Characterization and photovoltaic performance of organic device based on AlPcCl/p-Si heterojunction

Soliman, I.M.; El-Nahass, M.M.; Khalifa, B.A.

doi:10.1016/j.synthmet.2015.06.016

Cited by 20 publications

(8 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is due to its potential applications in the manufacture of biosensors or of other types of devices such as organic field-effect transistors (OFETs), organic light-emitting diodes (OLEDs) and in photovoltaic devices [2]. Therefore, the development of organic semiconducting materials is an area that has found multiple applications for organic and heterocyclic conjugated molecules with high chemical stability and one important example of this is represented by phthalocyanines (Pcs) [3][4][5][6][7][8]. Pcs are a class of organic materials which is constituted by four isoindole units through nitrogen atoms.…”

Section: Introductionmentioning

confidence: 99%

“…Its electronic delocalization takes place on the inner ring system, so the phthalocyanine ligand is formally considered as an aromatic system formed by 16 atoms and 18 π electrons, condensed in four benzene rings that retain their electronic structure [5,9]. The most stable structure of the Pcs is the flat one with a C 4h molecular symmetry [6,7]. Pcs are stable up to temperatures above 500 • C, which is not typical for organic materials.…”

Section: Introductionmentioning

confidence: 99%

“…The introduction of various substituents in the CuPc macrocycle can significantly alter the structure and morphology of thin films, which lead to a change in their electrical and detection properties [17]. ZnPc is another example of well-known MPcs, used as a paint pigment [6] and in the industry of catalysts, photoconductors and photodynamic therapy [18]. Thanks to its thermal stability [6], it can be obtained with high purity by successive sublimations; therefore, it is possible to use ZnPc as an electronic component.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Iodine Doping Implementation Effect on the Electrical Response in Metallophthalocyanines (M = Cu, Co, Zn), for Electronic and Photovoltaic Applications

et al. 2022

View full text Add to dashboard Cite

We report the structural organization and its effect on the current response of the conducting domains in MPcs (M = Cu, Co, Zn) films, deposited by vacuum thermal evaporation and doped by the presence of iodine vapors. Structural and surface features of the doped metallophthalocyanines (MPcs) were studied by using IR spectroscopy, X-ray diffraction, atomic force microscope (AFM) and scanning electron microscope (SEM). DFT calculations were carried to study the interaction between iodine and MPcs molecules and establish the influence of iodine on the electronic behavior of these species and the changes on the frontier molecular orbitals. This interaction is thermodynamically favored, and the mechanism of electronic transit involving the iodine atoms providing electrons to the transfer. The I-MPc films have a mainly amorphous structure, some crystallinity in the MPcs α and β forms. A roughness between 18.41 and 99.02 nm and particle size between 1.35 and 15 μm. By evaluating the electrical behavior of the flexible PET/ITO/I-MPc/Ag devices, it was found that J-V curves under illuminated conditions show an increase of curves values upon the I-MPc, indicating that the flexible films are photosensible. Jsc between 1.59 × 10−5 and 2.41 × 10−7 A/cm2, conductivities between 6.17 × 10−8–2.54 × 10−7 Scm−1 and photosensibility values of up to 133%.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Iodine Doping Implementation Effect on the Electrical Response in Metallophthalocyanines (M = Cu, Co, Zn), for Electronic and Photovoltaic Applications

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Two distinct regions characterize these curves indicating two different conduction mechanisms. At V < 0.65 V the current increases exponentially with the applied voltage, while at V ≥ 0.65 V, the current is deviated due to a voltage drop across the resistance associated with the neutral region of a semiconductor and interface states [47]. In the Figure 10b, corresponding to the device ITO/PEDOT:PSS/MP/graphene/Ag, the same behavior is present in all the curves.…”

