Herein, we demonstrate that a thiophene-modified quinoxaline core small molecule can be applied in Sb(S,Se) solar cells. We reveal that the interaction between thiophene and Sb(S,Se) through the Sb-S bond essentially improves the interfacial hole-extraction ability. This study provides a cost-effective dopant-free hole-transporting material for inorganic thin film solar cell applications with excellent stability.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d1cc07041j | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dopant-Free Spiro-OMe Imidazole-Based Hole-Transporting Material for Stable and Low-Cost Organic-Inorganic Perovskite Solar Cell.
ACS Omega
December 2024
BeDimensional S.p.A., Via Lungotorrente Secca 3D, 16163 Genova, Italy.
The engineering of charge transport materials, with electronic characteristics that result in effective charge extraction and transport dynamics, is pivotal for the realization of efficient perovskite solar cells (PSCs). Herein, we elucidate the critical role of terminal substituent methoxy groups (-OCH) on the bandgap tuning of the spiro-like hole transport materials (HTMs) to realize performant and cost-effective PSCs. By considering spiro-OMeTAD as the benchmark HTM, we kept the backbone of spiro while replacing diphenylamine with phenanthrenimidazole.
View Article and Find Full Text PDFDevelopment of Dopant-Free N,N'-Bicarbazole-Based Hole Transport Materials for Efficient Perovskite Solar Cells.
Int J Mol Sci
December 2024
Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
Efficient and stable hole-transport material (HTM) is essential for enhancing the efficiency and stability of high-efficiency perovskite solar cells (PSCs). The commonly used HTMs such as spiro-OMeTAD need dopants to produce high efficiency, but those dopants degrade the perovskite film and cause instability. Therefore, the development of dopant-free N,N'-bicarbazole-based HTM is receiving huge attention for preparing stable, cost-effective, and efficient PSCs.
View Article and Find Full Text PDFT-Shaped-N-Doped Polycyclic Aromatic Hydrocarbons: A New Concept of Dopant-Free Organic Hole-Transporting Materials for Perovskite Solar Cells.
ACS Appl Mater Interfaces
November 2024
Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland.
Although metal halide perovskites are positioned as the most powerful light-harvesting materials for sustainable energy conversion, there is a need for a thorough understanding of molecular design principles that would guide better engineering of organic hole-transporting materials, which are vital for boosting the performance and stability of perovskite solar cells. To address this formidable challenge, here, we developed a new design strategy based on the curved N-doped polycyclic aromatic hydrocarbon merged with T-shaped phenazines being decorated with (phenyl)-di--methoxyphenylamine (OMeTAD)─N-PAH23/24 and -3,6-ditertbutyl carbazole (TBCz)─N-PAH25/26. As N-PAH23/24 exhibited satisfying thermal stability, the comparative studies performed with various experimental and simulation methods revealed a pronounced correlation between the depth of the central cyclazine core and the form of the T-shape units.
View Article and Find Full Text PDFDopant-Free Hole Transport Material Based on Non-Covalent Interaction for Efficient Perovskite Solar Cells.
Small
December 2024
Chongqing Key Laboratory of Battery Materials and Technologies, School of Materials & Energy, Southwest University, Chongqing, 400715, P.R. China.
Article Synopsis
- * The study introduces two new organic HTMs, DCT and DTC, which utilize intramolecular non-covalent interactions for easier synthesis, with DCT exhibiting better structural planarity and performance due to its hexyloxy chains.
- * DCT achieves impressive results, delivering a high efficiency of 22.50% in PSCs and demonstrating excellent long-term, light, and thermal stability, showcasing the effectiveness of non-covalent interactions in HTM design.
Structurally Compact Penta(N,N-diphenylamino)corannulene as Dopant-free Hole Transport Materials for Stable and Efficient Perovskite Solar Cells.
Angew Chem Int Ed Engl
October 2024
State Key Laboratory for Physical Chemistry of Solid Surfaces, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Department of Chemistry, Xiamen University, Xiamen, Fujian, 361005, China.
Hole transport materials (HTMs) are essential for improving the stability and efficiency of perovskite solar cells (PSCs). In this study, we have designed and synthesized a novel organic small molecule HTM, cor-(DPA), characterized by a bowl-shaped core with symmetric five diphenylamine groups. Compared to already-known HTMs, the bowl-shaped and relatively compact structure of cor-(DPA) facilitates intermolecular π-π interactions, promotes film formations, and enhances charge transport.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!