High‐Performance All‐Polymer Solar Cells Enabled by n‐Type Polymers with an Ultranarrow Bandgap Down to 1.28 eV DOI
Kui Feng, Jiachen Huang, Xianhe Zhang

et al.

Advanced Materials, Journal Year: 2020, Volume and Issue: 32(30)

Published: June 9, 2020

Compared to organic solar cells based on narrow-bandgap nonfullerene small-molecule acceptors, the performance of all-polymer (all-PSCs) lags much behind due lack high-performance n-type polymers, which should have low-aligned frontier molecular orbital levels and narrow bandgap with broad intense absorption extended near-infrared region. Herein, two novel polymer DCNBT-TPC DCNBT-TPIC, are synthesized ultranarrow bandgaps (ultra-NBG) 1.38 1.28 eV, respectively. When applied in transistors, both polymers show efficient charge transport a highest electron mobility 1.72 cm2 V-1 s-1 obtained for DCNBT-TPC. Blended donor, PBDTTT-E-T, resultant all-PSCs DCNBT-TPIC achieve remarkable power conversion efficiencies (PCEs) 9.26% 10.22% short-circuit currents up 19.44 22.52 mA cm-2 , This is first example that PCE over 10% can be achieved using ultra-NBG acceptors photoresponse reaching 950 nm all-PSCs. These results demonstrate line also available as highly promising class maximizing device

Language: Английский

High-Performance n-Type Polymer Semiconductors: Applications, Recent Development, and Challenges DOI Creative Commons
Huiliang Sun, Xugang Guo, Antonio Facchetti

et al.

Chem, Journal Year: 2020, Volume and Issue: 6(6), P. 1310 - 1326

Published: June 1, 2020

Language: Английский

Citations

307
High Efficiency (15.8%) All-Polymer Solar Cells Enabled by a Regioregular Narrow Bandgap Polymer Acceptor DOI
Huiting Fu, Yuxiang Li, Jianwei Yu

et al.

Journal of the American Chemical Society, Journal Year: 2021, Volume and Issue: 143(7), P. 2665 - 2670

Published: Feb. 10, 2021

Despite the significant progresses made in all-polymer solar cells (all-PSCs) recently, relatively low short-circuit current density (Jsc) and large energy loss are still quite difficult to overcome for further development. To address these challenges, we developed a new class of narrow-bandgap polymer acceptors incorporating benzotriazole (BTz)-core fused-ring segment, named PZT series. Compared commonly used benzothiadiazole (BT)-containing PYT, less electron-deficient BTz renders derivatives with significantly red-shifted optical absorption up-shifted levels, leading simultaneously improved Jsc open-circuit voltage resultant all-PSCs. More importantly, regioregular (PZT-γ) has been achieve higher regiospecificity avoiding formation isomers during polymerization. Benefiting from more extended absorption, better backbone ordering, optimal blend morphology donor component, PZT-γ-based all-PSCs exhibit record-high power conversion efficiency 15.8% greatly enhanced 24.7 mA/cm2 0.51 eV.

Language: Английский

Citations

289
Low-Bandgap Non-fullerene Acceptors Enabling High-Performance Organic Solar Cells DOI
Wei Liu, Xiang Xu, Jun Yuan

et al.

ACS Energy Letters, Journal Year: 2021, Volume and Issue: 6(2), P. 598 - 608

Published: Jan. 21, 2021

Great progress in organic solar cells (OSCs) has been recently achieved owing to the advent of non-fullerene acceptors (NFAs). Indeed, low-bandgap NFAs ranging from 1.3 1.6 eV with broad absorption and easily tunable energy levels can utilize more radiation maintain a small voltage loss when paired suitable donors. Efficient OSCs are dependent on good compatibility between donor acceptor materials, active layer morphology control, device engineering. In this review, we summarize some design synthesis strategies for NFAs, achieving low bandgap high power conversion efficiency. We also propose solutions toward innovative materials engineering advance development applications OSCs.

Language: Английский

Citations

214
Polymerized small molecular acceptor based all-polymer solar cells with an efficiency of 16.16% via tuning polymer blend morphology by molecular design DOI Creative Commons
Jiaqi Du, Ke Hu, Jinyuan Zhang

et al.

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Sept. 6, 2021

Abstract All-polymer solar cells (all-PSCs) based on polymerized small molecular acceptors (PSMAs) have made significant progress recently. Here, we synthesize two A-DA’D-A molecule acceptor PSMAs of PS-Se with benzo[c][1,2,5]thiadiazole A’-core and PN-Se benzotriazole A’-core, for the studies effect structure photovoltaic performance PSMAs. The possess broad absorption showing more red-shifted than suitable electronic energy levels application as polymer in all-PSCs PBDB-T donor. Cryogenic transmission electron microscopy visualizes aggregation behavior donor PSMA their solutions. In addition, a bicontinuous-interpenetrating network PBDB-T:PN-Se blend film size 10~20 nm is clearly observed by photoinduced force microscopy. desirable morphology active layer leads its all-PSC higher power conversion efficiency 16.16%.

