fei Xu

2019-05-09 Research Article

DOI: 10.1039/C9QO00357F

Contents list

Front/Back Matter

DOI: 10.1039/C9QO90058F

An unexpected reaction of aryldiazonium tetrafluoroborates, sodium metabisulfite, and thiourea under photoinduced conditions

Xiaofang Li, Wenlin Xie, Shengqing Ye

2019-04-11 Research Article

DOI: 10.1039/C9QO00410F

Front cover

Cover

DOI: 10.1039/C9QO90052G

Highly soluble C2v-symmetrical fullerene derivatives: efficient synthesis, characterization, and electrochemical study

Kouya Uchiyama, Hiroshi Ueno, Hiroshi Okada, Hiroshi Moriyama

2019-02-05 Research Article

DOI: 10.1039/C9QO00056A

Organoiodine reagent-promoted intermolecular oxidative amination: synthesis of cyclopropyl spirooxindoles

Zhiguo Zhang, Yongchao Zhang, Guoqing Huang, Guisheng Zhang

2017-04-18 Research Article

DOI: 10.1039/C7QO00156H

You might also like

Compound Q&A

Are there alternatives to 1-(4-Chlorophenyl)-N-hydroxymethanimine (CAS: 3848-36-0) in synthesis?

When considering alternatives to 1-(4-Chlorophenyl)-N-hydroxymethanimine (CAS: 3...

3848-36-01-(4-Chlorophenyl)-N...
Compound Q&A

How is 3-(4-Bromophenyl)-5-(2-fluorophenyl)-1,2,4-oxadiazole (CAS: 419553-16-5) typically synthesized?

3-(4-Bromophenyl)-5-(2-fluorophenyl)-1,2,4-oxadiazole is synthesized through a m...

419553-16-53-(4-Bromophenyl)-5-...
Compound Q&A

How is 5-Chloro-2-(4-chlorophenyl)-4-methyl-6-[3-(1-piperidinyl)propoxy]pyrimidine (CAS: 1639220-19-1) typically synthesized?

5-Chloro-2-(4-chlorophenyl)-4-methyl-6-[3-(1-piperidinyl)propoxy]pyrimidine (CAS...

1639220-19-15-Chloro-2-(4-chloro...
Compound Q&A

What industries use 2-Chloro-4-(difluoromethoxy)pyridine (CAS: 1206978-15-5)?

2-Chloro-4-(difluoromethoxy)pyridine is used in the pharmaceutical industry for ...

1206978-15-52-Chloro-4-(difluoro...
Compound Q&A

What regulatory guidelines apply to 3-Chloro-6-methylpyridazine (CAS: 1121-79-5)?

3-Chloro-6-methylpyridazine (CAS: 1121-79-5) is classified under the Globally Ha...

1121-79-53-Chloro-6-methylpyr...
Compound Q&A

Are there alternatives to Methyl 4,5-dimethyl-2-nitrobenzoate in synthesis?

Several alternatives can be used in the synthesis of Methyl 4,5-dimethyl-2-nitro...

90922-74-0Methyl 4,5-dimethyl-...
Compound Q&A

Are there alternatives to (2E,2'E)-3,3'-(1,4-Phenylene)bisacrylaldehyde in synthesis?

Alternatives to (2E,2'E)-3,3'-(1,4-Phenylene)bisacrylaldehyde include other acry...

63405-68-5(2E,2'E)-3,3'-(1,4-P...
Compound Q&A

What is 3-Amino-5-chloropyridin-2-ol hydrochloride (CAS: 1261906-29-9)?

3-Amino-5-chloropyridin-2-ol hydrochloride is an organic compound with the CAS n...

1261906-29-93-Amino-5-chloropyri...
Compound Q&A

What precautions should be taken when handling 6,7-Difluoro-2,3-dihydro-4H-chromen-4-one (CAS: 1092349-93-3)?

When handling 6,7-Difluoro-2,3-dihydro-4H-chromen-4-one, it is essential to wear...

1092349-93-36,7-Difluoro-2,3-dih...

Source Journal

Journal of Materials Chemistry A

Journal of Materials Chemistry A
CiteScore: 19.5
Self-citation Rate: 4.7%
Articles per Year: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.