Effects of source and substrate temperatures on the properties of ITO/CuPc/C60 heterostructure prepared by physical vapor deposition

Chiu, Kuan−Cheng; Juey, Liu Ting; Su, C. F.; Tang, Shiow Jing; Jong, Ming Nan; Wang, Sheng Shin; Wang, Jyh Shyang; Yang, C. S.; Chou, Wu–Ching

doi:10.1016/j.jcrysgro.2007.11.006

Cited by 8 publications

(3 citation statements)

References 26 publications

(39 reference statements)

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“…A BCP layer instead of Alq3 layer is adopted as the ETL of the device, resulting in more dramatic changes in performance of devices. In this study, devices with BCP ETL show a better PV response: J sc = 3.4 mA/cm 2 , V oc = 0.4 V, FF = 0.4 and PCE = 0.54%, which is comparable with other results [6,10]. The increased PCE of devices with a BCP layer is due to the increase of J sc .…”

Section: Current-voltage Characteristics Of Devicessupporting

confidence: 87%

Effect of electron transport layer materials on the performance of copper phthalocyanine/fullerene heterojunction with function of organic solar cells

Chou¹,

Huang

Wang

et al. 2010

Journal of Non-Crystalline Solids

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Section: Current-voltage Characteristics Of Devicessupporting

confidence: 87%

Effect of electron transport layer materials on the performance of copper phthalocyanine/fullerene heterojunction with function of organic solar cells

Chou¹,

Huang

Wang

et al. 2010

Journal of Non-Crystalline Solids

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“…24 In addition, the highly conjugated electronic structure with 18 p electrons combined to properties such as electroactivity, semiconductivity, photoconductivity, photochemical activity, electrochromism, luminescence, non-linear optics, and optical storage lead to great potentiality for diverse applications. [25][26][27][28][29][30][31][32] Particularly important is the possibility of forming thin films of phthalocyanines through different techniques such as LbL, 16,19 physical vapor deposition (PVD) either by thermal evaporation 33,34 or sputtering, 35 Langmuir-Blodgett (LB), 36,37 electrodeposition, 38 spin-coating, 39 and casting, 40 since many organic devices use the element transducers in the form of thin films. For instance, promising technological applications have been suggested for phthalocyanines in the form of thin films for light emitting diodes, 41 transistors, 42 solar cells, 19 liquid crystals, 43 fuel cells, 44 and sensors.…”

Section: Introductionmentioning

confidence: 99%

Iron phthalocyanine in non-aqueous medium forming layer-by-layer films: growth mechanism, molecular architecture and applications

Aléssio

Rodrı́guez-Méndez

Sáez

et al. 2010

Phys. Chem. Chem. Phys.

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The application of organic thin films as transducer elements in electronic devices has been widely exploited, with the electrostatic layer-by-layer (LbL) technique being one of the most powerful tools to produce such films. The conventional LbL method, however, is restricted in many cases to water soluble compounds. Here, an alternative way to produce LbL films containing iron phthalocyanine (FePc) in non-aqueous media (chloroform) is presented. This film fabrication was made possible by exploiting the specific interactions between Fe and NH(2) groups from PAH, poly(allylamine hydrochloride) used as the supporting layer, leading to the formation of bilayers structured as (PAH/FePc)(n). We have also incorporated silver nanoparticles (AgNPs) in LbL films with (PAH/FePc/AgNP)(n) trilayers, making it possible to achieve the surface-enhanced Raman scattering (SERS) phenomenon. The molecular architecture of the LbL films was determined through different techniques. The growth was monitored with UV-Vis absorption spectroscopy, their morphology characterized by optical and scanning electron (SEM) microscopes, and their molecular organization determined using FTIR. The electrochemical properties of the LbL films were successfully applied in detecting dopamine in KCl aqueous solutions at different concentrations using cyclic voltammetry. The results confirmed that the LbL films from FePc in non-aqueous media keep their electroactivity, while showing an interesting electrocatalytic effect. The SERS phenomenon suggested that FePc aggregates might be directly involved in the maintenance of the electroactivity of the LbL films.

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“…However, the growth process during the co-evaporation of film used in high-performance BHJ structures has not been explored; this is because of the difficulty in analyzing these structures. To date, the film morphology and crystallinity of BHJ films has been controlled by tuning the substrate temperature (T sub ) only [8,11,12]. The quality of vacuum-evaporated films including the morphology and the crystal size depends on the rate of crystal nucleation, and T sub and deposition rate (V depo ) during deposition are well-recognized as factors affecting the crystal size control [13].…”

Section: Introductionmentioning

confidence: 99%

Morphological analysis of co-evaporated blend films based on initial growth for organic photovoltaics

Shibata

Taima

Zhou

et al. 2015

Applied Surface Science

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Bulk heterojunction structures composed of electron donor and acceptor molecules for application in high-performance organic photovoltaics studied. To fabricate these structures, the co-evaporation method in vacuum is commonly applied; however, the details of the crystal growth process during co-evaporation have not yet been established. Here, we focused on structural analysis of blend films composed of phthalocyanine and fullerene based on initial growth stage. Similar crystal growth behavior to that typically observed in single-component molecules is obtained for the films. These results suggest that the competitive crystal growth between donors and acceptors occurs during co-evaporation process. The balance of thin film growth among donor and acceptor molecules can be related to improved photovoltaic performance. The homogeneous blend structure leads to improvement of the power conversion efficiency from 1.2 % to 3.0 %.

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Effects of source and substrate temperatures on the properties of ITO/CuPc/C60 heterostructure prepared by physical vapor deposition

Cited by 8 publications

References 26 publications

Effect of electron transport layer materials on the performance of copper phthalocyanine/fullerene heterojunction with function of organic solar cells

Effect of electron transport layer materials on the performance of copper phthalocyanine/fullerene heterojunction with function of organic solar cells

Iron phthalocyanine in non-aqueous medium forming layer-by-layer films: growth mechanism, molecular architecture and applications

Morphological analysis of co-evaporated blend films based on initial growth for organic photovoltaics

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