scholarly journals Morphology stabilization strategies for small-molecule bulk heterojunction photovoltaics

2017 ◽  
Vol 5 (33) ◽  
pp. 17517-17524 ◽  
Author(s):  
Aiman Rahmanudin ◽  
Xavier A. Jeanbourquin ◽  
Simon Hänni ◽  
Arvindh Sekar ◽  
Emilie Ripaud ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Bulk Heterojunction Photovoltaics ◽  
Thermal Stability Of

Strategies for enhancing the thermal stability of small-molecule organic solar cells are demonstrated and compared with two molecularly engineered additives.

Improved efficiency and thermal stability of ternary all-small-molecule organic solar cells by NCBA as a third component material

Nanoscale ◽  
2018 ◽  
Vol 10 (41) ◽  
pp. 19524-19535 ◽  
Author(s):  
Zhiyong Liu ◽  
Ning Wang
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Photoactive Layer ◽  
Component Material ◽  
Thermal Stability Of

In this work, organic solar cells (OSCs) were fabricated with a blend of PC71BM and p-DTS-(FBTTh2)2 employed as a binary photoactive layer and with a dihydronaphthyl-based C60 bisadduct (NCBA) small-molecule acceptor used as a third component material.

Boosting the photovoltaic thermal stability of fullerene bulk heterojunction solar cells through charge transfer interactions

2017 ◽  
Vol 5 (45) ◽  
pp. 23662-23670 ◽  
Author(s):  
Carr Hoi Yi Ho ◽  
Huanyang Cao ◽  
Yong Lu ◽  
Tsz-Ki Lau ◽  
Sin Hang Cheung ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Charge Transfer ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
Charge Transfer Interaction ◽  
Thermal Stability Of

Charge transfer interaction of a donor polymer with an appropriate 9-fluorenylidene malononitrile derivative in the active layer leads to profoundly enhanced thermal stability of fullerene-based bulk heterojunction organic solar cells.

Analysis of the improved thermal stability of Al-doped ZnO-adopted organic solar cells

2021 ◽  
Vol 118 (2) ◽  
pp. 023302
Author(s):  
Jaehoon Kim ◽  
Yeonkyung Lee ◽  
Jun Young Kim ◽  
Hyung-Jun Song ◽  
Jiyun Song ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Doped Zno ◽  
Thermal Stability Of

Improving the stabilities of organic solar cells via employing a mixed cathode buffer layer

2021 ◽  
Vol 95 (3) ◽  
pp. 30201
Author(s):  
Xi Guan ◽  
Yufei Wang ◽  
Shang Feng ◽  
Jidong Zhang ◽  
Qingqing Yang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thermal Stability ◽  
Solar Cells ◽  
Mixed Layer ◽  
Organic Solar Cells ◽  
Buffer Layers ◽  
Commercial Development ◽  
Conversion Efficiencies ◽  
Thermal Stability Of ◽  
Cathode Buffer Layers

Organic solar cells (OSCs) have been fabricated using cathode buffer layers based on bathocuproine (BCP) and 4,4'-N,N'-dicarbazole-biphenyl (CBP). It is found that despite nearly same power conversion efficiencies, the bilayer of BCP/CBP shows increased thermal stability of device than the monolayer of BCP, mostly because upper CBP thin film stabilizes under BCP thin film. The mixed layer of BCP:CBP gives slightly decreased efficiency than BCP and BCP/CBP, mostly because the electron mobility of the OSC using BCP:CBP is decreased than those using BCP and BCP/CBP. However, the BCP:CBP increases thermal stability of device than BCP and BCP/CBP, ascribed to that the BCP and CBP effectively inhibit reciprocal tendencies of crystallizations in the mixed layer. Moreover, the BCP:CBP improves the light stability of device than the BCP and BCP/CBP, because the energy transfer from BCP to CBP in in the mixed layer effectively decelerates the photodegradation of BCP. We provide a facial method to improve the stabilities of cathode buffer layers against heat and light, beneficial to the commercial development of OSCs.

