Supramolecular Donor−Acceptor Heterojunctions by Vectorial Stepwise Assembly of Porphyrins and Coordination-Bonded Fullerene Arrays for Photocurrent Generation

2009 ◽  
Vol 131 (9) ◽  
pp. 3198-3200 ◽  
Author(s):  
Aiko Kira ◽  
Tomokazu Umeyama ◽  
Yoshihiro Matano ◽  
Kaname Yoshida ◽  
Seiji Isoda ◽  
...  
Keyword(s):  
Photocurrent Generation ◽  
Donor Acceptor ◽  
Stepwise Assembly

Improving Photocurrent Generation: Supramolecularly and Covalently Functionalized Single-Wall Carbon Nanotubes-Polymer/Porphyrin Donor-Acceptor Nanohybrids

2008 ◽  
Vol 14 (29) ◽  
pp. 8837-8846 ◽  
Author(s):  
G. M. Aminur Rahman ◽  
Anna Troeger ◽  
Vito Sgobba ◽  
Dirk M. Guldi ◽  
Norbert Jux ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Photocurrent Generation ◽  
Donor Acceptor

Charge Separation in a Nonfluorescent Donor−Acceptor Dyad Derived from Boron Dipyrromethene Dye, Leading to Photocurrent Generation

2005 ◽  
Vol 109 (32) ◽  
pp. 15368-15375 ◽  
Author(s):  
Shigeki Hattori ◽  
Kei Ohkubo ◽  
Yasuteru Urano ◽  
Hisato Sunahara ◽  
Tetsuo Nagano ◽  
...  
Keyword(s):  
Charge Separation ◽  
Photocurrent Generation ◽  
Boron Dipyrromethene ◽  
Donor Acceptor

scholarly journals Correlated Donor/Acceptor Crystal Orientation Controls Photocurrent Generation in All-Polymer Solar Cells

2014 ◽  
Vol 24 (26) ◽  
pp. 4068-4081 ◽  
Author(s):  
Marcel Schubert ◽  
Brian A. Collins ◽  
Hannah Mangold ◽  
Ian A. Howard ◽  
Wolfram Schindler ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystal Orientation ◽  
Polymer Solar Cells ◽  
Photocurrent Generation ◽  
Donor Acceptor

scholarly journals Charge Separation in a Nonfluorescent Donor−Acceptor Dyad Derived from Boron Dipyrromethene Dye, Leading to Photocurrent Generation

2005 ◽  
Vol 109 (40) ◽  
pp. 19042-19042 ◽  
Author(s):  
Shigeki Hattori ◽  
Kei Ohkubo ◽  
Yasuteru Urano ◽  
Hisato Sunahara ◽  
Tetsuo Nagano ◽  
...  
Keyword(s):  
Charge Separation ◽  
Photocurrent Generation ◽  
Boron Dipyrromethene ◽  
Donor Acceptor

Photocurrent generation through electron–exciton interaction at the organic semiconductor donor/acceptor interface

2013 ◽  
Vol 15 (39) ◽  
pp. 16891 ◽  
Author(s):  
Lijia Chen ◽  
Qiaoming Zhang ◽  
Yanlian Lei ◽  
Furong Zhu ◽  
Bo Wu ◽  
...  
Keyword(s):  
Organic Semiconductor ◽  
Exciton Interaction ◽  
Photocurrent Generation ◽  
Donor Acceptor

scholarly journals Towards the Stepwise Assembly of Molecular Borromean Rings. A Donor-Acceptor Ring-in-Ring Complex

2019 ◽  
Vol 53 (3) ◽  
Author(s):  
Ross S. Forgan ◽  
Jason M. Spruell ◽  
John-Carl Olsen ◽  
Charlotte L. Stern ◽  
J. Fraser Stoddart
Keyword(s):  
Borromean Rings ◽  
Stepwise Manner ◽  
Ring Complex ◽  
Donor Acceptor ◽  
Ring Complexes ◽  
Stepwise Assembly

The assembly of molecular Borromean Rings from constitutionally independent rings in a stepwise manner depends on the preparation of robust “ring-in-ring” complexes. The π-electron rich macrocycle bis-1,5-dinaphtho[50]crown-14 (1) is shown to form a donor-acceptor ring-in-ring complex with the π-electron poor cyclophane cyclobis(paraquat-4,4'-biphenylene) (24+) in solution. In the crystal superstructure of [1⊂2]·4PF6, CH···O interactions between the polyether loops of 1 and the bipyridinium units of 24+ could disfavor the threading of dialkylammonium components of a third ring.    

scholarly journals Vibronic coherence contributes to photocurrent generation in organic semiconductor heterojunction diodes

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Qingzhen Bian ◽  
Fei Ma ◽  
Shula Chen ◽  
Qi Wei ◽  
Xiaojun Su ◽  
...  
Keyword(s):  
Charge Separation ◽  
Quantum Coherence ◽  
Transient Absorption ◽  
Excitation Energy Transfer ◽  
Low Frequency ◽  
Decisive Role ◽  
Photosynthetic Reaction Centers ◽  
Photocurrent Generation ◽  
Photocurrent Spectroscopy ◽  
Donor Acceptor

AbstractCharge separation dynamics after the absorption of a photon is a fundamental process relevant both for photosynthetic reaction centers and artificial solar conversion devices. It has been proposed that quantum coherence plays a role in the formation of charge carriers in organic photovoltaics, but experimental proofs have been lacking. Here we report experimental evidence of coherence in the charge separation process in organic donor/acceptor heterojunctions, in the form of low frequency oscillatory signature in the kinetics of the transient absorption and nonlinear two-dimensional photocurrent spectroscopy. The coherence plays a decisive role in the initial ~200 femtoseconds as we observe distinct experimental signatures of coherent photocurrent generation. This coherent process breaks the energy barrier limitation for charge formation, thus competing with excitation energy transfer. The physics may inspire the design of new photovoltaic materials with high device performance, which explore the quantum effects in the next-generation optoelectronic applications.

Prato reaction derived polythiophene/C60 donor–acceptor double cable polymer, fabrication of photodetectors and evaluation of photocurrent generation

2020 ◽  
Vol 8 (48) ◽  
pp. 17365-17373
Author(s):  
Sunniya Iftikhar ◽  
Saba Aslam ◽  
Nauman Zafar Butt ◽  
Raja Shahid Ashraf ◽  
Basit Yameen
Keyword(s):  
Side Chain ◽  
Photoactive Layer ◽  
Photocurrent Generation ◽  
Organic Photodetector ◽  
Donor Acceptor

A polythiophene/C60 D–A covalent hybrid developed via a combination of GRIM polymerization, side chain engineering, and Prato reaction exhibited higher photocurrent generation when used as a photoactive layer in an organic photodetector.

scholarly journals Improving Photocurrent Generation: Supramolecularly and Covalently Functionalized Single-Wall Carbon Nanotubes-Polymer/Porphyrin Donor-Acceptor Nanohybrids

2008 ◽  
Vol 14 (32) ◽  
pp. 9810-9810
Author(s):  
G. M. Aminur Rahman ◽  
Anna Troeger ◽  
Vito Sgobba ◽  
Dirk M. Guldi ◽  
Norbert Jux ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Photocurrent Generation ◽  
Donor Acceptor
Sign in / Sign up

Export Citation Format

Share Document