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

Evidences of photocurrent generation by hole–exciton interaction at organic semiconductor interfaces

2015 ◽  
Vol 26 ◽  
pp. 75-80 ◽  
Author(s):  
Ping Li ◽  
Yu Jun Zhang ◽  
Lun Cai ◽  
Bao Fu Ding ◽  
Jin Xiang ◽  
...  
Keyword(s):  
Organic Semiconductor ◽  
Exciton Interaction ◽  
Semiconductor Interfaces ◽  
Photocurrent Generation

scholarly journals Hysteresis Behavior of the Donor–Acceptor-Type Ambipolar Semiconductor for Non-Volatile Memory Applications

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 301
Author(s):  
Young Jin Choi ◽  
Jihyun Kim ◽  
Min Je Kim ◽  
Hwa Sook Ryu ◽  
Han Young Woo ◽  
...  
Keyword(s):  
Organic Semiconductor ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Memory Device ◽  
Non Volatile Memory ◽  
Device Applications ◽  
Donor Acceptor ◽  
Effect Transistor ◽  
Volatile Memory ◽  
Memory Applications

Donor–acceptor-type organic semiconductor molecules are of great interest for potential organic field-effect transistor applications with ambipolar characteristics and non-volatile memory applications. Here, we synthesized an organic semiconductor, PDPPT-TT, and directly utilized it in both field-effect transistor and non-volatile memory applications. As-synthesized PDPPT-TT was simply spin-coated on a substrate for the device fabrications. The PDPPT-TT based field-effect transistor showed ambipolar electrical transfer characteristics. Furthermore, a gold nanoparticle-embedded dielectric layer was used as a charge trapping layer for the non-volatile memory device applications. The non-volatile memory device showed clear memory window formation as applied gate voltage increases, and electrical stability was evaluated by performing retention and cycling tests. In summary, we demonstrate that a donor–acceptor-type organic semiconductor molecule shows great potential for ambipolar field-effect transistors and non-volatile memory device applications as an important class of materials.

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

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

Polyimide with enhanced π stacking for efficient visible-light-driven photocatalysis

2021 ◽  
Author(s):  
Kelian Zhang ◽  
Hanmei Li ◽  
Haixian Shi ◽  
Wei Hong
Keyword(s):  
Visible Light ◽  
Surface Area ◽  
Organic Semiconductor ◽  
Light Harvesting ◽  
Photocatalytic Efficiency ◽  
Π Stacking ◽  
Visible Light Driven ◽  
Donor Acceptor

The organic semiconductor of polyimide has received considerable attention as a chemically stable donor-acceptor photocatalyst, yet exhibits moderate photocatalytic efficiency which is limited by low surface area, insufficient light harvesting...

scholarly journals Photoconversion Mechanism at the pn-Homojunction Interface in Single Organic Semiconductor

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1727 ◽  
Author(s):  
Ji-Hyun Lee ◽  
Armand Perrot ◽  
Masahiro Hiramoto ◽  
Seiichiro Izawa
Keyword(s):  
Organic Semiconductors ◽  
Organic Semiconductor ◽  
Energy Structure ◽  
Free Charge ◽  
Charge Generation ◽  
Recombination Processes ◽  
Single Host ◽  
Donor Acceptor ◽  
Doping Technique ◽  
Determining Factor

Clarifying critical differences in free charge generation and recombination processes between inorganic and organic semiconductors is important for developing efficient organic photoconversion devices such as solar cells (SCs) and photodetector. In this study, we analyzed the dependence of doping concentration on the photoconversion process at the organic pn-homojunction interface in a single organic semiconductor using the temperature dependence of J–V characteristics and energy structure measurements. Even though the organic pn-homojunction SC devices were fabricated using a single host material and the doping technique resembling an inorganic pn-homojunction, the charge generation and recombination mechanisms are similar to that of conventional donor/acceptor (D/A) type organic SCs; that is, the charge separation happens from localized exciton and charge transfer (CT) state being separated by the energy offset between adjacent molecules, and the recombination happens from localized charge carrier at two adjacent molecules. The determining factor for photoconversion processes is the localized nature of charges in organic semiconductors. The results demonstrated that controlling the delocalization of the charges is important to realize efficient organic photoconversion devices.

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
Sign in / Sign up

Export Citation Format

Share Document