Efficient solvent-assisted external treatment for planar heterojunction small-molecule organic solar cells

2014 ◽  
Vol 2 (26) ◽  
pp. 10250-10256 ◽  
Author(s):  
Jinhyun Kim ◽  
Ilsu Heo ◽  
Dasom Park ◽  
Sang Jung Ahn ◽  
Sung-Yeon Jang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Active Layers ◽  
Planar Heterojunction

We developed a novel solvent-assisted treatment (SAT) technique to modify the nanomorphology of the planar heterojunction (PHJ) bilayer active layers (ZnPc/C60) of organic photovoltaics (OPVs).

scholarly journals All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Ruimin Zhou ◽  
Zhaoyan Jiang ◽  
Chen Yang ◽  
Jianwei Yu ◽  
Jirui Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Photovoltaic System ◽  
Active Layers ◽  
Donor Acceptor

AbstractThe high efficiency all-small-molecule organic solar cells (OSCs) normally require optimized morphology in their bulk heterojunction active layers. Herein, a small-molecule donor is designed and synthesized, and single-crystal structural analyses reveal its explicit molecular planarity and compact intermolecular packing. A promising narrow bandgap small-molecule with absorption edge of more than 930 nm along with our home-designed small molecule is selected as electron acceptors. To the best of our knowledge, the binary all-small-molecule OSCs achieve the highest efficiency of 14.34% by optimizing their hierarchical morphologies, in which the donor or acceptor rich domains with size up to ca. 70 nm, and the donor crystals of tens of nanometers, together with the donor-acceptor blending, are proved coexisting in the hierarchical large domain. All-small-molecule photovoltaic system shows its promising for high performance OSCs, and our study is likely to lead to insights in relations between bulk heterojunction structure and photovoltaic performance.

Low Nonradiative Energy Losses within 0.2 eV in Efficient Non-fullerene All-Small-Molecule Organic Solar Cells

2021 ◽  
Author(s):  
Ziyun Huang ◽  
Yanan Shi ◽  
Yilin Chang ◽  
Chen Yang ◽  
Min Lv ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Large Energy ◽  
Energy Losses ◽  
Remarkable Progress

Despite the remarkable progress achieved in the field of non-fullerene acceptor (NFA)-based organic photovoltaics (OPVs) in recent years, the large energy loss remains the major factor limiting the power conversion...

scholarly journals Improved Reliability of Small Molecule Organic Solar Cells by Double Anode Buffer Layers

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Pao-Hsun Huang ◽  
Chien-Jung Huang ◽  
Kan-Lin Chen ◽  
Jhong-Ciao Ke ◽  
Yeong-Her Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Copper Phthalocyanine ◽  
Open Circuit ◽  
Buffer Layers ◽  
Double Layers ◽  
Temperature And Pressure ◽  
Planar Heterojunction

An optimized hybrid planar heterojunction (PHJ) of small molecule organic solar cells (SM-OSCs) based on copper phthalocyanine (CuPc) as donor and fullerene (C60) as acceptor was fabricated, which obviously enhanced the performance of device by sequentially using both MoO3and pentacene as double anode buffer layers (ABL), also known as hole extraction layer (HEL). A series of the vacuum-deposited ABL, acting as an electron and exciton blocking layer, were examined for their characteristics in SM-OSCs. The performance and reliability were compared between conventional ITO/ABL/CuPc/C60/BCP/Ag cells and the new ITO/double ABL/CuPc/C60/BCP/Ag cells. The effect on the electrical properties of these materials was also investigated to obtain the optimal thickness of ABL. The comparison shows that the modified cell has an enhanced reliability compared to traditional cells. The improvement of lifetime was attributed to the idea of double layers to prevent humidity and oxygen from diffusing into the active layer. We demonstrated that the interfacial extraction layers are necessary to avoid degradation of device. That is to say, in normal temperature and pressure, a new avenue for the device within double buffer layers has exhibited the highest values of open circuit voltage (Voc), fill factor (FF), and lifetime in this work compared to monolayer of ABL.

scholarly journals IR thermographic camera as useful and smart tool to analyse defects in organic solar cells

2020 ◽  
Vol 12 (2) ◽  
pp. 25
Author(s):  
Wojciech Przybył ◽  
Krzysztof Artur Bogdanowicz ◽  
Beata Jewłoszewicz ◽  
Agnieszka Dylong ◽  
Karolina Dysz ◽  
...  
Keyword(s):  
Quality Control ◽  
Solar Cells ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Patent Application ◽  
Applied Physics ◽  
Chemical Research ◽  
Thermographic Camera ◽  
Lock In

