Organic polymeric and small molecular electron acceptors for organic solar cells

A Venkateswararao, SW Liu, KT Wong - Materials Science and …, 2018 - Elsevier
In organic solar cells (OSCs), the electron donor (D) and electron acceptor (A) blended
active layer is the most crucial component for governing the power conversion efficiency …

Novel star-shaped helical perylene diimide electron acceptors for efficient additive-free nonfullerene organic solar cells

M Wu, JP Yi, L Chen, G He, F Chen… - ACS applied materials …, 2018 - ACS Publications
Two star-shaped helical perylene diimide (PDI) electron acceptors TPDI2 and FTPDI2 were
designed and synthesized for nonfullerene organic solar cells (OSCs). The integration of …

Molecular engineering for large open-circuit voltage and low energy loss in around 10% non-fullerene organic photovoltaics

B He, B Yang, MA Kolaczkowski, CA Anderson… - ACS Energy …, 2018 - ACS Publications
Recent efforts in organic photovoltaics (OPVs) have been devoted to obtaining low-bandgap
non-fullerene acceptors (NFAs) for high photocurrent generation. However, the low-lying …

Impact of nonfullerene acceptor core structure on the photophysics and efficiency of polymer solar cells

MA Alamoudi, JI Khan, Y Firdaus, K Wang… - ACS Energy …, 2018 - ACS Publications
Small-molecule “nonfullerene” acceptors are promising alternatives to fullerene
(PC61/71BM) derivatives often used in bulk heterojunction (BHJ) organic solar cells; yet, the …

A three-dimensional thiophene-annulated perylene bisimide as a fullerene-free acceptor for a high performance polymer solar cell with the highest PCE of 8.28% and …

Z Luo, T Liu, W Cheng, K Wu, D Xie, L Huo… - Journal of Materials …, 2018 - pubs.rsc.org
A new propeller-shaped small-molecule acceptor of BPT-S with S-annulated perylene
bisimide (PBI) as peripheral groups was designed and synthesized. Compared to the …

Non-fullerene acceptor engineering with three-dimensional thiophene/selenophene-annulated perylene diimides for high performance polymer solar cells

G Li, S Wang, T Liu, P Hao, Z Liu, F Li… - Journal of Materials …, 2018 - pubs.rsc.org
We report two new propeller-shaped perylene diimide (PDI) acceptors based on
tetraphenylethylene (TPE) as the core and flanked with S/Se-fused PDIs, named as TPE …

Controlling Molecular Weight to Achieve High‐Efficient Polymer Solar Cells With Unprecedented Fill Factor of 79% Based on Non‐Fullerene Small Molecule Acceptor

W Xiong, F Qi, T Liu, L Huo, X Xue, Z Bi, Y Zhang… - Solar …, 2018 - Wiley Online Library
In the fullerene based system, molecular weight (MW) of polymeric donor plays a critical role
in determining the performance of polymer solar cells (PSCs) and higher MW often leads to …

Pyran-annulated perylene diimide derivatives as non-fullerene acceptors for high performance organic solar cells

G Li, Y Zhang, T Liu, S Wang, D Li, J Li, F Li… - Journal of Materials …, 2018 - pubs.rsc.org
There has been growing interest in the effectual strategy of constructing non-fullerene
acceptors for organic solar cells that may overcome the defect of traditional fullerene-based …

n-Type core effect on perylene diimide based acceptors for panchromatic fullerene-free organic solar cells

SH Eom, HS Kim, HJ Do, UH Lee, FTA Wibowo… - Dyes and …, 2018 - Elsevier
Perylene diimide (PDI) based high bandgap acceptors, DTBTP, DTF2BTP, and DTF2TZP,
are synthesized for use in fullerene-free organic solar cells. The two PDI rings are connected …

Probing molecular orientation of P3HT nanofibers in fiber-based organic solar cells

S Yoon, Y Han, I Hwang - Electronic Materials Letters, 2018 - Springer
Molecular orientation of conjugated polymers plays a key role in exciton
generation/separation and charge transport, and thus significantly influence photovoltaic …