Nanoscale study of MoSe2/poly(3-hexylthiophene) bulk heterojunctions for hybrid photovoltaic applications

Letertre, Laurie; Douhéret, Olivier; Bougouma, Moussa; Doneux, Thomas; Lazzaroni, Roberto; Buess‐Herman, C.; Leclère, Philippe

doi:10.1016/j.solmat.2015.08.027

Cited by 11 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Here, a cAFM probe in contact with the sample surface acts as a local electrode that collects the solar cell’s dark (cAFM) and/or light-generated current (pcAFM). This mature method has been widely used to image a variety of materials for solar cells, such as perovskites, − thin-film polcrystallines, ,, and others. − One pressing question that cAFM can help answer is “What is the specific role of the CdCl 2 treatment on the electrical properties of CdTe solar cells?” It has been ubiquitously demonstrated, at a macroscopic level, that the CdCl 2 improves PV performance by passivating the CdTe grains and interfaces; − yet, resolving how it affects the local electrical signal is still not well understood. Thus, cAFM has been applied to elucidate how this extra fabrication step enhances CdTe performance; see Figure d .…”

mentioning

confidence: 99%

Imaging Energy Harvesting and Storage Systems at the Nanoscale

2017

View full text Add to dashboard Cite

Our scientific understanding of the nanoscale world is continuously growing ever since atomic force microscopy (AFM) has enabled us to “see” materials at this length scale. Beyond morphology, functional imaging is becoming standard practice as new AFM-based techniques are continuously extending its capabilities. Resolving material properties with high spatial accuracy is now extremely critical as future next-generation energy harvesting and storage systems are comprised of complex and intricate nanoscale features. Here, we review recent research discoveries that implemented AFM methods to measure and determine how the electrical, chemical, and/or optical properties influence the overall device behavior. We dedicate a portion of this Review to perovskite solar cells, which are of primary interest to photovoltaic research, and highlight the remarkable progress made toward understanding and controlling their instabilities. We conclude with a summary and outlook anticipating the most pressing materials-related challenges associated with solar cells and batteries and how that will likely be overcome in the near future by nanoimaging through AFM.

show abstract

mentioning

confidence: 99%

Imaging Energy Harvesting and Storage Systems at the Nanoscale

2017

View full text Add to dashboard Cite

show abstract

“…explored the potential of Nb‐doped MoSe 2 mixed with p‐type P3HT as an inorganic electron acceptor in OSCs. [ 202 ] Scanning spreading resistance microscopy (SSRM) measurements indicated that 0.01% of Mo atoms in MoSe 2 were substituted by Nb atoms, exhibiting n‐type behavior. Characterization using PhotoConductive‐Atomic Force Microscopy (PC‐AFM) revealed the intrinsic photoelectric effect of Nb‐doped MoSe 2 in the MoSe 2 :P3HT blend, with a negative photocurrent of ≈16 pA, indicating effective charge separation and collection of photogenerated excitons in the material.…”

Section: Tmdcs‐based Mix‐dimensional Photovoltaicmentioning

confidence: 99%

Emerging Frontiers of 2D Transition Metal Dichalcogenides in Photovoltaics Solar Cell

Zhou,

Lv,

Tan

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Two‐dimensional (2D) transition metal dichalcogenides (TMDCs) have gained much attention due to their excellent electronic and optoelectronic properties. The reasonable band gap, higher light‐matter interaction, hundreds of categories as well as wafer‐scale growth and Si‐compatible fabrication etc. proof their immense potential for next‐generation solar cells. Over the past years, a variety of specific device structure are investigated including multi‐field tunable 2D TMDCs‐based photovoltaic solar cell since its electronic structure is easily tunable. Their work function distributes in a wide range which facilitate interfacial modulation and optimize the electron/hole transfer layer in perovskite‐/organic‐based photovoltaic solar cell. In this review, the recent developments of TMDCs in photovoltaic solar cell are comprehensively described. First, the energy diagram of traditional semiconductor and 2D TDMCs are discussed. Then, 2D TMDCs‐based photovoltaic solar cell is introduced considering the homojunction, heterojunction and Schottky‐junction as well as their multi‐field tunability. Third, the role of 2D TMDCs layer as photosensitive layer and modifying layer in silicon‐based solar cells, as well as their applications in perovskite‐/organic‐based solar cells are summarized considering their role of electron/hole transfer layer or active layer. Lastly, the prospect for future materials, device and process trends and practical applications of TMDCs‐based photovoltaic solar cell are presented.

show abstract

“…In contrast, PFT's nonresonant tapping has contact times of ∼0.1 ms, enabling conductivity measurements on soft and fragile samples. [33][34][35] In addition, C-AFM offers the possibility of measuring the current-voltage behavior of the sample at every pixel, generating large multidimensional datasets.…”

Section: Introductionmentioning

confidence: 99%

Atomic force microscopy: Emerging illuminated and operando techniques for solar fuel research

Mueller

et al. 2020

The Journal of Chemical Physics

View full text Add to dashboard Cite

Integrated photoelectrochemical devices rely on the synergy between components to efficiently generate sustainable fuels from sunlight. The micro-and/or nanoscale characteristics of the components and their interfaces often control critical processes of the device, such as charge-carrier generation, electron and ion transport, surface potentials, and electrocatalysis. Understanding the spatial properties and structure-property relationships of these components can provide insight into designing scalable and efficient solar fuel components and systems. These processes can be probed ex situ or in situ with nanometer-scale spatial resolution using emerging scanning-probe techniques based on atomic force microscopy (AFM). In this Perspective, we summarize recent developments of AFM-based techniques relevant to solar fuel research. We review recent progress in AFM for (1) steady-state and dynamic light-induced surface photovoltage measurements;(2) nanoelectrical conductive measurements to resolve charge-carrier heterogeneity and junction energetics; (3) operando investigations of morphological changes, as well as surface electrochemical potentials, currents, and photovoltages in liquids. Opportunities for research include: (1) control of ambient conditions for performing AFM measurements; (2) in situ visualization of corrosion and morphological evolution of electrodes; (3) operando AFM techniques to allow nanoscale mapping of local catalytic activities and photo-induced currents and potentials.

show abstract

Nanoscale study of MoSe2/poly(3-hexylthiophene) bulk heterojunctions for hybrid photovoltaic applications

Cited by 11 publications

References 21 publications

Imaging Energy Harvesting and Storage Systems at the Nanoscale

Imaging Energy Harvesting and Storage Systems at the Nanoscale

Emerging Frontiers of 2D Transition Metal Dichalcogenides in Photovoltaics Solar Cell

Atomic force microscopy: Emerging illuminated and operando techniques for solar fuel research

Contact Info

Product

Resources

About