| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Kumar, Anil
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Reckoning of antiurolithiatic effect of Flemingia Strobilifera R. BR using ethylene glycol-induced urolithiatic animal model: demystifying traditional medicine
- 2024The interplay effects of digital technologies, green integration, and green innovation on food supply chain sustainable performancecitations
- 2024Laser cladding technology for high entropy alloys: effect and applicationscitations
- 2023Easily processable spin filters: exploring the chiral induced spin selectivity of bowl-shaped chiral subphthalocyaninescitations
- 2023High-Entropy Alloyscitations
- 2023Chirality Versus Symmetry: Electron's Spin Selectivity in Non‐Polar Chiral Lead‐Bromide Perovskitescitations
- 2023Production of nanocellulose from corn husk for the development of antimicrobial biodegradable packaging filmcitations
- 2022Engineering Application of Natural Fibers and Its Properties: A Review
- 2022Fe-based metallic glass composite coatings by HVOF spraying: Influence of Mo on phase evolution, wear and corrosion resistancecitations
- 2022Flexible Interconnected Cu‐Ni Nanoalloys Decorated Carbon Nanotube‐Poly(vinylidene fluoride) Piezoelectric Nanogeneratorcitations
- 2021Controlling phase separation in thermoelectric Pb1-xGexTe to minimize thermal conductivitycitations
- 2020Conductivity and Photoconductivity of a p-Type Organic Semiconductor under Ultrastrong Couplingcitations
- 2020Atomic-level calculations and experimental study of dislocations in InSbcitations
- 2018Phase Evolution and Mechanical Properties of AlCoCrFeNiSix High-Entropy Alloys Synthesized by Mechanical Alloying and Spark Plasma Sinteringcitations
- 2017Effect of regioregularity on recombination dynamics in inverted bulk heterojunction organic solar cellscitations
- 2015Optical and Structural Study of Polyaniline/Polystyrene Composite Filmscitations
- 2015Structural and Morphological Study of PS‐ZnO Nanocomposite Membranecitations
- 2015Structural and Morphological Study of PS‐TiO<sub>2</sub> Nanocomposite Membranescitations
- 2012Design and integrity assessment of high strength tubular structures for extreme loading conditions
Places of action
| Organizations | Location | People |
|---|
article
Effect of regioregularity on recombination dynamics in inverted bulk heterojunction organic solar cells
Abstract
<p>The effect of polymer regioregularity on the charge transport properties and bimolecular recombination rates of polymer-based solar cells is studied in detail using transient photovoltaic techniques. We compare organic solar cells fabricated with an ITO/ZnO/PEIE/P3HT:PCBM/MoO<sub>3</sub>/Ag structure using either 100% regioregular poly(3-hexylthiophene) (DF-P3HT) yielding an average power conversion efficiency (PCE) of 3.8 ± 0.3% or 92% regioregular P3HT (rr-P3HT) that yields an average PCE of 3.28 ± 0.4%. Transient photocurrent measurements reveal the presence of less mobile photoinduced charges in rr-P3HT:PCBM cells when compared to DF-P3HT:PCBM solar cells. Transient photovoltage measurements are used to establish the relationship between regioregularity and bimolecular recombination rate constant (k) finding that under 1 Sun, devices with high regioregularity have a longer τ despite having a higher k. The high value of k for the DF-P3HT:PCBM system as compared to the rr-P3HT:PCBM system is attributed to enhanced mobility and better charge transport of mobile charges in the DF-P3HT:PCBM system, consistent with enhanced fibrillar order in DF-P3HT films observed with transmission electron microscopy. We also note a slight decrease in cell open circuit voltage with increase in polymer regioregularity, which is due to the increase in k. Other recombination mechanisms such as trap-assisted recombination are found to be important in the lower regioregular P3HT device compounded by the reduced mobility and poor inter-chain ordering.</p>