Novel use of nanodiamonds as light-scattering material in dye-sensitized solar cells

Tafti, Mohammad Hadi Karimi; Sadeghzadeh, Seyed Mohammad

doi:10.1007/s10854-016-4417-5

Cited by 12 publications

(5 citation statements)

References 26 publications

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“…Substituting organic acceptor in OPV with inorganic nanoparticles can bring the benefits as well, namely (1) improvement of optoelectronic stability of the solar cells; (2) enhancement of the light absorption range by changing the size or surface chemistry of the nanoparticle and consequently, its bandgap; (3) enhanced light scattering with subsequently enhanced light absorption 11 , 12 ; (4) enhancement of the light-harvesting since the rate of the photoinduced charges transfer in the inorganic material is of a picosecond order and faster than their recombination rate; (5) morphology of the inorganic materials is tailorable to produce simultaneously efficient exciton dissociation interfaces and free charge-transporting pathways 13 , 14 ; (6) inexpensive fabrication cost. In this respect, the different forms of carbon have been under investigation for the role of electron acceptor in OPV 15 – 17 .…”

Section: Introductionmentioning

confidence: 99%

Nanodiamond surface chemistry controls assembly of polypyrrole and generation of photovoltage

Miliaieva

Matunová

Čermák

et al. 2021

Sci Rep

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Nanoscale composite of detonation nanodiamond (DND) and polypyrrole (PPy) as a representative of organic light-harvesting polymers is explored for energy generation, using nanodiamond as an inorganic electron acceptor. We present a technology for the composite layer-by-layer synthesis that is suitable for solar cell fabrication. The formation, pronounced material interaction, and photovoltaic properties of DND-PPy composites are characterized down to nanoscale by atomic force microscopy, infrared spectroscopy, Kelvin probe, and electronic transport measurements. The data show that DNDs with different surface terminations (hydrogenated, oxidized, poly-functional) assemble PPy oligomers in different ways. This leads to composites with different optoelectronic properties. Tight material interaction results in significantly enhanced photovoltage and broadband (1–3.5 eV) optical absorption in DND/PPy composites compared to pristine materials. Combination of both oxygen and hydrogen functional groups on the nanodiamond surface appears to be the most favorable for the optoelectronic effects. Theoretical DFT calculations corroborate the experimental data. Test solar cells demonstrate the functionality of the concept.

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Section: Introductionmentioning

confidence: 99%

Nanodiamond surface chemistry controls assembly of polypyrrole and generation of photovoltage

Miliaieva

Matunová

Čermák

et al. 2021

Sci Rep

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“…It has been reported the ND could act as a light scattering material to improve the photon absorption and PCE of solar cells. 36 Here, we suggested that the ND particles falling into the pinholes of CsPbIBr 2 film also played the role of light scatterer, which led to the enhancement of light absorption and improvement of J SC in ND modified CsPbIBr 2 PSCs, while their higher V OC and FF should be explained from the perspective of carrier transport and recombination. Besides the PL results in Figure 1 The detailed extraction models and mechanism can be found in our previous works.…”

Section: Resultsmentioning

confidence: 76%

“…Particularly, in comparison with the control sample, the ND modified CsPbIBr 2 films showed a remarkable improvement of light absorption in the wavelength range from 350 to 600 nm, which also related to the size of ND particles, and the CsPbIBr 2 film modified with W0.5-ND (largest size) displayed the strongest light absorption ability. This could be understood by the light scattering effect of ND particles embedded into the CsPbIBr 2 film, which was helpful to enhance the light absorption of CsPbIBr 2 PSCs and increase their short-circuit current density ( J SC ). In Figure c,d, the ND -modified CsPbIBr 2 samples showed lower intensity of steady-state PL peaks and shorter decay time in the time-resolved PL spectra, which demonstrated the faster carrier extraction and lesser carrier recombination.…”