Language: Английский

Citations

214
Progress and prospects of the morphology of non-fullerene acceptor based high-efficiency organic solar cells DOI
Lei Zhu, Ming Zhang, Wenkai Zhong

et al.

Energy & Environmental Science, Journal Year: 2021, Volume and Issue: 14(8), P. 4341 - 4357

Published: Jan. 1, 2021

This review summarizes the important morphological characteristics and recent research progress of non-fullerene acceptor based organic solar cells, as well provides insights perspectives on this topic.

Language: Английский

Citations

212
Eco-Friendly Polymer Solar Cells: Advances in Green-Solvent Processing and Material Design DOI
Seungjin Lee, Da-Hyun Jeong, Changkyun Kim

et al.

ACS Nano, Journal Year: 2020, Volume and Issue: 14(11), P. 14493 - 14527

Published: Oct. 26, 2020

Despite the recent breakthroughs of polymer solar cells (PSCs) exhibiting a power conversion efficiency over 17%, toxic and hazardous organic solvents such as chloroform chlorobenzene are still commonly used in their fabrication, which impedes practical application PSCs. Thus, development eco-friendly processing methods suitable for industrial-scale production is now considered an imperative research focus. This Review provides roadmap design efficient photoactive materials that compatible with non-halogenated green (e.g., xylenes, toluene, tetrahydrofuran). We summarize to match non-fullerene cells. further review progress use more (i.e., water or alcohol) achieving truly sustainable PSC fabrication. For example, concept water- alcohol-dispersed nanoparticles made conjugated introduced. Also, important strategies develop water/alcohol-soluble completely eliminate conventional discussed. Finally, we provide our perspectives on challenges facing current materials, large-area coating techniques long-term stability. believe this will inform PSCs clean renewable energy sources.

Language: Английский

Citations

201
Over 14% efficiency all-polymer solar cells enabled by a low bandgap polymer acceptor with low energy loss and efficient charge separation DOI Creative Commons
Qunping Fan, Qiaoshi An, Yuanbao Lin

et al.

Energy & Environmental Science, Journal Year: 2020, Volume and Issue: 13(12), P. 5017 - 5027

Published: Jan. 1, 2020

A low bandgap polymer acceptor PF5-Y5 was synthesized and its all-PSCs achieved an impressive device efficiency of 14.45% with both high Voc Jsc due to the excellent absorption coverage, small energy loss, efficient charge separation.

Language: Английский

Citations

188
Highly efficient non-fullerene organic solar cells enabled by a delayed processing method using a non-halogenated solvent DOI
Xiaopeng Xu, Liyang Yu, He Yan

et al.

Energy & Environmental Science, Journal Year: 2020, Volume and Issue: 13(11), P. 4381 - 4388

Published: Jan. 1, 2020

A delayed processing method is demonstrated successfully to optimize the morphology of PM6:BTP-BO-4Cl, boosting PCE up 17.33%.

Language: Английский

Citations

176
Emerging Approaches in Enhancing the Efficiency and Stability in Non‐Fullerene Organic Solar Cells DOI Creative Commons
Fuwen Zhao, Huotian Zhang, Rui Zhang

et al.

Advanced Energy Materials, Journal Year: 2020, Volume and Issue: 10(47)

Published: Nov. 9, 2020

Abstract The past three years have witnessed rapid growth in the field of organic solar cells (OSCs) based on non‐fullerene acceptors (NFAs), with intensive efforts being devoted to material development, device engineering, and understanding physics. power conversion efficiency single‐junction OSCs has now reached high values over 18%. boost results from a combination promising features NFA OSCs, including efficient charge generation, good transport, small voltage losses. In addition efficiency, stability, which is another critical parameter for commercialization also been investigated. This review summarizes recent advances field, highlights approaches enhancing stability discusses possible strategies further OSCs.

Language: Английский

Citations

161
A Universal Fluorinated Polymer Acceptor Enables All-Polymer Solar Cells with >15% Efficiency DOI
Feng Peng, Kang An, Wenkai Zhong

et al.

ACS Energy Letters, Journal Year: 2020, Volume and Issue: 5(12), P. 3702 - 3707

Published: Nov. 12, 2020

While great progress has been achieved in all-polymer solar cells (all-PSCs), the efficiency of all-PSCs is primarily limited by polymer acceptors that lack a high extinction coefficient, electron mobility, and good compatibility with donors. Here we designed developed acceptor PFA1 based on non-fullerene framework fluorine substituent 1,1-dicyanomethylene-3-indanone unit. In combination an electron-donating polymer, PTzBI-oF, blend film presents extended intensified absorption profile, enhanced favorable morphology. The optimized exhibit remarkably 15.11%, which is, to best our knowledge, highest performance yet reported for all-PSC. Of particular importance applicability as universal range donors achieve impressively efficiencies. These properties enable new molecular design strategy construction toward applications high-performance all-PSCs.

Language: Английский

Citations

160