W-Band ENDOR of Light-Induced PPerAcr Anion Radicals in Double-Crystalline Donor-Bridge-Acceptor P3HT-b-PPerAcr Block Copolymer in Frozen Solution: Experimental and DFT Study

被引：7

作者：

Konkin, A. ^{[1
]}

Ritter, U. ^{[1
]}

Konkin, A. A. ^{[1
,2
]}

Mamin, G. ^{[2
]}

Orlinskii, S. ^{[2
]}

Gafurov, M. ^{[2
]}

Aganov, A. ^{[2
]}

Klochkov, V. ^{[2
]}

Lohwasser, R. ^{[3
]}

Thelakkat, M. ^{[3
]}

Hoppe, H. ^{[4
]}

Scharff, P. ^{[1
]}

机构：

[1] Ilmenau Univ Technol, Inst Micro & Nanotechnol, Gustav Kirchhoff Str 7, D-98693 Ilmenau, Germany

[2] Kazan Fed Univ, Inst Phys, Kremlyovskaya St 18, Kazan 420008, Russia

[3] Univ Bayreuth, Appl Funct Polymers, D-95440 Bayreuth, Germany

[4] Friedrich Schiller Univ Jena, Ctr Energy & Environm Chem, D-07743 Jena, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2018年 / 122卷 / 40期

关键词：

ORGANIC SOLAR-CELLS; PHOTOINDUCED CHARGE SEPARATION; ELECTRON-SPIN-RESONANCE; NON-FULLERENE ACCEPTOR; THIN-FILMS; PHOTOVOLTAIC CELLS; BUILDING-BLOCKS; POLYMER; CONDUCTIVITY; SPECTROSCOPY;

D O I：

10.1021/acs.jpcc.8b05086

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Light-induced W-band electron nuclear double resonance and density functional theory of a spin density distribution study of poly-perylene bisimide acrylate (PPerAcr) anion radicals in double-crystalline donor bridge-acceptor block copolymers (BCPs) are under consideration. Evidence of spin density sharing in the electron acceptor block, mainly distributed on the perylenediimide frame of PPerAcr without delocalization along the pi-stack direction of the PPerAcr block in BCPs, was found at the low (50 K) temperature in frozen o-1,2-dichlorobenzene solution. The electron-hopping frequency between the anion and the nearby neutral PPerAcr of assembled pi-stacks in P3HT-b-PPerAcr BCPs is limited by a frequency of around 10(8) Hz at temperatures below 50 K in the steady-state regime of continuous-wave light illumination.

引用

页码：22829 / 22837

页数：9