Organic solar cell donors

Review—Organic Solar Cells: Structural Variety, Effect of Layers, …

As a result, these organic solar cells attained efficiency of 10.8%. Further, established eco-friendly and high-performance donor, PffBT4T-C9C13. The organic solar cells based on PffBT4T-C9C13: PC 71 BM system displayed a high efficiency of 11.7%.

Organic Solar Cells Based on Non-Fullerene Low …

3 · Power conversion efficiencies, nearing the range of 17–18 %, have been accomplished in all-small molecule organic solar cells using narrow bandgap non-fullerene small molecule acceptors along with small …

Dual-donor organic solar cells with 19.13% efficiency through …

Dual-donor organic solar cells with 19.13% efficiency through optimized active layer crystallization behavior Author links open overlay panel Tianhuan Huang, Yang Zhang, Jinjiang Wang, Ziliang Cao, Shuang Geng, Hao …

Mapping the energy level alignment at donor/acceptor interfaces in non-fullerene organic solar cells

In organic solar cells (OSCs), both charge generation and charge recombination occur at the donor (D)–acceptor (A) interfaces. Therefore, the energy level alignment (ELA) at D–A interfaces is ...

Terminal group engineering of oligothiophene donors for efficient organic solar cells …

The efficiencies of all-small-molecule organic solar cells have reached over 17 % [11, 15, 17, 18], employing benzodithiophene (BDT)-centered donor and Y6 derivatives as acceptor [19]. And the efficiencies have reached 16 % for devices employing oligothiophene donor and Y6 derivatives as acceptor [ 20 ].

Impact of Different π-Bridges on the Photovoltaic …

3 · By incorporating thiophene as a π-bridge into the small donor material, the J SC and FF of organic solar cells (OSCs) can be enhanced, resulting in a larger PCE. Furthermore, via the addition of alkyl chains to …

Organic Solar Cells beyond One Pair of Donor–Acceptor: Ternary …

Ternary solar cells enjoy both an increased light absorption width, and an easy fabrication process associated with their simple structures. Significant progress has been made for such solar cells with demonstrated efficiencies over 7%; however, their fundamental working principles are still under investigation. This Perspective is intended …

Single-junction organic solar cells with over 19% efficiency …

Single-junction organic solar cells with over 19% efficiency ...

Molecular Donor–Acceptor Dyads for Efficient Single‐Material Organic Solar Cells

Single-material organic solar cells (SMOSCs) promise several advantages with respect to prospective applications in printed large-area solar foils. Only one photoactive material has to be processed and the impressive thermal and photochemical long-term stability of ...

Chalcogen Atoms Regulate the Organic Solar Cell Performance of B–N-Based Polymer Donors …

Donor polymers play a key role in the development of organic solar cells (OSCs). B–N-based polymer donors, as new types of materials, have attracted a lot of attention due to their special characteristics, such as high E(T1), small ΔEST, and easy synthesis, and they can be processed with real green solvents. However, the relationship …

Recent progress in organic solar cells (Part I material science)

During past several years, the photovoltaic performances of organic solar cells (OSCs) have achieved rapid progress with power conversion efficiencies (PCEs) over 18%, demonstrating a great practical application prospect. The development of material science including conjugated polymer donors, oligomer-like organic molecule donors, …

An all small molecule organic solar cell based on a porphyrin donor …

An all small molecule organic solar cell based on a porphyrin donor and a non-fullerene acceptor with complementary and broad absorption Author links open overlay panel Huan-Huan Gao a 1, Yanna Sun b 1, Shitong Li b, Xin Ke b, Yao Cai b, Xiangjian Wan b, Hongtao Zhang b, Chenxi Li b, Yongsheng Chen b

High-performance organic solar cells based on polymer donor/small molecule donor/nonfullerene acceptor ternary …

We used mid-bandgap small molecule donor TR as a third component to fabricate ternary nonfullerene organic solar cells (OSCs) based on narrow-bandgap polymer donor PTB7-Th and narrow-bandgap nonfullerene acceptor FOIC. TR exhibits full miscibility with PTB7-Th and efficient energy transfer to PTB7-Th, enhanc

All-small-molecule organic solar cells with over 14

All-small-molecule organic solar cells with over 14% ...

A highly crystalline donor enables over 17% efficiency for small-molecule organic solar cells …

The development of novel small-molecule donors is crucial for achieving highly efficient small-molecule organic solar cells (SM-OSCs). In this study, two small-molecule donors, B3TR and B2, were designed and synthesized. In comparison with B3TR, the skeleton of B2 includes an additional benzo[1,2-b:4,5-b′]di

Efficient and stable organic solar cells enabled by …

The OSCs based on multicomponent photoactive layer deliver a high power conversion efficiency of 11.8% and exhibit excellent device stability for over 1000 h …

Air-stable ternary organic solar cells achieved by using fullerene additives in non-fullerene acceptor-polymer donor …

Organic solar cells (OSCs) based on donor–acceptor blends have shown a rapid improvement in power conversion efficiency (PCE) now approaching, for small cells, those of the state-of-the art commercial solar modules. However, performance degradation remains one of the most critical impediments for OSC technol

Wide bandgap polymer donors for high efficiency non-fullerene acceptor based organic solar cells …

In the past few years, the power conversion efficiency (PCE) of organic solar cells (OSCs) has improved rapidly with the milestone value exceeding 18%, primarily owing to the development of novel non-fullerene acceptors (NFAs) as well as matching polymer donors. The molecular structure of a polymer donor fun

Increasing donor-acceptor spacing for reduced voltage loss in …

The performance of donor-acceptor (DA) organic solar cells based on the bulk-heterojunction (BHJ) concept 1, 2 has been improving rapidly 3, 4, 5, 6, 7, 8, 9, …

The new era for organic solar cells: small molecular donors.

Semantic Scholar extracted view of "The new era for organic solar cells: small molecular donors." by Chunhui Duan et al. DOI: 10.1016/j.scib.2020.05.019 Corpus ID: 219452250 The new era for organic solar cells: small molecular donors. @article{Duan2020TheNE ...

An over 16% efficiency organic solar cell enabled by a …

Developing organic photoactive materials with simple chemical structures is a promising strategy to solve the critical cost issue of organic solar cells (OSCs). Here, two pyrazine-based polymer donors with completely non …

Donor Materials for Organic Solar Cell (OSC) | SpringerLink

In the past 10 years, the highest efficiency obtained from organic photovoltaics (OPVs), such as bulk heterojunction (BHJ) polymer solar cells (PSCs), has risen from 2.5 to 11 %, while the solution-processed small molecule (SM) BHJ solar cells arrived at...

Chalcogen Atoms Regulate the Organic Solar Cell Performance …

Donor polymers play a key role in the development of organic solar cells (OSCs). B–N-based polymer donors, as new types of materials, have attracted a lot …

Single-junction organic solar cells with over 19% efficiency …

In organic photovoltaics, morphological control of donor and acceptor domains on the nanoscale is the key for enabling efficient exciton diffusion and …

Preparation of Efficient Organic Solar Cells Based on Terpolymer Donors …

Creating new donor materials is crucial for further advancing organic solar cells. Random terpolymers have been adopted to overcome shortcomings of regular alternating donor–acceptor (D-A) polymers of which the performance is …

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