Alkyl chain tuning of small molecule acceptors for efficient organic solar cells

K Jiang, Q Wei, JYL Lai, Z Peng, HK Kim, J Yuan, L Ye… - Joule, 2019 - cell.com
The field of organic solar cells has seen rapid developments after the report of a high-
efficiency (15.7%) small molecule acceptor (SMA) named Y6. In this paper, we design and …

Moving Alkyl‐Chain Branching Point Induced a Hierarchical Morphology for Efficient All‐Small‐Molecule Organic Solar Cells

R Zhou, Z Jiang, Y Shi, Q Wu, C Yang… - Advanced Functional …, 2020 - Wiley Online Library
The optimization of bulk heterojunction morphology is one of the most challenging topics in
all‐small‐molecule organic solar cells. Herein, three small molecular donors based on …

Modulation of donor alkyl terminal chains with the shifting branching point leads to the optimized morphology and efficient all-small-molecule organic solar cells

Q Wu, D Deng, R Zhou, J Zhang, W Zou… - … applied materials & …, 2020 - ACS Publications
Terminal group modification is one of the most influential factors for small-molecular donors
compared with their polymer counterparts, resulting in an opportunity to optimize the …

The effect of alkyl chain branching positions on the electron mobility and photovoltaic performance of naphthodithiophene diimide (NDTI)-based polymers

J Yang, N An, S Sun, X Sun, M Nakano… - Science China …, 2019 - Springer
Conjugated polymers are widely used in organic optoelectronic devices due to their solution
processability, thermal stability and structural diversity. Generally, alkyl side chains must be …

Efficiency exceeding 11% in tandem polymer solar cells employing high open‐circuit voltage wide‐bandgap π‐conjugated polymers

S Song, K Kranthiraja, J Heo, T Kim… - Advanced Energy …, 2017 - Wiley Online Library
The emerging field of tandem polymer solar cells (TPSCs) enables a feasible approach to
deal with the fundamental losses associated with single‐junction polymer solar cells (PSCs) …

Control of Charge Dynamics via Use of Nonionic Phosphonate Chains and Their Effectiveness for Inverted Structure Solar Cells

G Kim, S Song, J Lee, T Kim, TH Lee… - Advanced Energy …, 2015 - Wiley Online Library
Considering that a high compatibility at hybrid organic/inorganic interfaces can be achieved
using polar and hydrophilic functionalities, this approach is used to improve inverted …

Effect of solvent on the interfacial crystallinity in sequentially processed organic solar cells

J Ko, J Kim, HJ Song, Y Park, J Kwak… - Advanced Materials …, 2021 - Wiley Online Library
It is important to specify and control factors that significantly affect the performance and
stability of organic solar cells (OSCs). Bulk heterojunctions (BHJs) prepared by spin‐coating …

Squaraine‐Based Polymers: Toward Optimized Structures for Optoelectronic Devices

A Broggi, H Kim, J Jung, MP Bracciale… - Macromolecular …, 2017 - Wiley Online Library
A novel polymer semiconductor based on squaric acid is successfully prepared through
polycondensation reaction. Physicochemical properties of polysquaraine are explored by …

Influence of the crystalline nature of small donors molecules on the efficiency and stability of organic photovoltaic devices

KC Lee, NG An, SM Lee, J Heo, DS Kim, JY Kim… - Solar Rrl, 2018 - Wiley Online Library
Small‐molecule‐based organic photovoltaic (OPV) devices have gained attention because
they offer more batch‐to‐batch consistency than their polymer‐based counterparts. Herein …

Molecular engineering to improve carrier lifetimes for organic photovoltaic devices with thick active layers

SD Oosterhout, WA Braunecker, ZR Owczarczyk… - Organic …, 2017 - Elsevier
The morphology of the bulk heterojunction absorber layer in an organic photovoltaic (OPV)
device has a profound effect on the electrical properties and efficiency of the device …