A comparative study on properties of two phenoxazine-based dyes for dye-sensitized solar cells
摘要:
Two phenoxazine (POZ)-based organic D-pi-A sensitizers (POZ-1 and POZ-2) were synthesized. Then these two dyes were applied in dye-sensitized solar cells (DSSCs) to investigate the influence of different conjugated direction, extra phenyl ring and alkyl chain on the light-harvesting, energy level and photovoltaic properties through a joint spectral, electrochemical and photovoltaic study. The result shows that dye POZ-2 exhibits higher power conversion efficiency (eta = 6.5%) than dye POZ-1 (eta = 2.4%) under standard illumination (Global Air Mass 1.5). Besides, the geometries of the dyes were optimized to gain insight into the molecular structure and electron distribution. The charge extraction and transient photovoltage decay measurements were further performed to understand the alterative order of efficiency. (C) 2013 Elsevier Ltd. All rights reserved.
申请人:Lapto Co., Ltd. 주식회사 랩토(120120213992) Corp. No ▼ 131111-0274298BRN ▼129-86-56546
公开号:KR102279134B1
公开(公告)日:2021-07-19
일 실시예의 유기 전계 발광 소자는 제1 전극, 제2 전극, 및 제1 전극과 제2 전극 사이에 배치된 발광층을 포함하고, 발광층은 하기 화학식 1로 표시되는 화합물을 포함하여 높은 발광 효율 특성 및 개선된 수명 특성을 나타낼 수 있다. [화학식 1] (상기 화학식 1에서 각 치환기들은 발명의 상세한 설명에서 정의한 바와 같다.)
A general route for synthesis of N-aryl phenoxazines via copper(<scp>i</scp>)-catalyzed N-, N-, and O-arylations of 2-aminophenols
作者:Nan Liu、Bo Wang、Wenwen Chen、Chulong Liu、Xinyan Wang、Yuefei Hu
DOI:10.1039/c4ra09593f
日期:——
copper(I)-catalyzed tandemreaction of N- and O-arylations of 2-[N-(2-chlorophenyl)amino]phenols was developed, by which a series of structurally novel N-aryl phenoxazines were synthesized efficiently. This success owes much to the discovery of highly efficient homogeneous copper(I)-catalyzed intramolecular O-arylation of chlorobenzenes under ligand-free-like conditions. Since 2-[N-(2-chlorophenyl)amino]phenols