The effect of Al electrodes on the nanostructure of poly(3-hexylthiophene): Fullerene solar cell blends during thermal annealing

Kim, Hyo Jung; Park, Jae Hwa; Lee, Hyun Hwi; Lee, Dong Ryeol; Kim, Jang‐Joo

doi:10.1016/j.orgel.2009.08.016

Cited by 52 publications

(24 citation statements)

References 20 publications

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“…As the annealing temperature increasing from 100°C to 150°C, the results showed a degrading in device performance and stability. We find that the optimum annealing temperature is below 150°C as reported by Ryu et al 2009 [4] and Kim et al 2009 [5], which mention about the aggregation of PCBM and increasing of P3HT crystal size when annealing temperature reached 150°C will degrading the device stability and performance [4][5]. The JV characteristic showed the degrading the device stability and performance of the organic solar cell device with annealing temperature of 150°C.…”

Section: Experiments Methodssupporting

confidence: 63%

Effect of annealing treatment on the performance of organic solar cell

Aziz

Salleh

Yahaya

et al. 2010

2010 IEEE International Conference on Semiconductor Electronics (ICSE2010)

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This paper reports the influence of annealing treatment on the performance of organic solar cells. The structure of ITO/PEDOT:PSS/P3HT:PCBM/LiF/Al bulk heterojunction solar cells were fabricated and annealed with three different temperature of 50°C, 100°C and 150°C respectively. IV characteristic of the device found that the annealing treatment might optimize the solar cell performance. For optimum device performance, maximum temperature at 100°C give the shortcircuit current density (Jsc) of 0.55 mA/cm 2 and energy physics behind the improvement will be discussed in this paper.

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Section: Experiments Methodssupporting

confidence: 63%

Effect of annealing treatment on the performance of organic solar cell

Aziz

Salleh

Yahaya

et al. 2010

2010 IEEE International Conference on Semiconductor Electronics (ICSE2010)

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“…However, the corresponding open-circuit voltage ( V oc ) decreases from 0.70 to 0.65 V. All photovoltaic properties of three samples are provided in Table 1 . A higher crystallization, better ordering of the intra-chain configuration, and an improvement in the vertical phase segregation of the thermally-treated sample improve the overall device efficiency 5 11 12 13 14 15 16 17 18 19 20 .…”

Section: Resultsmentioning

confidence: 99%

“…In this method a spin-coated film contains the solvent for a given time, and the spin-coated wet film is then allowed to dry slowly in a covered glass petri dish. Recently, experimental studies [including atomic force microscopy (AFM) 11 12 , ultraviolet and X-ray photoemission spectroscopy (UPS, XPS) 13 14 , transmission electron microscopy (TEM) 12 15 , grazing-incidence wide-angle X-ray scattering (GIWAXS) 16 17 , and small angle neutron scattering 18 ] showed that both thermal annealing and solvent vapor treatment processes improve the morphology and vertical phase separation of OPV, which consequently leads to a dramatic improvement in the performance of a P3HT:PC 61 BM bulk heterojunction system. Y. T. Wang et al .…”

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confidence: 99%

Rapid and Checkable Electrical Post-Treatment Method for Organic Photovoltaic Devices

Park

Seo

Shin

et al. 2016

Sci Rep

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Post-treatment processes improve the performance of organic photovoltaic devices by changing the microscopic morphology and configuration of the vertical phase separation in the active layer. Thermal annealing and solvent vapor (or chemical) treatment processes have been extensively used to improve the performance of bulk-heterojunction (BHJ) organic photovoltaic (OPV) devices. In this work we introduce a new post-treatment process which we apply only electrical voltage to the BHJ-OPV devices. We used the commercially available P3HT [Poly(3-hexylthiophene)] and PC61BM (Phenyl-C61-Butyric acid Methyl ester) photovoltaic materials as donor and acceptor, respectively. We monitored the voltage and current applied to the device to check for when the post-treatment process had been completed. This electrical treatment process is simpler and faster than other post-treatment methods, and the performance of the electrically treated solar cell is comparable to that of a reference (thermally annealed) device. Our results indicate that the proposed treatment process can be used efficiently to fabricate high-performance BHJ-OPV devices.

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“…Out of plane cut is very important since it provides the (100), (200) and (300) peak information, that typically comes from any edge-on orientation of P3HT. 39,40 Position and intensity of (010) peak can be derived from the inplane line cut. The (010) peaks indicates π-π stacking for face-on orientation of P3HT.…”

Section: Methodsmentioning

confidence: 99%

In-situ orientation and crystal growth kinetics of P3HT in drop cast P3HT:PCBM films

Huq

Ammar

Al-Enizi

et al. 2017

Polymer

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Effect of casting solvents on drop cast thin films of conductive conjugated polymers is largely studied by characterizing post processed films. However, the results have often been inconclusive due to the complexity of the in-situ evolution of structures. In this research we implement in-situ grazing incidence wide angle x-ray scattering (GIWAXS) approach to extracting morphological evolution information during film formation in model Poly(3hexylthiophene) (P3HT): [6,6]-phenyl C61-butyric acid methyl ester (PCBM) blend films that have otherwise been widely studied. Casting solvents include chloroform, benzene and tetrahydrothiophene (THT), carefully selected for their relative solubilities of P3HT and PCBM. Individual casting solvent studies show that the casting solvents' solubility for P3HT and pure solvent boiling point, along with residual solvent content in the films have significant implications on final thin film morphology and crystallization of its constituent components. For example, the orientations of P3HT in P3HT:PCBM films, cast from different solvents, are largely affected by the individual solubilities of P3HT and PCBM, and substrate surface energy. On the other hand PCBM crystal growth from different PCBM solutions predominantly depends on the solubilities of PCBM in the solvents and boiling points of solvents. In this study we correlate and distinguish the drying behavior of the blend films with respect to the drying behavior of its constituent components. These results have important ramifications for controlling desired morphology for polymer electronics, such as organic photovoltaics (OPV), organic field effect transistor (OFET) and photo-detectors.

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The effect of Al electrodes on the nanostructure of poly(3-hexylthiophene): Fullerene solar cell blends during thermal annealing

Cited by 52 publications

References 20 publications

Effect of annealing treatment on the performance of organic solar cell

Effect of annealing treatment on the performance of organic solar cell

Rapid and Checkable Electrical Post-Treatment Method for Organic Photovoltaic Devices

In-situ orientation and crystal growth kinetics of P3HT in drop cast P3HT:PCBM films

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