Section: Results and Discussionmentioning

confidence: 99%

“…Carbon nanostructures, including fullerene, nanotubes, nanodots, nanoribbons, quantum dots, and nanodiamond (ND), have been investigated for solar cell applications. − Among them, ND particles usually have a size ranging from several nanometers to hundreds of nanometers; their outstanding properties of optical, electrical, thermal, and mechanical characteristics, the surface structure tunability, biocompatibility, and chemical stability have enabled promising applications such as tribology and lubrication, nanocomposites, biomedical imaging, drug delivery, light-energy conversion, and so on. , In photovoltaic systems of organic, dye-sensitized, and silicon solar cells, ND particles have been used as light scattering materials, which could enhance the light absorption in solar cells by reflecting the incident light to prolong and increase its traveling distance in photoactive layer. The NDs/zinc nanocomposite has been successfully used as a counter electrode of DSSCs to improve the catalytic activity and device efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Simple and Convenient Interface Modification by Nanosized Diamond for Carbon Based All-Inorganic CsPbIBr₂ Solar Cells

Tian

Fan

Wang

et al. 2021

ACS Appl. Energy Mater.

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In this work, a simple and convenient interface modification by nanosized diamond (ND) was used in the carbon based all-inorganic CsPbIBr 2 planar perovskite solar cells (PSCs). Only by spin-coating ND particles on the crystallized perovskite without further treatment did all CsPbIBr 2 PSCs achieve an overall improvement in photovoltaic performance. The champion PCE of ND modified PSC reached 9.07%, 22% higher than the control device (7.46%), and remained at 86% of its original value after 50 days. Particularly, the device obtained a V OC beyond 1.30 V and FF over 60% at the same time, which is superior to most of the reported CsPbIBr 2 PSCs. The results of light absorption, PL spectra, TPC, TPV, and electrochemical analysis revealed that the superior device performance mainly came from the improved light absorption and reduced carrier recombination in PSCs. Therefore, the ND provides a facile strategy to enhance the performance of CsPbIBr 2 PSCs.

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“…33 This chemical versatility would allow us to further elaborate on the basic structure we show to ensure efficient and time-stable charge separation. Within light capture, nanodiamonds have attracted considerable interest as material for solar cells, 34 including applications as anodes, 35 ptype semiconductor 36 in OSC, and light-scattering material 37 in dye-sensitized solar cells (DSSCs).…”

mentioning

confidence: 99%

Trap-Door-Like Irreversible Photoinduced Charge Transfer in a Donor–Acceptor Complex

Medrano

Sánchez

2018

J. Phys. Chem. Lett.

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For efficient conversion of light into useful energy sources, it is very important to study and describe the first steps of primary charge-transfer process in natural structures and artificial devices. The time scale of these processes in artificial photosynthetic and photovoltaic devices is on the order of femto- to picoseconds and involves vibronic coupling of electrons and nuclei and also nuclear alleviation to enhance charge separation. Here we present an atomistic description of the photoexcited electron dynamics in a noncovalently bonded system formed by an hydrogenated nanodiamond as donor and a perylene diimide as an acceptor. The complex shows extremely fast charge transfer, separation, and stabilization within 90 fs. This stabilization is purely electronic in nature. To the best of our knowledge, these results show for the first time that it is possible to stabilize charge without polaron formation or nuclear relaxation, reaching a steady state enhanced by a pure electronic reorganization.

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Novel use of nanodiamonds as light-scattering material in dye-sensitized solar cells

Cited by 12 publications

References 26 publications

Nanodiamond surface chemistry controls assembly of polypyrrole and generation of photovoltage

Nanodiamond surface chemistry controls assembly of polypyrrole and generation of photovoltage

Simple and Convenient Interface Modification by Nanosized Diamond for Carbon Based All-Inorganic CsPbIBr₂ Solar Cells

Trap-Door-Like Irreversible Photoinduced Charge Transfer in a Donor–Acceptor Complex

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Novel use of nanodiamonds as light-scattering material in dye-sensitized solar cells

Cited by 12 publications

References 26 publications

Nanodiamond surface chemistry controls assembly of polypyrrole and generation of photovoltage

Nanodiamond surface chemistry controls assembly of polypyrrole and generation of photovoltage

Simple and Convenient Interface Modification by Nanosized Diamond for Carbon Based All-Inorganic CsPbIBr2 Solar Cells

Trap-Door-Like Irreversible Photoinduced Charge Transfer in a Donor–Acceptor Complex

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Simple and Convenient Interface Modification by Nanosized Diamond for Carbon Based All-Inorganic CsPbIBr₂ Solar Cells