Characterization of ZnO Interlayers for Organic Solar Cells: Correlation of Electrochemical Properties with Thin-Film Morphology and Device Performance

2016 ◽  
Vol 8 (30) ◽  
pp. 19787-19798 ◽  
Author(s):  
Kai-Lin Ou ◽  
Ramanan Ehamparam ◽  
Gordon MacDonald ◽  
Tobias Stubhan ◽  
Xin Wu ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Electrochemical Properties ◽  
Organic Solar Cells ◽  
Device Performance ◽  
Film Morphology

scholarly journals High-Performance Ternary Organic Solar Cells Enabled by Synergizing Fullerene and Non-Fullerene Acceptors

2021 ◽  
Author(s):  
Yuanyuan Jiang ◽  
Xiaozhang Zhu
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Device Performance ◽  
Film Morphology ◽  
Charge Dynamics

With the development of the non-fullerene acceptor (NFA), the use of ternary organic photovoltaic devices based on a fullerene acceptor and a NFA is now widespread, and the merits of both acceptor types can be fully utilized. However, the effective approach of enhancing device performance is adjusting the charge dynamics and the thin-film morphology of the active layer via introducing the second acceptor, which would significantly impact the open-circuit voltage, the short-circuit current, and the fill factor, thus strongly affecting device efficiency. The functions of the second acceptor in a ternary organic solar cell with a fullerene acceptor and a NFA are summarized here. These include a broader absorption spectrum; formation of a cascade energy level or energy transfer; modified thin-film morphology including phase separation, effects on crystallinity, size, and purity of domain; and vertical distribution along with improved charge dynamics like exciton dissociation and charge transport, collection, and recombination. Then, we discuss the hierarchical morphology in ternary solar cells may benefit device performance and the outlook of the ternary device.

scholarly journals Fabrication and Characterization of PCBM: P3HT-based Thin-film Organic Solar Cells with Zinc Phthalocyanine and 1,8-Diiodooctane

2017 ◽  
Vol 5 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Haruto Maruhashi ◽  
Takeo Oku ◽  
Atsushi Suzuki ◽  
Tsuyoshi Akiyama ◽  
Yasuhiro Yamasaki
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Zinc Phthalocyanine ◽  
Fabrication And Characterization

Fabrication and characterization of P3HT:PCBM-based thin film organic solar cells with zinc phthalocyanine

2015 ◽  
Author(s):  
Haruto Maruhashi ◽  
Takeo Oku ◽  
Atsushi Suzuki ◽  
Tsuyoshi Akiyama ◽  
Yasuhiro Yamasaki
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Zinc Phthalocyanine ◽  
Fabrication And Characterization

scholarly journals All-Polymer Solar Cells Based on Fully Conjugated Donor-Acceptor Block Copolymers with Poly(naphthalene bisimide) Acceptor Blocks: Device Performance and Thin Film Morphology

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Kazuhiro Nakabayashi ◽  
Hideharu Mori
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Polymer Solar Cells ◽  
Grazing Incidence ◽  
Open Circuit ◽  
Device Performance ◽  
Film Morphology ◽  
Force Microscopy ◽  
Donor And Acceptor ◽  
Donor Acceptor

All-polymer solar cells are fabricated by using poly(3-hexylthiophene) (P3HT) and fully conjugated donor-acceptor (D-A) block copolymer (P3HT-PNBI-P3HT) as donor and acceptor materials, respectively. Atomic force microscopy (AFM) and grazing incidence wide angle X-ray scattering (GIWAXS) analyses reveal that device performance strongly depends on the P3HT:P3HT-PNBI-P3HT thin film morphology. Indeed, theπ-πstacking nanomorphology rich in the edge-on orientation is formed in the P3HT:P3HT-PNBI-P3HT thin film by optimizing the fabrication conditions, for example, thermal annealing temperature and cast solvent. Consequently, the power conversion efficiency (PCE) of 1.60% is achieved with an open-circuit voltage (Voc) of 0.59 V, short-current (Jsc) of 4.43 mA/cm2, and fill factor (FF) of 0.61. These results suggest that P3HT-PNBI-P3HT has the huge potential for the usage as a nonfullerene acceptor material.

scholarly journals Recent Advances of Film–Forming Kinetics in Organic Solar Cells

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7604
Author(s):  
Qiuju Liang ◽  
Jianhong Yao ◽  
Zhangbo Hu ◽  
Puxin Wei ◽  
Haodong Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Low Cost ◽  
Device Performance ◽  
Film Morphology ◽  
Forming Process ◽  
Crystallinity Degree ◽  
Film Forming ◽  
Donor And Acceptor ◽  
Conversion Efficiencies

Solution–processed organic solar cells (OSC) have been explored widely due to their low cost and convenience, and impressive power conversion efficiencies (PCEs) which have surpassed 18%. In particular, the optimization of film morphology, including the phase separation structure and crystallinity degree of donor and acceptor domains, is crucially important to the improvement in PCE. Considering that the film morphology optimization of many blends can be achieved by regulating the film–forming process, it is necessary to take note of the employment of solvents and additives used during film processing, as well as the film–forming conditions. Herein, we summarize the recent investigations about thin films and expect to give some guidance for its prospective progress. The different film morphologies are discussed in detail to reveal the relationship between the morphology and device performance. Then, the principle of morphology regulating is concluded with. Finally, a future controlling of the film morphology and development is briefly outlined, which may provide some guidance for further optimizing the device performance.

Morphology-performance relationships in polymer/fullerene blends probed by complementary characterisation techniques – effects of nanowire formation and subsequent thermal annealing

2015 ◽  
Vol 3 (35) ◽  
pp. 9224-9232 ◽  
Author(s):  
Jong Soo Kim ◽  
Sebastian Wood ◽  
Safa Shoaee ◽  
Steve J. Spencer ◽  
Fernando A. Castro ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thermal Annealing ◽  
Organic Solar Cells ◽  
Film Morphology ◽  
Polymer Nanowires ◽  
Subsequent Thermal Annealing ◽  
Characterisation Techniques

Polymer nanowires are used to form organic solar cells, and the development of the thin film morphology during thermal annealing is characterised in detail.

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