Section: Deposit and Characterization Of Hybrid Semiconductor Filmsmentioning

confidence: 75%

Deposit and Characterization of Semiconductor Films Based on Maleiperinone and Polymeric Matrix of (Poly(3,4-Ethylenedioxythiophene) Polystyrene Sulfonate)

et al. 2021

View full text Add to dashboard Cite

The development of small semiconductor molecules such as the maleiperinone, have gained importance due to their applications in optoelectronics. In this work semiconductor films composed by a polymer matrix of PEDOT:PSS (poly(3,4-ethylenedioxythiophene) polystyrene sulfonate) and maleiperinone were manufactured. The films used in the studies were deposited by vacuum evaporation and spin-coating techniques. Atomic force microscopy (AFM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and Infrared spectroscopy were used for the analysis of morphological and structural films. The fundamental and the onset of the direct and indirect band gaps were also obtained by UV-vis spectroscopy. The band-model theory and the Density-functional theory (DFT) calculations were applied to determine the optical parameters. The dipole moment is 3.33 Db, and the high polarity gives a signal of the heterogeneous charge distribution along the structure of maleiperinone. Simple devices were made from the films and their electrical behavior was subsequently evaluated. The presence of the polymer decreased the energy barrier between the film and the anode, favoring the transport of charges in the device. Graphene decreased the absorption and its ohmic behavior make it a candidate to be used as a transparent electrode in optoelectronic devices. Finally, the MoO3 provides a behavior similar to a dielectric.

show abstract

“…(i) This study proposes the use in optoelectronics devices of Pcs containing a center of Mn with electronic structure 3d 5 , with the intention that the Mn-3d orbitals may approach the Fermi level [24,25]. (ii) Phthalocyanines with manganese chloride are relevant in this regard because this type of Pcs exhibits distinctive optical properties [26][27][28] and photoelectric behavior worthy of attention [29,30]. (iii) Most of the research about Pcs applied in molecular electronics is related to MPcs of divalent metals, such as ZnPc, CuPc, and MgPc [1,9,[19][20][21][22][23]31] or MPcCl compounds, as AlPcCl [26,[32][33][34] and GaPcCl [27,28,32,35], while there are comparatively few studies of the optical and electrical properties of MnPcCl films [24,25,36].…”

Section: Introductionmentioning

confidence: 99%

Studies on the Structure, Optical, and Electrical Properties of Doped Manganese (III) Phthalocyanine Chloride Films for Optoelectronic Device Applications

et al. 2022

View full text Add to dashboard Cite

In the last few years, significant advances have been achieved in the development of organic semiconductors for use in optoelectronic devices. This work reports the doping and deposition of semiconducting organic thin films based on manganese (III) phthalocyanine chloride (MnPcCl). In order to enhance the semiconducting properties of the MnPcCl films, different types of pyridine-based chalcones were used as dopants, and their influence on the optical and electric properties of the films was analyzed. The morphology and structure of the films were studied using IR spectroscopy and scanning electron microscopy (SEM). Optical properties of MnPcCl–chalcone films were investigated via UV–Vis spectroscopy, and the absorption spectra showed the Q band located between 630 and 800 nm, as well as a band related to charge transfer (CT) in the region between 465 and 570 nm and the B band in the region between 280 and 460 nm. Additionally, the absorption coefficient measurements indicated that the films had an indirect transition with two energy gaps: the optical bandgap of around 1.40 eV and the fundamental gap of around 2.35 eV. The electrical behavior is strongly affected by the type of chalcone employed; for this reason, electrical conductivity at room temperature may vary from 1.55 × 10−5 to 3.02 × 101 S·cm−1 at different voltages (0.1, 0.5, and 1.0 V). Additionally, the effect of temperature on conductivity was also measured; electrical conductivity increases by two orders of magnitude with increasing temperature from 25 to 100 °C. The doping effect of chalcone favors electronic transport, most likely due to its substituents and structure with delocalized π-electrons, the formation of conduction channels caused by anisotropy, and the bulk heterojunction induced by the dopant. In terms of optical and electrical properties, the results suggest that the best properties are obtained with chalcones that have the methoxy group as a substituent. However, all MnPcCl–chalcone films are candidates for use in optoelectronic devices.

show abstract

Characterization and photovoltaic performance of organic device based on AlPcCl/p-Si heterojunction

Cited by 20 publications

References 31 publications

Iodine Doping Implementation Effect on the Electrical Response in Metallophthalocyanines (M = Cu, Co, Zn), for Electronic and Photovoltaic Applications

Iodine Doping Implementation Effect on the Electrical Response in Metallophthalocyanines (M = Cu, Co, Zn), for Electronic and Photovoltaic Applications

Deposit and Characterization of Semiconductor Films Based on Maleiperinone and Polymeric Matrix of (Poly(3,4-Ethylenedioxythiophene) Polystyrene Sulfonate)

Studies on the Structure, Optical, and Electrical Properties of Doped Manganese (III) Phthalocyanine Chloride Films for Optoelectronic Device Applications

Contact Info

Product

Resources

About