Towards Efficient Integrated Perovskite/Organic Bulk Heterojunction Solar Cells: Interfacial Energetic Requirement to Reduce Charge Carrier Recombination Losses
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202001482
Abstract: Integrated perovskite/organic bulk heterojunction (BHJ) solar cells have the potential to enhance the efficiency of perovskite solar cells by a simple one-step deposition of an organic BHJ blend photoactive layer on top of the perovskite… read more here.
Keywords: bulk heterojunction; organic bulk; integrated perovskite; charge ... See more keywords
Integrated Ideal‐Bandgap Perovskite/Bulk‐Heterojunction Solar Cells with Efficiencies > 24%
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202205809
Abstract: Here, the authors report a highly efficient integrated ideal‐bandgap perovskite/bulk‐heterojunction solar cell (IPBSC) with an inverted architecture, featuring a near infrared (NIR) polymer DTBTI‐based bulk‐heterojunction (BHJ) layer atop guanidinium bromide (GABr)‐modified FA0.7MA0.3Pb0.7Sn0.3I3 perovskite film as… read more here.
Keywords: perovskite; bulk heterojunction; integrated ideal; ideal bandgap ... See more keywords
All‐Polymer Bulk‐Heterojunction Organic Electrochemical Transistors with Balanced Ionic and Electronic Transport
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202206118
Abstract: The rapid development of organic electrochemical transistor (OECTs)‐based circuits brings new opportunities for next‐generation integrated bioelectronics. The all‐polymer bulk‐heterojunction (BHJ) offers an attractive, inexpensive alternative to achieve efficient ambipolar OECTs, and building blocks of logic… read more here.
Keywords: bulk heterojunction; polymer bulk; polymer; organic electrochemical ... See more keywords
Fibrillization of Non‐Fullerene Acceptors Enables 19% Efficiency Pseudo‐Bulk Heterojunction Organic Solar Cells
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202208211
Abstract: The structural order and aggregation of non‐fullerene acceptors (NFA) are critical toward light absorption, phase separation, and charge transport properties of their photovoltaic blends with electron donors, and determine the power conversion efficiency (PCE) of… read more here.
Keywords: organic solar; bulk heterojunction; pseudo bulk; solar cells ... See more keywords
Vertical Miscibility of Bulk Heterojunction Films Contributes to High Photovoltaic Performance
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Materials Interfaces"
DOI: 10.1002/admi.202000577
Abstract: The power conversion efficiencies (PCEs) of organic photovoltaic cells employing donor (polymer):acceptor (small molecule) bulk heterojunction (BHJ) are being rapidly improved. The phase segregation along vertical (film‐depth) direction of the active layer, referring to vertical… read more here.
Keywords: vertical miscibility; miscibility; bulk heterojunction; photovoltaic performance ... See more keywords
Thick‐Film High‐Performance Bulk‐Heterojunction Solar Cells Retaining 90% PCEs of the Optimized Thin Film Cells
Sign Up to like & getrecommendations! Published in 2017 at "Advanced electronic materials"
DOI: 10.1002/aelm.201700007
Abstract: Most optimized, high performance, bulk-heterojunction (BHJ) polymer solar cells have an active layer thickness of about 100 nm. The thin active layer is unfavorable for optical absorption and film coating. This contribution employs a ternary… read more here.
Keywords: bulk heterojunction; pces optimized; film; high performance ... See more keywords
Quantifying Recombination Losses during Charge Extraction in Bulk Heterojunction Solar Cells Using a Modified Charge Extraction Technique
Sign Up to like & getrecommendations! Published in 2017 at "Advanced Energy Materials"
DOI: 10.1002/aenm.201602026
Abstract: A variety of charge extraction (CE) techniques have been developed to measure charge density and recombination coefficients in bulk heterojunction solar cells. Charge recombination during charge extraction as a major limitation of this method has… read more here.
Keywords: bulk heterojunction; charge; charge extraction; recombination ... See more keywords
Recombination Losses Above and Below the Transport Percolation Threshold in Bulk Heterojunction Organic Solar Cells
Sign Up to like & getrecommendations! Published in 2018 at "Advanced Energy Materials"
DOI: 10.1002/aenm.201703339
Abstract: Achieving the highest power conversion efficiencies in bulk heterojunction organic solar cells requires a morphology that delivers electron and hole percolation pathways for optimized transport, plus sufficient donor:acceptor contact area for near unity charge transfer… read more here.
Keywords: organic solar; bulk heterojunction; percolation; transport percolation ... See more keywords
Plasmonic organic bulk–heterojunction solar cells based on hydrophobic gold nanorod insertion into active layers
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Polymer Science"
DOI: 10.1002/app.45920
Abstract: In this work, we fabricated plasmonic organic bulk–heterojunction solar cells by inserting hydrophobic gold nanorods (GNRs) into the active layers. Power conversion efficiency was improved from 7.43% to 8.22% because the plasmonic effect of GNRs… read more here.
Keywords: bulk heterojunction; organic bulk; solar cells; active layers ... See more keywords
Novel Pyrrolo [3,4-b] dithieno [3, 2-f:2",3"-h] quinoxaline-8,10 (9H)-dione Based Wide Bandgap Conjugated Copolymers for Bulk Heterojunction Polymer Solar Cells.
Sign Up to like & getrecommendations! Published in 2022 at "Macromolecular rapid communications"
DOI: 10.1002/marc.202200060
Abstract: Two D-A copolymers consisted of fused ring pyrrolo-dithieno-quinoxaline acceptor are synthesized with different donor units, i.e., benzodithiophene (BDT) with alkylthienyl (P134) and 2-ethylhexyloxy (P117) side chains. These copolymers are used as donor and a narrow… read more here.
Keywords: bulk heterojunction; solar cells; polymer solar; dithieno quinoxaline ... See more keywords
Pt Nanoparticle Assisted Homogeneous Surface Engineering of Polymer-Based Bulk-Heterojunction Photocathodes for Efficient Charge Extraction and Catalytic Hydrogen Evolution.
Sign Up to like & getrecommendations! Published in 2023 at "Small"
DOI: 10.1002/smll.202206763
Abstract: To fabricate a high-efficiency bulk-heterojunction (BHJ)-based photocathode, introducing suitable interfacial modification layer(s) is a crucial strategy. Surface engineering is especially important for achieving high-performance photocathodes because the photoelectrochemical (PEC) reactions at the photocathode/electrolyte interface are… read more here.
Keywords: bulk heterojunction; surface engineering; layer; surface ... See more keywords