The main goal of this paper was to show that organic layers prepared for organic solar cells construction can be partially characterized by IR thermographic camera to detect dysfunctionalities of the active layer. Moreover, we used IR thermographic camera to check thermal and electrical behaviour of created simple solar cells to reduce time and cost in global production of solar cells. As model system organic compounds such as PTB7 polymer and small molecule PC71BM as commercial components and newly synthesized imine PV-BLJ-SC11 there were used, to construct simple devices. Full Text: PDF ReferencesK. D. G. I. Jayawardena, L. J. Rozanski, C. A. Mills, M. J. Beliatis, N. A. Nismy, S. R. P. Silva, "Inorganics-in-Organics’: recent developments and outlook for 4G polymer solar cells", Nanoscale, 2013, 5, 8411-8427. CrossRef Y. Lin, X. Zhan, "Oligomer Molecules for Efficient Organic Photovoltaics", Accounts of Chemical Research, 2016, 49, 175-183. CrossRef R. Steim, S. A. Choulis, P. Schilinsky, U. Lemmer, C. J. Brabec, "Formation and impact of hot spots on the performance of organic photovoltaic cells", Applied Physics Letters, 2009, 94, 043304. CrossRef J. Hepp, F. Machui, H. J. Egelhaaf, C. J. Brabec, A. Vetter, "Automatized analysis of IR‐images of photovoltaic modules and its use for quality control of solar cells", Energy Science and Engineering. 2016, 4, 363-371. CrossRef H. Hoppe, J. Bachmann, B. Muhsin, K. H. Drüe, I. Riedel, G. Gobsch, C. Buerhop-Lutz, C. J. Brabec, V. Dyakonov, "Quality control of polymer solar modules by lock-in thermography", Journal of Applied Physics, 2010, 107, 014505. CrossRef J. Bachmann, C. Buerhop-Lutz, C. Deibel, I. Riedel, H. Hoppe, C. J. Brabec, V. Dyakonov, "Organic solar cells characterized by dark lock-in thermography", Solar Energy Materials and Solar Cells, 2010, 94, 642-647. CrossRef A. Różycka, K. A. Bogdanowicz, N. Górska, J. Rysz, M. Marzec, A. Iwan, R. Pich, A. Januszko, "Influence of TiO2 Nanoparticles on Liquid Crystalline, Structural and Electrochemical Properties of (8Z)-N-(4-((Z)-(4-pentylphenylimino)methyl)benzylidene)-4-pentylbenzenamine", Materials, 2019, 12, 1097. CrossRef M. L. Petrus, R. K. M. Bouwer, U. Lafont, S. Athanasopoulos, N. C. Greenham, T. J. Dingemans, "Small-molecule azomethines: organic photovoltaics via Schiff base condensation chemistry", Journal of Materials Chemistry A, 2014, 2, 9474-9477. CrossRef K. A. Bogdanowicz, A. Iwan, "Symmetrical Imines with Trirphenylamine Core and the Method of Obtaining Thereof.", March 11th 2019, patent application P.429044. DirectLink K. P. Korona, T. Korona, D. Rutkowska-Zbik, S. Grankowska-Ciechanowicz, A. Iwan, M. Kamińska, "Polyazomethine as a component of solar cells-theoretical and optical study", Journal of Physics and Chemistry of Solids, 2015, 86, 186-193. CrossRef

scholarly journals Efficiency enhancement of small molecule organic solar cells using hexapropyltruxene as an interface layer

2020 ◽  
Vol 8 (14) ◽  
pp. 4909-4918 ◽  
Author(s):  
Hanyang Ye ◽  
Sameer Vajjala Kesava ◽  
Josué F. Martínez Hardigree ◽  
Roisin E. Brown ◽  
Giulio Mazzotta ◽  
...  
Keyword(s):  
Solar Cells ◽  
Thin Layer ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Interface Layer ◽  
Efficiency Enhancement ◽  
Heterojunction Solar Cells ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction ◽  
Boron Subphthalocyanine

The effect of a thin layer of hexapropyltruxene inserted at the interface between the electron donor boron subphthalocyanine chloride (SubPc) and its underlying hole contact in planar heterojunction solar cells was investigated.

scholarly journals Efficient Organic Solar Cells with Polymer-Small Molecule: Fullerene Ternary Active Layers

ACS Omega ◽  
2017 ◽  
Vol 2 (5) ◽  
pp. 1786-1794 ◽  
Author(s):  
Wenzhan Xu ◽  
Chao Yi ◽  
Xiang Yao ◽  
Lili Jiang ◽  
Xiong Gong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Active Layers

A narrow band gap isoindigo based molecular donor for solution processed organic solar cells

2015 ◽  
Vol 39 (7) ◽  
pp. 5075-5079 ◽  
Author(s):  
Jetsuda Areephong ◽  
Ronan R. San Juan ◽  
Abby-Jo Payne ◽  
Gregory C. Welch
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Active Layer ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Narrow Band ◽  
Solution Processed

Organic photovoltaics devices with 3.2% PCE were demonstrated using an isoindigo small molecule donor: fullerene acceptor active layer.

scholarly journals Effect of 4-biphenyl groups on the charge transport and photovoltaic properties of arylamine based push–pull systems

2020 ◽  
Vol 44 (27) ◽  
pp. 11441-11447 ◽  
Author(s):  
Pablo Simón Marqués ◽  
José María Andrés Castán ◽  
Pierre Josse ◽  
Martin Blais ◽  
Amir Hossein Habibi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Power Conversion ◽  
Photovoltaic Properties ◽  
Pull Systems ◽  
Planar Heterojunction ◽  
Conversion Efficiencies

The synthesis of two N,N-bis(4-biphenylyl)aniline (BPA) based push–pull is reported herein. Evaluation as donor materials in all-small-molecule planar-heterojunction organic solar cells lead to impressive fill factor (>73%) and promising power conversion efficiencies.

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