Furan-bridged thiazolo [5,4-d]thiazole based D–π–A–π–D type linear chromophore for solution-processed bulk-heterojunction organic solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 6286-6293 ◽  
Author(s):  
M. Nazim ◽  
Sadia Ameen ◽  
M. Shaheer Akhtar ◽  
Hyung-Kee Seo ◽  
Hyung-Shik Shin
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Solution Processed ◽  
Organic Chromophore

Novel furan-bridged thiazolo[5,4-d]thiazole based π-conjugated organic chromophore (RFTzR) was formulated and utilized for the fabrication of solution-processed small molecule organic solar cells (SMOSCs).

Phenoxazine-Based Small Molecule Material for Efficient Perovskite Solar Cells and Bulk Heterojunction Organic Solar Cells

2015 ◽  
Vol 5 (8) ◽  
pp. 1401720 ◽  
Author(s):  
Ming Cheng ◽  
Bo Xu ◽  
Cheng Chen ◽  
Xichuan Yang ◽  
Fuguo Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Perovskite Solar Cells

Benzoselenadiazole‐core asymmetric D‐A‐A small molecule for solution processed bulk heterojunction organic solar cells

2020 ◽  
Vol 44 (14) ◽  
pp. 12100-12111
Author(s):  
Abdullah ◽  
Eun‐Bi Kim ◽  
M. Shaheer Akhtar ◽  
Hyung‐Shik Shin ◽  
Sadia Ameen
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Solution Processed

A thermally and mechanically stable solar cell made of a small-molecule donor and a polymer acceptor

2017 ◽  
Vol 5 (30) ◽  
pp. 15923-15931 ◽  
Author(s):  
Sora Oh ◽  
Sachin Badgujar ◽  
Da Hun Kim ◽  
Wang-Eun Lee ◽  
Nasir Khan ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Solar Cell ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Highly Efficient ◽  
Polymer Acceptor ◽  
Thickness Tolerance

Highly efficient and stable BDT2TR:PNDI-2T organic solar cells are investigated. Although this system shows a PCE of 4.43%, significant enhancements are observed in the thermal stability, high thickness tolerance, and flexibility as compared with the PC71BM-based organic solar cells.

Minimizing geminate recombination losses in small-molecule-based organic solar cells

2019 ◽  
Vol 7 (22) ◽  
pp. 6641-6648
Author(s):  
Rafael Sandoval-Torrientes ◽  
Alexey Gavrik ◽  
Anna Isakova ◽  
Abasi Abudulimu ◽  
Joaquín Calbo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Geminate Recombination ◽  
Recombination Rates ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

Geminate recombination rates are successfully predicted for series of small-molecule bulk heterojunction solar cells applying the Marcus–Levich–Jortner equation.

scholarly journals All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Ruimin Zhou ◽  
Zhaoyan Jiang ◽  
Chen Yang ◽  
Jianwei Yu ◽  
Jirui Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Photovoltaic System ◽  
Active Layers ◽  
Donor Acceptor

AbstractThe high efficiency all-small-molecule organic solar cells (OSCs) normally require optimized morphology in their bulk heterojunction active layers. Herein, a small-molecule donor is designed and synthesized, and single-crystal structural analyses reveal its explicit molecular planarity and compact intermolecular packing. A promising narrow bandgap small-molecule with absorption edge of more than 930 nm along with our home-designed small molecule is selected as electron acceptors. To the best of our knowledge, the binary all-small-molecule OSCs achieve the highest efficiency of 14.34% by optimizing their hierarchical morphologies, in which the donor or acceptor rich domains with size up to ca. 70 nm, and the donor crystals of tens of nanometers, together with the donor-acceptor blending, are proved coexisting in the hierarchical large domain. All-small-molecule photovoltaic system shows its promising for high performance OSCs, and our study is likely to lead to insights in relations between bulk heterojunction structure and photovoltaic performance.

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