High-Efficiency and High-Monochromaticity Semitransparent Organic Solar Cells Based on Optical Tamm States DOI Creative Commons
Junwei Zhao,

S. H. Lin,

Jinxin Zhou

et al.

Photonics, Journal Year: 2024, Volume and Issue: 11(11), P. 1030 - 1030

Published: Nov. 1, 2024

Semitransparent organic solar cells (ST-OSCs) have garnered more interest and stand out as promising candidates for next-generation energy harvesters with their unique advantages. However, challenges remain the advancement of colorful ST-OSCs, such enhancing light absorption transmittance without considerable power conversion efficiency (PCE) losses. Herein, an optical analysis silver (Ag) electrodes one-dimensional photonic crystals (1DPCs) was conducted by simulations, revealing presence Tamm states (OTSs) at interface Ag/1DPCs. Furthermore, spectral electrical properties were fine-tuned modulating OTSs through theoretical utilizing PM6:Y6 active layer. The structural parameters ST-OSCs optimized, including Ag layer thickness, central wavelength 1DPCs, first WO3 pair number WO3/LiF. optimization resulted in successful development blue, violet-blue, red ST-OSC devices, which exhibited peak intensities ranging from 31.5% to 37.9% PCE losses between 1.5% 5.2%. Notably, blue device a intensity 37.0% 15.24%, only loss efficiency. This research presents innovative approach performance achieving balance high transparency

Language: Английский

Wavelength-selective solar photovoltaic systems to enhance spectral sharing of sunlight in agrivoltaics DOI Creative Commons
Silvia Ma Lu, Stefano Amaducci, Shiva Gorjian

et al.

Joule, Journal Year: 2024, Volume and Issue: 8(9), P. 2483 - 2522

Published: Sept. 1, 2024

Language: Английский

Citations

11
20.4% Power conversion efficiency from albedo-collecting organic solar cells under 0.2 albedo DOI Creative Commons

Hao Ren,

Jingde Chen, Yefan Zhang

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(44)

Published: Nov. 1, 2024

Highly efficient bifacial organic solar cells (OSCs) have not been reported due to limited thickness of the active layer in conventional configurations, allowing for harvesting front sunlight and albedo light. Here, OSCs are with efficiency higher than monofacial counterparts. The incorporation pyramid-based asymmetrical optical transmission (AOT) array a transparent silver electrode suppresses escaping without sacrificing Parasitic absorption induced by excitation surface plasmons an AOT is further reduced doping emitter electron transport capping high dielectric constant film silver. rear achieves transmittance 7% 86%. At 0.2, synergistic effect minimized loss endow power conversion 20.4%. This work paves way utilization light OSCs.

Language: Английский

Citations

11
Manipulating Molecular Stacking for Semitransparent Organic Photovoltaics Achieving Light Utilization Efficiency >6% DOI Open Access

Junyuan Ding,

Hongyu Mou,

Haiyang Chen

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 16, 2025

Abstract The trade‐off between average visible transmittance (AVT) and power conversion efficiency (PCE), governed by the molecular stacking of donor acceptor materials in semitransparent organic solar cells (ST‐OSCs), significantly constrains improvements light utilization (LUE). Here, simultaneous enhancement AVT PCE is achieved meticulously designing host‐guest active layers to fine‐tune stacking. A systematic investigation various host guest material combinations reveals that (D18) with more electron‐deficient hydrogen atoms tends form C─H···O interactions (BTO‐BO) features electron‐rich oxygen atoms. Hydrogen bonding D18 BTO‐BO facilitate transition from mixed J ‐type H modes predominant during crystallization, reducing absorption enhancing hole transport. Additionally, can act as a nucleation agent for BTP‐eC9 increase crystallinity coefficient layer, thereby, near‐infrared absorption. resultant toluene‐processed ST‐OSCs optical modulation exhibit improvement AVT, delivering record LUEs 6.02%. Notably, this layer demonstrates exceptional compatibility flexible devices promising scalability greenhouse photovoltaic applications.

Language: Английский

Citations

1
N‐Doping Donor‐Dilute Semitransparent Organic Solar Cells to Weaken Donor: Acceptor Miscibility and Consolidate Donor‐Phase Continuity DOI Creative Commons
Jiaqi Xie, Weihua Lin, Kaibo Zheng

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(31)

Published: June 17, 2024

Abstract Lightweight and semi‐transparent organic solar cells (ST‐OSCs) offer bright promise for applications such as building integrated photovoltaics. Diluting donor content in bulk‐heterojunction active layers to allow greater visible light transmittance (AVT) effectively enhances device transparency, yet the ineluctable compromise of donor‐phase continuity is challenging efficient charge transport. Herein, a trace amount n ‐type N ‐DMBI dopant incorporated, which facilitates donor:acceptor (D:A) de‐mixing by strengthening both acceptor polarity D/A crystallization. With diminution component inter‐mixing, limited number donors increasingly self‐aggregate establish more continuous phases. For benchmark PM6:Y6‐based ST‐OSCs, when reduced from regular 45 optimal 30 wt.%, AVT remarkably raised than quarter, accompanied marginal drop power conversion efficiency 13.89% 13.03%. This study reveals that decreasing <30 wt%, excitons induced Förster resonance energy transfer are prone severe radiative recombination. nonetheless mitigated inclusion within phase providing extra offset prolonging state lifetime assist exciton dissociation.

