Extraction of bulk and contact components of the series resistance in organic bulk donor-acceptor-heterojunctions

Aernouts, Tom; Geens, Wim; Poortmans, Jef; Heremans, Paul; Borghs, Staf; Mertens, R.

doi:10.1016/s0040-6090(01)01584-x

Cited by 112 publications

(74 citation statements)

References 5 publications

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“…Aernouts et al found that applying the PEDOT:PSS layer results in an improvement of open circuit voltage. [ 147 ] Ouyang and colleagues reported the H 2 SO 4 -treated PEDOT:PSS fi lms replaced ITO as the transparent electrode of PSC. [ 117 ] Figure 16 showed the current density( J )-voltage( V ) curves of the PSCs.…”

Section: Applications Of Highly Conductive Pedot:pss Filmsmentioning

confidence: 99%

Effective Approaches to Improve the Electrical Conductivity of PEDOT:PSS: A Review

Shi

Liu

Jiang

et al. 2015

Adv Elect Materials

936

812

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The rapid development of novel organic technologies has led to significant applications of the organic electronic devices such as light‐emitting diodes, solar cells, and field‐effect transistors. There is a great need for conducting polymers with high conductivity and transparency to act as the charge transport layer or electrical interconnect in organic devices. Poly(3,4‐ethylenedioxythiophene): poly(styrenesulfonic acid) (PEDOT:PSS), well‐known as the most remarkable conducting polymer, has this role owing to its good film‐forming properties, high transparency, tunable conductivity, and excellent thermal stability. In this Review, various of interesting physical and chemical approaches that can effectively improve the electrical conductivity of PEDOT:PSS are summarized, focusing especially on the mechanism of the conductivity enhancement as well as applications of PEDOT:PSS films. Prospects for future research efforts are also provided. It is expected that PEDOT:PSS films with high conductivity and transparency could be the focus of future organic electronic materials breakthroughs.

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Section: Applications Of Highly Conductive Pedot:pss Filmsmentioning

confidence: 99%

Effective Approaches to Improve the Electrical Conductivity of PEDOT:PSS: A Review

Shi

Liu

Jiang

et al. 2015

Adv Elect Materials

936

812

View full text Add to dashboard Cite

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“…Second, the increase in PCBM wt % in the solar cell active layer increases the electron transport towards Al electrode and, therefore, increases the photocurrent. As previously reported, the most efficient devices had a large fullerene content of up to 80% by weight [24][25][26][27]. Field-effect mobility measurements for different blends of MEH-PPV and PCBM showed an increase in electron mobility upon an increase in the fullerene content [28].…”

Section: External Photocurrent Quantum Efficiency Spectramentioning

confidence: 69%

Investigation of PCBM Concentration on the Performance of Small Organic Solar Cell

Ismail

Soga

Jimbo

2012

ISRN Renewable Energy

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We have fabricated bulk heterojunction organic solar cells using coumarin 6 (C6) as a small organic dye, for light harvesting and electron donating, with fullerene derivative [6,6]-phenyl-C 61 butyric acid methyl ester (PCBM), acting as an electron acceptor, by spin-coating technique of the blend solutions. We have studied effect of PCBM concentration on photocurrent and performance parameters of the solar cells. We found that the optical absorption of the dye increased with increasing its concentration in the active layer blends. The higher concentrations of PCBM in active layer enhanced the photocurrent of the solar cells, as a result of improving charge carrier separation and electron transport in solar cell active layer. The improved charge carrier separation between C6, as a donor, and PCBM, as an acceptor, was indicated through the formation of bulk heterojunction by blending C6 with PCBM. The formation of C6:PCBM bulk heterojunction blend was confirmed through the symbatic behavior of the corresponding solar cell and, also, through the homogeneity and smoothing in the atomic force microscopy images of the C6:PCBM blend films. For the same reasons, the performance parameters of the C6:PCBM solar cell improved by modification of the PCBM concentration in the solar cell active layer.

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“…Poly(3,4-ethylenedioxythiophene) (PEDOT, Figure 2) was developed in the late 1980s in the research laboratories of Bayer AG (Leverkusen, Germany), and it was the first IFL material used in PSCs in 1998 [47] by following its successful applications in the field of organic light-emitting diodes (OLEDs) [48], or in a more conscious way in 2002 [49]. It remains its popularity in manifold ways till now.…”

Section: Poly(34-ethylenedioxythiophene)s and Polyaniline Derivativesmentioning

confidence: 99%

Interfacial Layer Engineering for Performance Enhancement in Polymer Solar Cells

et al. 2015

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Improving power conversion efficiency and device performance stability is the most critical challenge in polymer solar cells for fulfilling their applications in industry at large scale. Various methodologies have been developed for realizing this goal, among them interfacial layer engineering has shown great success, which can optimize the electrical contacts between active layers and electrodes and lead to enhanced charge transport and collection. Interfacial layers also show profound impacts on light absorption and optical distribution of solar irradiation in the active layer and film morphology of the subsequently deposited active layer due to the accompanied surface energy change. Interfacial layer engineering enables the use of high work function metal electrodes without sacrificing device performance, which in combination with the favored kinetic barriers against water and oxygen penetration leads to polymer solar cells with enhanced performance stability. This review provides an overview of the recent progress of different types of interfacial layer materials, including polymers, small molecules, graphene oxides, fullerene derivatives, and metal oxides. Device performance enhancement of the resulting solar cells will be elucidated and the function and operation mechanism of the interfacial layers will be discussed. OPEN ACCESSPolymers 2015, 7 334

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Extraction of bulk and contact components of the series resistance in organic bulk donor-acceptor-heterojunctions

Cited by 112 publications

References 5 publications

Effective Approaches to Improve the Electrical Conductivity of PEDOT:PSS: A Review

Effective Approaches to Improve the Electrical Conductivity of PEDOT:PSS: A Review

Investigation of PCBM Concentration on the Performance of Small Organic Solar Cell

Interfacial Layer Engineering for Performance Enhancement in Polymer Solar Cells

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