Journal ArticleDOI
A review on triphenylamine (TPA) based organic hole transport materials (HTMs) for dye sensitized solar cells (DSSCs) and perovskite solar cells (PSCs): evolution and molecular engineering
Pooja Agarwala,Dinesh Kabra +1 more
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In this paper, the important features of triphenylamine (TPA) based organic hole transport materials (HTMs) in accordance with their structural diversities are discussed from their evolution to recent advancements.Abstract:
In this review article, the important features (optical, thermal and electrochemical) of triphenylamine (TPA) based organic hole transport materials (HTMs) in accordance with their structural diversities are discussed from their evolution to recent advancements. The literature here covers past and ongoing work mostly relevant to HTMs used in DSSCs and PSCs. Besides the good optical properties and high hole mobility, the stability of the amorphous state of the HTM layer is a crucial factor in the commercialization of PSCs. The stability of the amorphous glassy state of HTMs is defined by an important physical parameter, i.e., the glass transition temperature (Tg) which is discussed on the basis of the molecular structure of HTMs.read more
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Dopant-Free Small-Molecule Hole-Transporting Material for Inverted Perovskite Solar Cells with Efficiency Exceeding 21.
Yang Wang,Yang Wang,Wei Chen,Wei Chen,Lei Wang,Bao Tu,Tian Chen,Bin Liu,Kun Yang,Chang Woo Koh,Xianhe Zhang,Huiliang Sun,Guocong Chen,Xiyuan Feng,Han Young Woo,Aleksandra B. Djurišić,Zhubing He,Xugang Guo +17 more
TL;DR: Two novel donor-acceptor-type SM-HTMs (MPA-BTI and MPA-BTTI) are devised, which synergistically integrate several design principles for high-performance HTMs, and exhibit comparable optoelectronic properties but distinct molecular configuration and film properties, enabling a remarkable efficiency of 21.17% in inverted PVSCs.
Journal ArticleDOI
Doping strategies for small molecule organic hole-transport materials: impacts on perovskite solar cell performance and stability
Tracy H. Schloemer,Jeffrey A. Christians,Jeffrey A. Christians,Joseph M. Luther,Alan Sellinger,Alan Sellinger +5 more
TL;DR: Dopants for small molecule-based organic hole-transport layers impact both perovskite solar cells initial performance and long-term stability.
Journal ArticleDOI
Development of Dopant-Free Organic Hole Transporting Materials for Perovskite Solar Cells
TL;DR: In this article, a review of dopant-free organic hole transporting materials for perovskite solar cells (PSCs) is presented, outlining reports of structures with promising properties toward achieving low-cost, effective, and scalable materials for devices with long-term stability.
Journal ArticleDOI
Toward ideal hole transport materials: a review on recent progress in dopant-free hole transport materials for fabricating efficient and stable perovskite solar cells
TL;DR: In this paper, the authors summarize the recent progress in dopant-free hole transport materials (HTMs) including organic small molecules, polymers, organometallic compounds, and inorganic materials.
References
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TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
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Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
TL;DR: Two organolead halide perovskite nanocrystals were found to efficiently sensitize TiO(2) for visible-light conversion in photoelectrochemical cells, which exhibit strong band-gap absorptions as semiconductors.
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Light-emitting diodes based on conjugated polymers
J. H. Burroughes,Donal D. C. Bradley,Adam R. Brown,R.N. Marks,K. D. Mackay,Richard H. Friend,P. L. Burns,Andrew B. Holmes +7 more
TL;DR: In this article, the authors demonstrate that poly(p-phenylene vinylene), prepared by way of a solution-processable precursor, can be used as the active element in a large-area light-emitting diode.
Journal ArticleDOI
Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites
Michael M. Lee,Joël Teuscher,Tsutomu Miyasaka,Takurou N. Murakami,Takurou N. Murakami,Henry J. Snaith +5 more
TL;DR: A low-cost, solution-processable solar cell, based on a highly crystalline perovskite absorber with intense visible to near-infrared absorptivity, that has a power conversion efficiency of 10.9% in a single-junction device under simulated full sunlight is reported.
Journal Article
Photoelectrochemical cells : Materials for clean energy
TL;DR: In this paper, the authors look into the historical background, and present status and development prospects for photoelectrochemical cells, based on nanocrystalline materials and conducting polymer films.