Green-Solvent-Processable, Dopant-Free Hole-Transporting Materials for Robust and Efficient Perovskite Solar Cells
作者:Junwoo Lee、Mahdi Malekshahi Byranvand、Gyeongho Kang、Sung Y. Son、Seulki Song、Guan-Woo Kim、Taiho Park
DOI:10.1021/jacs.7b04949
日期:2017.9.6
In addition to having proper energy levels and high hole mobility (μh) without the use of dopants, hole-transportingmaterials (HTMs) used in n-i-p-type perovskitesolarcells (PSCs) should be processed using green solvents to enable environmentally friendly device fabrication. Although many HTMs have been assessed, due to the limited solubility of HTMs in green solvents, no green-solvent-processable
Synthesis of diisocyanides with phenolic groups and their polymerization to helically chiral poly(quinoxaline-2,3-diyl)s
作者:Johannes Scholz、Michael Reggelin
DOI:10.1002/pola.27580
日期:2015.6.1
which lead to five new diisocyanide monomers with one or two phenolicgroups is described. Their polymerization behavior is studied with Pd‐ and Ni‐based initiators, as well as under microwave irradiation. The polymerizability is mainly dominated by steric effects as is concluded from experiments using different protecting groups. Chiroptical properties of these new polymers are studied by CD‐spectroscopy
Additional charge transport channels based on non-covalent conformational locks (NCLs) were confirmed via conductance measurement and theoretical simulations.
通过导电测量和理论模拟,确认了基于非共价构象锁定(NCLs)的额外电荷传输通道。
S,N-Heteropentacene based small molecules with A–D–A structure for solution processed organic bulk heterojunction solar cells
作者:Hyeonjun Jo、Sojin Park、Hyeju Choi、Subok Lee、Kihyung Song、S. Biswas、Abhishek Sharma、Ganesh. D. Sharma、Jaejung Ko
DOI:10.1039/c5ra21657e
日期:——
bandgaps and broader absorption profiles to harvest solar photons, as well as suitable electrochemical molecular energy levels for application as donors in bulk heterojunction organic solar cells. The photovoltaic properties of these two small molecules as donors and PC71BM as the acceptor in solution processed bulk heterojunction cells were investigated. Devices based on cast J : PC71BM and K : PC71BM
<scp>Hole‐Transporting</scp> Materials with Rational Combination of Pyridine and Dibenzo[<i>a</i>,<i>c</i>]phenazine as Electron Acceptor for <scp>Dopant‐Free</scp> Perovskite Solar Cells<sup>†</sup>
作者:Weidong Ling、Fei Wu、Wentao Yuan、Linna Zhu、Qianqian Li、Zhen Li
DOI:10.1002/cjoc.202300658
日期:2024.5.15
Perovskitesolarcells (PSCs) have been proven to be a promising option for photovoltaic conversion. With the aim to achieve efficient and stable PSCs, it is essential to explore dopant-free hole-transporting materials (HTMs) with high hole mobility. Herein, HTMs bearing electron donor (D)-electron acceptor (A)-electron donor (D) structures have been constructed with strong intramolecular charge transfer
钙钛矿太阳能电池(PSC)已被证明是光伏转换的一种有前途的选择。为了实现高效稳定的PSC,有必要探索具有高空穴迁移率的无掺杂剂空穴传输材料(HTM)。在此,基于二苯并[ a,c ]吩嗪和吡啶的合理组合,构建了具有强分子内电荷转移(ICT)效应的具有电子供体(D)-电子受体(A)-电子供体( D )结构的HTMs电子受体和钙钛矿层的锚定基团。因此,基于无掺杂剂DPyP的PSC实现了高空穴迁移率(7.31×10 –5 cm 2 ·V –1 ·s –1 )和光电转换效率(20.45%)。它提供了一种通过调整共轭体系的分子构型和电子特性来设计具有高空穴迁移率的HTM的有效方法。