Miscibility Matching and Bimolecular Crystallilation Affording High-Performance Ternary Nonfullerene Solar Cells

doi:10.1021/acs.chemmater.9b03935

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Miscibility Matching and Bimolecular Crystallilation Affording High-Performance Ternary Nonfullerene Solar Cells
	Yi, N ; Ai, QY ; Zhou, WH ; Huang, LQ ; Zhang, LF ; Xing, Z ; Li, XY ; Zeng, JR ; Chen, YW
刊名	CHEMISTRY OF MATERIALS
	2019
卷号	31 期号:24 页码:10211-10224
关键词	ENHANCED PERFORMANCE POLYMER MORPHOLOGY FULLERENE CRYSTALLIZATION EFFICIENCY THERMODYNAMICS SENSITIZATION COMPATIBILITY BLENDS
ISSN号	0897-4756
DOI	10.1021/acs.chemmater.9b03935
文献子类	期刊论文
英文摘要	How the interaction between a third component and a donor/acceptor affects the crystallization and phase separation of the active layer remains to be explored from the perspective of miscibility. To demonstrate the miscibility matching in nonfullerene-based ternary organic solar cells, the poly[(4,4'-bis(2-butyloctoxycarbonyl-[2,2'bithiophene]-5,5-diyl)-alt-(2,2'-bithiophene-5,5'-diyl)] (PD CBT) and poly(3-hexylthiophene) (P3HT), showing similar chemical structures despite their dissimilar side chains, were selected as third components to incorporate into the poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1,2-b:4,5-bldithiophene))-alt-(5,5-(1',3'-di-2-thienyl-5',7'- bis(2-ethylhexyl)benzo[1',2'-c:4',5'-c'] dithiophene-4,8- dione) )] :3,9-bis (2-methylene- (3- ( 1,1 - di cyan omethyl ene )-indanone) -5,5, 11,11-tetrakis (4-hexylpheny1)- dithieno [2,3-d: 2',3 '-d']-s-indaceno [1,2-b:5,6-dithiophene (PBDB-T:ITIC) system. On the basis of the melting point depression method, the Flory-Huggins interaction parameters for PDCBT:PBDB-T(1:9) and P3HT:PBDB-T(1:9) blends were calculated to be-0.08 and -0.07, respectively, whereas the values are 0.99, 0.66, and 0.41 for PDCBT:ITIC, PBDB-T:ITIC, and P3HT:ITIC blends, respectively. PDCBT and P3HT tend to form bimolecular crystals with PBDB-T, as revealed by grazing incidence wide-angle X-ray scattering (GIWAXS). The more evident phase separation induced by poor miscibility between PDCBT and ITIC in addition to bimolecular crystallization between PDCBT and PBDB-T contributes to the obvious enhancement in power conversion efficiency (PCE) from 9.40% to 10.97%. Unfortunately, the miscibility mismatch and the change in charge transport upon the incorporation of P3HT into PBDB-T:ITIC results in the nonuniform P3HT distribution and energy level alignment, leading to a serious reduction in the PCE value. Miscibility matching in the selection of an appropriate third component should be a reasonable way to guide the fabrication of high-performance ternary organic solar cells.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32135]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Nanchang Univ, Sch Mat Sci & Engn, 999 Xuefu Ave, Nanchang 330031, Jiangxi, Peoples R China; 2.Nanchang Univ, IPEC, 999 Xuefu Ave, Nanchang 330031, Jiangxi, Peoples R China; 3.Jiangxi Normal Univ, IASR, 99 Ziyang Ave, Nanchang 330022, Jiangxi, Peoples R China; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Jialuo Rd, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Yi, N,Ai, QY,Zhou, WH,et al. Miscibility Matching and Bimolecular Crystallilation Affording High-Performance Ternary Nonfullerene Solar Cells[J]. CHEMISTRY OF MATERIALS,2019,31(24):10211-10224.
APA	Yi, N.,Ai, QY.,Zhou, WH.,Huang, LQ.,Zhang, LF.,...&Chen, YW.(2019).Miscibility Matching and Bimolecular Crystallilation Affording High-Performance Ternary Nonfullerene Solar Cells.CHEMISTRY OF MATERIALS,31(24),10211-10224.
MLA	Yi, N,et al."Miscibility Matching and Bimolecular Crystallilation Affording High-Performance Ternary Nonfullerene Solar Cells".CHEMISTRY OF MATERIALS 31.24(2019):10211-10224.