Layered bismuth selenide utilized as hole transporting layer for highly stable organic photovoltaics

Yuan, Zhongcheng; Wu, Zhongwei; Bai, Sai; Cui, Wei; Liu, Jie; Song, Tao; Sun, Baoquan

doi:10.1016/j.orgel.2015.07.005

Cited by 12 publications

(17 citation statements)

References 48 publications

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“…Lastly, layered bismuth selenide nanoplatelets (L-Bi 2 Se 3 ) were implemented as the HTL in inverted P3HT:PC 61 BM-based OSCs. 633 The corresponding OSCs reached Z = 4.37%, which was higher than the Z value of OSCs based on evaporated MoO 3 HTL (3.91%). 632 The Z improvement was ascribed to the high conductivity of L-Bi 2 Se 3 .…”

Section: Ctlsmentioning

confidence: 69%

“…Binary PBDB-T-SF:IT-4F and ternary PBDB-T-2F:Y6:PC 71 BM OSCs based on WS 2 as the HTL exhibited an Z value of 15.8% and 17.0%, respectively, which were higher than the corresponding reference OSCs based on PEDOT:PSS, i.e., Z of 13.5% and 16.4%, respectively. 633 The observed performance enhancement was attributed to a reduction in bimolecular recombination losses (i.e., losses determined by the recombination of an electron with a hole, thus directly depending on both electron and hole concentrations) compared to PEDOT:PSS-based OSCs. 633 The lower bimolecular recombination in WS 2 -based devices compared to MoS 2 and PEDOT:PSS devices was ascribed to the deeper f W value of WS 2 on ITO (i.e., 5.5 eV vs. 5.4 eV and 4.8 eV for MoS 2 and PEDOT:PSS on ITO, respectively).…”

Section: Ctlsmentioning

confidence: 99%

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Solution-processed two-dimensional materials for next-generation photovoltaics

et al. 2021

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Section: Ctlsmentioning

confidence: 69%

Section: Ctlsmentioning

confidence: 99%

Solution-processed two-dimensional materials for next-generation photovoltaics

et al. 2021

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“…In addition, a hole transport layer based on solution‐processed MoS 2 nanosheets, exfoliated in a PEDOT:PSS solution and decorated with gold nanoparticles, can also improve device performances. Furthermore, improvements in the PCE of an inverted OPV structure embedded with 2D TMDCs have also been reported …”

Section: Electronic and Optoelectronic Applicationsmentioning

confidence: 88%

“…2D Hole Transport Layer : Since solar cell performances strongly depend on the interface between the light‐harvesting layer and the electrode, latest studies on 2D–organic hybrid PVs were focused extensively on utilizing 2D materials as the electron/hole transport layer . In a conventional OPV structure, a hole transport layer is usually deposited on ITO substrates, which is relatively easier to do than to deposit an electron transport layer on organic active materials.…”

Section: Electronic and Optoelectronic Applicationsmentioning

confidence: 99%

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2D–Organic Hybrid Heterostructures for Optoelectronic Applications

et al. 2019

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The unique properties of hybrid heterostructures have motivated the integration of two or more different types of nanomaterials into a single optoelectronic device structure. Despite the promising features of organic semiconductors, such as their acceptable optoelectronic properties, availability of low-cost processes for their fabrication, and flexibility, further optimization of both material properties and device performances remains to be achieved. With the emergence of atomically thin 2D materials, they have been integrated with conventional organic semiconductors to form multidimensional heterostructures that overcome the present limitations and provide further opportunities in the field of optoelectronics. Herein, a comprehensive review of emerging 2D-organic heterostructures-from their synthesis and fabrication to their state-of-the-art optoelectronic applications-is presented. Future challenges and opportunities associated with these heterostructures are highlighted.solution-processed on any substrate inexpensively and at relatively low temperatures, which is highly advantageous for their scale-up from fundamental studies to industrial-level production. [6][7][8][9][10] Initial examples of developed organic semiconductors include field-effect transistors (FETs), [4,5,[11][12][13][14][15] photodetectors (PDs), [5,16,17] photovoltaics (PVs), [5,16,18,19] light-emitting diodes (LEDs), [5,16,20] and so on. In spite of the demonstration of promising prototypes of organic semiconductors, their development and optimization for highperformance device applications remain a challenge. In particular, it is becoming increasingly difficult to impart suitable properties to individual materials and realize appropriate physical dimensions in order to satisfy increasing demands of multifunctionality for fundamental studies, device designs, and performance optimization. [21,22] Consequently, such challenges and opportunities can be addressed by performing multidimensional integration or hybridization of organic semiconductors with various types of materials having potentially novel functionalities and unique properties.2D van der Waals (vdW) materials are the most obvious candidate for such hybridization with organic semiconductors. [22,23] Since the discovery of graphene, which opened up new avenues ranging from fundamental studies to real-world applications, [24][25][26][27] several other groups of 2D vdW materials have also been discovered, such as hexagonal boron nitride (h-BN), [28,29] transition metal dichalcogenides (TMDCs), [23,[30][31][32][33][34] black phosphorus (BP), [35][36][37][38][39][40] borophene, [41][42][43] silicene, [43] and germanene. [43] The 2D structure has been demonstrated to possess several exceptional electrical, optical, mechanical, and thermal properties vis-à-vis its corresponding bulk counterpart. [22,25,27] Most importantly, from the viewpoint of hybridization with organic semiconductors, the atomically flat and dangling-bond-free surface of 2D vdW materials not only provides an ideal int...

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Inorganic and Hybrid Interfacial Materials for Organic and Perovskite Solar Cells

Palilis

Vasilopoulou

Verykios

et al. 2020

Advanced Energy Materials

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As organic solar cells (OSCs) and perovskite solar cells (PVSCs) move closer to commercialization, further efforts toward optimizing both cell efficiency and stability are needed. As interfaces strongly affect device performance and degradation processes, interfacial engineering by employing various materials as hole transport layers (HTLs) and electron transport layers (ETLs) has been a very active field of research in OSCs and PVSCs. Among them, inorganic materials exhibit significant advantages in promoting device performance due to their excellent charge transporting properties and intrinsic thermal and chemical robustness. In this review, an extensive overview is provided of inorganic semiconductors such as copper‐based ones with emphasis on copper iodide and copper thiocyanate, transition metal chalcogenides, nitrides and carbides as well as hybrid materials based on these inorganic compounds that have been recently employed as HTLs and ETLs in OSCs and PVSCs. Following a short discussion of the main optoelectronic and physical properties that interfacial materials used as HTLs and ETLs should possess, the functionalities of the aforementioned materials as interfacial, charge transport, layers in OSCs and PVSCs are discussed in depth. It is concluded by providing guidelines for further developments that could significantly extend the implementation of these materials in solar cells.

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Layered bismuth selenide utilized as hole transporting layer for highly stable organic photovoltaics

Cited by 12 publications

References 48 publications

Solution-processed two-dimensional materials for next-generation photovoltaics

Solution-processed two-dimensional materials for next-generation photovoltaics

2D–Organic Hybrid Heterostructures for Optoelectronic Applications

Inorganic and Hybrid Interfacial Materials for Organic and Perovskite Solar Cells

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