Simultaneously Enhancing the Jsc and Voc of Ternary Organic Solar Cells by Incorporating a Medium-Band-Gap Acceptor

2021 ◽  
Author(s):  
Min Zhang ◽  
Min Zeng ◽  
Xiong Deng ◽  
Zhijie Zhou ◽  
Xiaoxiao Tan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Medium Band

Over 17.5% Efficiency Ternary Organic Solar Cells with Enhanced Photon Utilization via a Medium Band Gap Non-Fullerene Acceptor

2021 ◽  
Author(s):  
Congcong Cao ◽  
Hanjian Lai ◽  
Hui Chen ◽  
Yulin Zhu ◽  
Mingrui Pu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Light Harvesting ◽  
Photovoltaic Performance ◽  
Photocurrent Generation ◽  
Medium Band

The light harvesting and photocurrent generation from acceptors largely determine the photovoltaic performance of organic solar cells (OSCs). We have designed and prepared two medium band gap non-fullerene acceptors (NFAs),...

scholarly journals Design and synthesis of low band gap non-fullerene acceptors for organic solar cells with impressively high Jsc over 21 mA cm_2

2017 ◽  
Vol 60 (9) ◽  
pp. 819-828 ◽  
Author(s):  
Huan-Huan Gao ◽  
Yanna Sun ◽  
Xiangjian Wan ◽  
Bin Kan ◽  
Xin Ke ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Low Band Gap ◽  
Design And Synthesis

Two-Dimensional BDT-Based Wide Band Gap Polymer Donor for Efficient Non-Fullerene Organic Solar Cells

2017 ◽  
Vol 121 (36) ◽  
pp. 19634-19641 ◽  
Author(s):  
Kai Zhang ◽  
Yunpeng Qin ◽  
Feng Li ◽  
Liangmin Yu ◽  
Mingliang Sun
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Wide Band ◽  
Two Dimensional ◽  
Wide Band Gap

Low Band-Gap Materials for Solar Cells

2021 ◽  
pp. 176-235
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Charge Separation ◽  
Chemical Properties ◽  
Low Energy ◽  
Practical Applications ◽  
Film Forming ◽  
Donor And Acceptor ◽  
Induced Charge

Organic solar cells (OSCs) are discussed at length in terms of its performance leading to the generation of electricity. The key materials required for OSCs are the small organic molecules having donor and acceptor with suitable light absorption and electro-chemical properties of low energy band gap. Various structural scaffolds are highlighted with their structural design leading to film forming in an orderly manner and this morphology of film having a pivotal role in photo-induced charge separation, migration and collection at an electrode. Present day research informs that OSCs involving non fullerene based donors and acceptors are functioning with high photo conversion efficiency [PCE] of >17% and are promising candidates for practical applications.

scholarly journals Planar D-π-A Configured Dimethoxy Vinylbenzene Based Small Organic Molecule for Solution-Processed Bulk Heterojunction Organic Solar Cells

2020 ◽  
Vol 10 (17) ◽  
pp. 5743
Author(s):  
Shabaz Alam ◽  
M. Shaheer Akhtar ◽  
Abdullah ◽  
Eun-Bi Kim ◽  
Hyung-Shik Shin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Power Conversion Efficiency ◽  
Organic Solar Cells ◽  
Organic Molecule ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Solution Processed ◽  
Small Organic Molecule ◽  
Donor Material

A new and effective planar D-π-A configured small organic molecule (SOM) of 2-5-(3,5-dimethoxystyryl)thiophen-2-yl)methylene)-1H-indene-1,3(2H)-dione, abbreviated as DVB-T-ID, was synthesized using 1,3-indanedione acceptor and dimethoxy vinylbenzene donor units, connected through a thiophene π-spacer. The presence of a dimethoxy vinylbenzene unit and π-spacer in DVB-T-ID significantly improved the absorption behavior by displaying maximum absorbance at ~515 nm, and the reasonable band gap was estimated as ~2.06 eV. The electronic properties revealed that DVB-T-ID SOMs exhibited promising HOMO (−5.32 eV) and LUMO (−3.26 eV). The synthesized DVB-T-ID SOM was utilized as donor material for fabricating solution-processed bulk heterojunction organic solar cells (BHJ-OSCs) and showed a reasonable power conversion efficiency (PCE) of ~3.1% with DVB-T-ID:PC61BM (1:2, w/w) active layer. The outcome of this work clearly reflects that synthesized DVB-T-ID based on 1,3-indanedione units is a promising absorber (donor) material for BHJ-OSCs.

Narrow band-gap oligomer for solution-processed heterojunction organic solar cells

2008 ◽  
Vol 158 (3-4) ◽  
pp. 125-129 ◽  
Author(s):  
Mingliang Sun ◽  
Li Wang ◽  
Bin Du ◽  
Yan Xiong ◽  
Ransheng Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Narrow Band ◽  
Solution Processed
Sign in / Sign up

Export Citation Format

Share Document