Language: Английский

Citations

4
Unravel the Distinctive Roles of Liquid and Solid Additives in Blade‐Coated Active Layer for Organic Solar Cell Modules DOI

Adiljan Wupur,

Yaokai Li,

Yongmin Luo

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 24, 2024

Abstract Although encouraging progress in spin‐coated small‐area organic solar cells (OSCs), reducing efficiency loss caused by differences film uniformity and morphology when up‐scaled to large‐area modules through meniscus‐guided coating is an important but unsolved issue. In this work, in‐depth research conducted on the influence of both liquid solid additives active layer blade‐coated PM6:L8‐BO binary system. The study reveals that high boiling point like 1,8‐diiodooctane (DIO) used blade‐coating not only delay volatilization solvent also trigger Marangoni flow same direction as capillary flow, causing excessive aggregation acceptors, therefore destroying device performance. On contrary, additive 2‐Iododiphenyl ether (IDPE), which first reported can preserve mechanism for improving performance while effectively suppressing acceptors during film‐forming process from halogen‐free toluene, resulting highly homogeneous films. Consequently, with impressive 15.34% a total module area 18.90 cm 2 via based are achieved. This provides deep understanding effect perspective fluid mechanisms gives pathway development green printed high‐efficiency OSCs.

Language: Английский

Citations

4
Optimization Light Utilization Efficiency of Semitransparent Organic Solar Cells by Regulating Absorption Spectrum DOI

Dan Wang,

Fenghua Zhang,

Mandi Li

et al.

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(14), P. 6013 - 6020

Published: July 10, 2024

Language: Английский

Citations

3
Boosting Fill Factor of Semitransparent Donor‐Poor Organic Solar Cells for the Best Light Utilization Efficiency DOI Open Access
Fei Xue, Yuhao Xie, Yu Cui

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 24, 2024

Abstract Reducing the content of light‐absorbing material in active layer semitransparent organic solar cells (ST‐OSCs) enhances average visible transmittance (AVT) but sacrifices power conversion efficiency (PCE). This dilemma is a key challenge to ST‐OSCs. Here trityl tetrakis(pentafluorophenyl) borate (TrTPFB)‐doping polymer donor at suboptimal donor:acceptor (D:A) ratio reported as an approach enhance light utilization (LUE) via boosting fill factor (FF). The D:A results not only less efficient hole transporting network also narrower charge photogeneration profile. latter widens flat‐band region. These deteriorations make diffusion crucial for compensating collection. TrTPFB‐doping mainly helps elongate length alleviate severe bimolecular recombination. As result, FF boosts from 65.1% 72.2% film AVT increased device, which comparable that bulk heterojunction device with optimal ratio. best LUE 3.51% achieved TrTPFB‐doped ST‐OSCs based on ternary combination; moreover, 5.18% predicted after proper optical optimization. ST‐OSC showcases greenhouse rooftop, outperforms glass one wheat plant.

Language: Английский

Citations

3
Modeling‐Guided Design of Semitransparent Organic Photovoltaics with Improved Energy Harvesting and Saving Capabilities DOI
Nan Zhang, Zhisheng Zhou,

Yidan An

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Abstract Integrating semitransparent organic photovoltaics (ST‐OPVs) into building structures is a promising technology that serves aesthetic purposes while retaining window functionality, and it also facilitates solar energy harvesting heat insulation. However, balancing power conversion efficiency (PCE), visible light transmittance (VLT), infrared radiation rejection (IRR), color rendering index (CRI) for applications remains significant challenge. In this study, ST‐OPVs are developed feature innovative near‐infrared‐absorbing materials. These devices further coupled with an optical layer optimized through high‐throughput modeling to fine‐tune enhance the different properties of ST‐OPVs. Specifically, achieved VLT over 30%, PCE 12.5%, IRR 90%, CRI 80. Furthermore, higher 14% 95% can be achieved, demonstrating tunability these photovoltaic properties. figures highlight exceptional performance specialized applications, their dual function generating electricity saving. Additionally, simulations show replacing traditional insulation films reduce annual demand by up 60%, using Hong Kong as example, underscoring potential in sustainable building‐integrated (BIPV) applications.

Language: Английский

Citations

3
Recent progress in device engineering for semitransparent organic photovoltaics DOI

Chuanfang Zhu,

Hanli Zheng, Liang Zhao

et al.

Science China Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Language: Английский

Citations

0
Poly(ionic liquid) Nanocone Arrays as Light-Harvesting Antenna Enables Hot-Electron Mediated Chemistry under Natural Sunlight DOI Creative Commons
Fuwei Sun, Hao Dong, Shiqiang Wang

et al.

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Language: Английский

Citations

0