Physical Origin of the Impact of Different Nanocrystal Surface Modifications on the Performance of CdSe/P3HT Hybrid Solar Cells

Radychev, N. A.; Lokteva, Irina; Witt, F.; Kolny‐Olesiak, Joanna; Borchert, Holger; Parisi, J.

doi:10.1021/jp2040604

Cited by 89 publications

(78 citation statements)

References 55 publications

(119 reference statements)

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“…As a consequence immense effort was put in the development of approaches towards ligand exchange with e.g. pyridine [33,42], other "smaller" amines, such as butylamine [43], or thiols such as t-butylthiol [44,45].…”

Section: In Situ Versus Classical Approachmentioning

confidence: 99%

In situ syntheses of semiconducting nanoparticles in conjugated polymer matrices and their application in photovoltaics.

Rath¹,

Trimmel²

2014

Hybrid Materials

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Hybrid solar cells based on conjugated polymers and inorganic semiconducting nanoparticles combine beneficial properties of organic and inorganic semiconductors and are, therefore, an exciting alternative to pure organic or inorganic solar cell technologies. Several approaches for the fabrication of hybrid solar cells are already elaborated and explored. In the last years routes have emerged, where the nanoparticles are prepared directly in the matrix of the conjugated polymer. Here, the conjugated polymer prevents the nanoparticles from excessive growth and thereby makes additional capping agents obsolete. This review focuses on in situ preparation methods of inorganic semiconducting nanoparticles in conjugated polymers in view of applications in hybrid solar cells. The details, advantages and disadvantages of the different in situ methods are critically examined and put in comparison to the classical route where pre-synthesized nanoparticles are used. Various key factors influencing the solar cell performance as well as future strategies for increasing the overall efficiency of hybrid solar cells prepared via in situ routes are discussed. KeywordsInorganic-organic hybrid solar cell • Nanocomposite • OPV

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Section: In Situ Versus Classical Approachmentioning

confidence: 99%

In situ syntheses of semiconducting nanoparticles in conjugated polymer matrices and their application in photovoltaics.

Rath¹,

Trimmel²

2014

Hybrid Materials

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“…The electrical parameters of the different fabricated solar cells and different source radiation are presented in table (1). These parameters were obtained from(I-V) illuminated characteristics curve as a function of rate time radiation .Finally for most studied solar cells, the short-circuit current density shows a linear relationship with the incident light time intensity (Radychev et al, 2011;Xie, Kolb, Li, Basché, & Mews, 2005). The open-circuit voltage and fill factor is much weaker dependant on the light time intensity (Koster, Mihailetchi, Xie, & Blom, 2005;Ringel, Smith, MacDougal, & Rohatgi, 1991).…”

Section: Impact Of Light Time Intensity On Electrical Performancementioning

confidence: 99%

Ionizing Radiations (Alpha, Beta, Gamma) Effects on CdS / P-Si Heterojunction Solar Cell for Electrical and Optical Properties

El-Amin¹,

Saad²

2017

JMSR

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The effect of ionizing radiations (α,β,γ) in CdS/p-Si heterojunction solar cells are discussed in this paper. The short-circuit current density parameters before γ irradiation conditions have been improved up to 35 mA/cm 2 and after γ irradiation was 30 mA/cm 2 . The open circuit voltage before γ irradiation was 0.59 and 0.565 V after γ irradiation. The limitations of these devices were discussed by investigating the dependence of electrical and efficiency parameters in function of radiation time. The efficiency of the cell before radiation was equal to (11.2%) whenever, after the impact of both α, β and γ was follows, 4.7, 4.9, and 5.1% respectively. The fill factor before and after γ irradiation was 54.5 and 53 %. Studying and analyzing the cells using the I-V, with the change of time rate of γ radiation played a critical role in reducing the efficiency of solar cells. The campaign was carried out with different doses of a series of solar cells by exposing them to different time. The deterioration parameters of CdS/pSi solar cells by γ radiation led to strongly supports the results of minority carrier lifetime, which clearly showed diminishing minority carrier lifetime with increasing radiation dose.

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“…[23][24][25][26] The advent of aqueous-processed polymer/nanocrystals hybrid solar cells becomes an alternative approach to achieve high energy conversion effi ciency. [ 27,28 ] These photovoltaic devices not only consider the green chemistry concept, but also provide different design rules in comparison with their oilsoluble counterparts.…”

Section: Introductionmentioning

confidence: 99%

Unraveling Charge Separation and Transport Mechanisms in Aqueous‐Processed Polymer/CdTe Nanocrystal Hybrid Solar Cells

Wang

Wei

et al. 2014

Advanced Energy Materials

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Recently great progress has been achieved in highly effective hybrid solar cells fabricated using aqueous materials. The state‐of‐the‐art energy conversion efficiency has been close to 5% with high photocurrent. However, charge separation and transport mechanism in the aqueous‐processed hybrid solar cells are rarely reported and are usually assumed to be similar to oil‐phase processed systems; that is, self‐assembly polymers are mainly responsible for charge separation and carrier transport. To date, this assumption has prohibited further improvement of the conversion efficiency in aqueous‐processed hybrid systems by adopting any appropriate technique routes. Here, ultrafast carrier dynamics in these hybrid solar cells consisting of poly(p‐phenylenevinylene) (PPV)‐based aqueous polymers and water‐solution CdTe nanocrystals (NCs) are investigated in detail. Self‐charge separation in grown CdTe NC partly capped CdS shell layers after anneal treatment is unambiguously identified. Different from their oil‐soluble counterparts, these core/shell nanocrystals do not have the restrictions of quantum confinement and surface ligands, form effective charge transport networks, and play a dominant role in the charge separation and carrier transport processes. These findings provide a greater understanding on the fundamental photophysics in aqueous‐processed hybrid systems.

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Physical Origin of the Impact of Different Nanocrystal Surface Modifications on the Performance of CdSe/P3HT Hybrid Solar Cells

Cited by 89 publications

References 55 publications

In situ syntheses of semiconducting nanoparticles in conjugated polymer matrices and their application in photovoltaics.

In situ syntheses of semiconducting nanoparticles in conjugated polymer matrices and their application in photovoltaics.

Ionizing Radiations (Alpha, Beta, Gamma) Effects on CdS / P-Si Heterojunction Solar Cell for Electrical and Optical Properties

Unraveling Charge Separation and Transport Mechanisms in Aqueous‐Processed Polymer/CdTe Nanocrystal Hybrid Solar Cells

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