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Jatin K. Rath

Bio: Jatin K. Rath is an academic researcher from Utrecht University. The author has contributed to research in topics: Solar cell & Thin film. The author has an hindex of 17, co-authored 45 publications receiving 1945 citations. Previous affiliations of Jatin K. Rath include Indian Institute of Technology Madras.

Papers
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Journal ArticleDOI
TL;DR: In this paper, upconverter materials may be combined with quantum dots or plasmonic particles to enhance the upconversion efficiency and improve the feasibility of applying up-converters in commercial solar cells.
Abstract: Spectral conversion of sunlight is a promising route to reduce spectral mismatch losses that are responsible for the major part of the efficiency losses in solar cells Both upconversion and downconversion materials are presently explored In an upconversion process, photons with an energy lower than the band gap of the solar cell are converted to higher energy photons These higher photons are directed back to the solar cell and absorbed, thus increasing the efficiency Different types of upconverter materials are investigated, based on luminescent ions or organic molecules Proof of principle experiments with lanthanide ion based upconverters have indicated that the benefit of an upconversion layer is limited by the high light intensities needed to reach high upconversion quantum efficiencies To address this limitation, upconverter materials may be combined with quantum dots or plasmonic particles to enhance the upconversion efficiency and improve the feasibility of applying upconverters in commercial solar cells

345 citations

Journal ArticleDOI
TL;DR: In this paper, a near-infrared to visible upconversion phosphor (β-NaYF4:Yb3+ (18%), Er3+(2%)) has been applied at the back of a thin film hydrogenated amorphous silicon (a-Si:H) solar cell in combination with a white back reflector to investigate its response to sub-bandgap infrared irradiation.

245 citations

Journal ArticleDOI
TL;DR: In this article, a review of recent developments in flexible CIGS, CdTe, and a-Si:H solar cells is presented, and the current challenges and solutions to those challenges of using flexible foils, and industrial scenario are reviewed in detail.

226 citations

Journal ArticleDOI
TL;DR: Upconversion by lanthanide compounds in various host materials is discussed and upconversion to work for thin-film silicon solar cells is demonstrated.
Abstract: The possibility to tune chemical and physical properties in nanosized materials has a strong impact on a variety of technologies, including photovoltaics. One of the prominent research areas of nanomaterials for photovoltaics involves spectral conversion. Modification of the spectrum requires down- and/or upconversion or downshifting of the spectrum, meaning that the energy of photons is modified to either lower (down) or higher (up) energy. Nanostructures such as quantum dots, luminescent dye molecules, and lanthanide-doped glasses are capable of absorbing photons at a certain wavelength and emitting photons at a different (shorter or longer) wavelength. We will discuss upconversion by lanthanide compounds in various host materials and will further demonstrate upconversion to work for thin-film silicon solar cells.

209 citations

Journal ArticleDOI
Jatin K. Rath1
TL;DR: In this article, a comprehensive compilation of recent developments in low temperature deposited poly Si films, also known as microcrystalline silicon, is given, where the effect of ions and the frequency of the plasma ignition are discussed in relation to high deposition rate and the desired crystallinity and structure.

202 citations


Cited by
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Journal ArticleDOI
TL;DR: Recent advances at the intersection of plasmonics and photovoltaics are surveyed and an outlook on the future of solar cells based on these principles is offered.
Abstract: The emerging field of plasmonics has yielded methods for guiding and localizing light at the nanoscale, well below the scale of the wavelength of light in free space. Now plasmonics researchers are turning their attention to photovoltaics, where design approaches based on plasmonics can be used to improve absorption in photovoltaic devices, permitting a considerable reduction in the physical thickness of solar photovoltaic absorber layers, and yielding new options for solar-cell design. In this review, we survey recent advances at the intersection of plasmonics and photovoltaics and offer an outlook on the future of solar cells based on these principles.

8,028 citations

Reference EntryDOI
31 Oct 2001
TL;DR: The American Society for Testing and Materials (ASTM) as mentioned in this paper is an independent organization devoted to the development of standards for testing and materials, and is a member of IEEE 802.11.
Abstract: The American Society for Testing and Materials (ASTM) is an independent organization devoted to the development of standards.

3,792 citations

Journal ArticleDOI
Jing Zhou1, Qian Liu1, Wei Feng1, Yun Sun1, Fuyou Li1 

1,679 citations

Journal ArticleDOI
TL;DR: In this article, the authors presented flexible organic solar cells that are less than 2 μm thick, have very low specific weight and maintain their photovoltaic performance under repeated mechanical deformation.
Abstract: Organic solar cells are promising for technological applications, as they are lightweight and mechanically robust. This study presents flexible organic solar cells that are less than 2 μm thick, have very low specific weight and maintain their photovoltaic performance under repeated mechanical deformation.

1,451 citations

Journal ArticleDOI
TL;DR: This review will survey recent progress in the development of spectral converters, with a particular emphasis on lanthanide-based upconversion, quantum-cutting and down-shifting materials, for PV applications, and present technical challenges that arise in developing cost-effective high-performance solar cells based on these luminescent materials.
Abstract: Photovoltaic (PV) technologies for solar energy conversion represent promising routes to green and renewable energy generation. Despite relevant PV technologies being available for more than half a century, the production of solar energy remains costly, largely owing to low power conversion efficiencies of solar cells. The main difficulty in improving the efficiency of PV energy conversion lies in the spectral mismatch between the energy distribution of photons in the incident solar spectrum and the bandgap of a semiconductor material. In recent years, luminescent materials, which are capable of converting a broad spectrum of light into photons of a particular wavelength, have been synthesized and used to minimize the losses in the solar-cell-based energy conversion process. In this review, we will survey recent progress in the development of spectral converters, with a particular emphasis on lanthanide-based upconversion, quantum-cutting and down-shifting materials, for PV applications. In addition, we will also present technical challenges that arise in developing cost-effective high-performance solar cells based on these luminescent materials.

1,391 citations