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These results provide guidance for the general use of multiple-donor bulk heterojunctions to overcome the absorption limitation and achieve both high performance and fabrication simplicity for organic solar cells. The use of carefully selected multiple donor polymers is shown to improve the performance of polymer solar cells.
In bulk-heterojunction (BHJ) organic solar cells, the absorbed incident photons generate tightly bound electron–hole pairs, which then dissociate into electrons and holes at the nearby donor/acceptor interface. The electrons and holes are then transported to their respective electrodes 6, 7, 8.
Conventional bulk-heterojunction (BHJ) solar cells based on SdiPBI-S and the wide-band-gap polymer PDBT-T1 show a high power conversion efficiency (PCE) of 7.16% with a high open-circuit voltage of 0.90 V, a high short-circuit current density of 11.98 mA/cm 2, and an impressive fill factor of 66.1%.
We conclude that structural compatibility is the key factor for achieving high performance in multiple-donor BHJ polymer solar cells. Indications of compatibility between polymers include preferred molecular orientation, crystallite size and domain structure, among others.
Within the past five years, there have been over 100 nonfullerene acceptor molecules synthesized, and the power conversion efficiency of nonfullerene organic solar cells has increased dramatically, from ∼2% in 2012 to >13% in 2017.
Large-area printing fabrication is a distinctive feature of organic solar cells (OSCs). However, the advance of upscalable fabrication is challenged by the thickness of organic active layers considering the importance of both exciton dissociation and charge collection.
DOI: 10.1016/J.EGYPRO.2012.11.164 Corpus ID: 108563758; Heterogeneous Nanoscale Morphology in Cross-Sections of Bulk Heterojunction Polymer Solar Cells Visualized by …
Enhanced power conversion efficiency of P3HT: PC71BM bulk heterojunction polymer solar cells by doping a high-mobility small organic molecule
The solar cell with a heterogeneous FASnI 3 absorber is ultrastable, maintaining over 13% efficiency after operation under 1-sun illumination for 1,000 h in air. Abstract Lead …
Bulk heterojunction perovskite solar cells based on n-type Cs 0.15 FA 0.85 PbI 3 (where FA is formamidinium) incorporated with p-type low optical gap conjugated polymer …
Conventional bulk-heterojunction (BHJ) solar cells based on SdiPBI-S and the wide-band-gap polymer PDBT-T1 show a high power conversion efficiency (PCE) of 7.16% …
In this work, a bulk-heterojunction-buried (buried-BHJ) structure is introduced by sequential deposition to realize efficient exciton dissociation and charge collection, thereby …
The bulk-heterojunction (BHJ) system that uses a π-conjugated polymer as an electron donor, and a fullerene derivative as an electron acceptor, is widely used in organic solar cells (OSCs) to facilitate efficient charge …
The mechanical properties of bulk-heterojunction (BHJ) films play critical roles in the operational stability of flexible polymer solar cells (PSCs). In this study, the multi-scale …
Request PDF | Nanoscale heterogeneous distribution of surface energy at interlayers in organic bulk-heterojunction solar cells | Surface energy of the underneath …
Heterogeneous 2D/3D Tin‐Halides Perovskite Solar Cells with Certified Conversion Efficiency Breaking 14% ... tin-halides based perovskite solar cells still suffer from …
Organic photovoltaic (OPV) devices, made with semiconducting polymers, have recently attained a power conversion efficiency (PCE) over 14% in single junction cells …
4 · The α-to-δ phase transition and lattice defects pose significant challenges to the long-term stability of methylammonium (MA)/bromide (Br)-free formamidinium (FA)-based …
Solution-processed organic bulk-heterojunction (BHJ) solar cells (OSCs) show unique advantages in light weight, mechanical flexibility, and low-cost production. The …
Here, several dual-donor and multi-donor bulk-heterojunction polymer solar cells based on a pool of materials with different absorption ranges and preferred molecular …
MASCN was found to react with PbI 2 to form a perovskite intermediate phase which effectively promotes phase purity of α-FAPbI 3 in (MAFA)Pb(IBr) 3 and reduce bulk …
Conventional bulk-heterojunction (BHJ) solar cells based on SdiPBI-S and the wide-band-gap polymer PDBT-T1 show a high power …
In this work, a bulk-heterojunction-buried (buried-BHJ) structure is introduced …
In this article we review the recent state of the art development of bulk heterojunction hybrid solar cells. Critical factors limiting the solar cell device performance are highlighted and strategies …
DOI: 10.1016/j.joule.2021.09.001 Corpus ID: 244247135; Nanoscale heterogeneous distribution of surface energy at interlayers in organic bulk-heterojunction solar cells …
Here, several dual-donor and multi-donor bulk-heterojunction polymer solar cells based on a pool of materials with different absorption ranges and preferred molecular structures were studied.
Transient Electron Spin Polarization Imaging of Heterogeneous Charge-Separation Geometries at Bulk-Heterojunction Interfaces in Organic Solar Cells. The Journal …
Enhanced power conversion efficiency of P3HT: PC71BM bulk …
Transient Electron Spin Polarization Imaging of Heterogeneous Charge-Separation Geometries at Bulk-Heterojunction Interfaces in Organic …
Within the past five years, there have been over 100 nonfullerene acceptor molecules synthesized, and the power conversion efficiency of nonfullerene organic solar cells …
Due to their outstanding optoelectronic features, low cost, and easy solution process, hybrid halide perovskites are the most potential next-generation semiconductor material for solar …