Repozitorij Univerze v Novi Gorici

Iskanje po repozitoriju
A+ | A- | Pomoč | SLO | ENG

Iskalni niz: išči po
išči po
išči po
išči po
* po starem in bolonjskem študiju


1 - 5 / 5
Na začetekNa prejšnjo stran1Na naslednjo stranNa konec
Deposition and possible influence of a self-cleaning thin TiO[sub]2 [over] (SiO [sub] 2) film on a photovoltaic module efficiency
Anja Soklič, Marko Kete, Urška Lavrenčič Štangar, Minoo Tasbihi, 2014, objavljeni znanstveni prispevek na konferenci

Najdeno v: ključnih besedah
Povzetek najdenega: ... solar cells, fotokataliza, self-cleaning surface, ...
Ključne besede: solar cells, fotokataliza, self-cleaning surface
Objavljeno: 16.06.2016; Ogledov: 2875; Prenosov: 15
URL Polno besedilo (0,00 KB)

Fabrication and characterization of ZnO and GaN devices for electronic and photonic applications
Fei Tong, 2014, doktorska disertacija

Opis: The research work presented in this book is based on two direct and wide band gap semiconductors: ZnO and GaN. On the first part of the book, the synthesis of ZnO nanorod array via the low temperature solution growth method was discussed. Due to the high surface-to-volume ratio of ZnO nanorod, to alleviate the some of the drawbacks such as carrier mobility and thickness dilemma of organic solar cells, ZnO nanorod array were integrated into organic solar cells. Power conversion efficiency (η) of 1.8% is achieved in our ZnO nanorods integrated bulk heterojunction organic solar cells on flexible In2O3-PET substrates. On the second part of the book, the fabrication and characterization of Aluminum gallium nitride/gallium nitride high electron mobility transistors (AlGaN/GaN HEMTs) were discussed. Device testing and characterization under both room temperature and high temperature up to 300 °C were performed. The results show that the device can operate even at 300 °C with minimal degradation.
Najdeno v: ključnih besedah
Povzetek najdenega: ...carrier mobility and thickness dilemma of organic solar cells, ZnO nanorod array were integrated into...
Ključne besede: ZnO nanorod array, organic-inorganic solar cells, AlGaN/GaN HEMTs.
Objavljeno: 25.01.2017; Ogledov: 2101; Prenosov: 0
.pdf Polno besedilo (8,57 MB)

Interface phenomena between CdTe and ZnTe: Cu back contact
Alessio Bosio, Roberta Ciprian, Alessio Lamperti, I Rago, Barbara Ressel, Greta Rosa, Matija Stupar, E Weschke, 2018, izvirni znanstveni članek

Opis: Thin film technology has reached a maturity to achieve conversion efficiencies of the order of 22%. Among thin films, CdTe-based photovoltaic modules represent 80% of the total production. Nonetheless, some issues concerning back-contact are still open. In industrial process a chemical etching is required in order to make the CdTe film surface rich in Te. The Te-excess is fundamental in order to form a stable telluride compound with copper and to obtain an ohmic, low-resistance back-contact. Moreover, the Te-excess hinders the fast diffusion of copper in CdTe and its achievement of the junction region, preventing the destruction of the device. In this paper we study a ZnTe:Cu buffer layer deposited onto a CdTe film, characterized by a naturally Te-rich surface obtained with a particular chlorine heat treatment without any chemical etching. Copper diffusion and the CdTe/ZnTe:Cu interface were studied by x-ray
Najdeno v: ključnih besedah
Povzetek najdenega: ... solar cells, CdTe, ZnTe:Cu back contact...
Ključne besede: solar cells, CdTe, ZnTe:Cu back contact
Objavljeno: 29.11.2018; Ogledov: 1627; Prenosov: 0
.pdf Polno besedilo (2,23 MB)

A pyrrolopyridazinedione-based copolymer for fullerene-free organic solar cells
Astrid-Caroline Knall, Samuel Rabensteiner, Sebastian F. Hoefler, Matiss Reinfelds, Mathias Hobisch, Heike M. A. Ehmann, Nadiia Pastukhova, Egon Pavlica, Gvido Bratina, Illie Hanzu, Shuguang Wen, Renqiang Yang, Gregor Trimmel, Thomas Rath, 2021, izvirni znanstveni članek

Opis: The recent success of non-fullerene acceptors in organic photovoltaics also entails a change in the requirements to the polymer donor in terms of optical and morphological properties leading to a demand for novel conjugated polymers. Herein, we report on the synthesis of a 1,4-bis-(thiophene-2-yl)-pyrrolopyridazinedione based copolymer with 2-ethylhexyl substituents on the pyrrolopyridazinedione moiety. A 2D conjugated benzodithiophene (BDT) was chosen as comonomer. The resulting copolymer T-EHPPD-T-EHBDT showed a molecular weight of 10.2 kDa, an optical band gap of 1.79 eV, a hole mobility of 1.8 × 10−4 cm2 V−1 s−1 and a preferred face-on orientation with regard to the substrate. The comparably wide band gap as well as the determined energy levels (HOMO: −5.47 eV, LUMO: −3.68 eV) match well with the narrow band gap non-fullerene acceptor ITIC-F, which was used as the acceptor phase in the bulk heterojunction absorber layers in the investigated solar cells. The solar cells, prepared in inverted architecture, revealed power conversion efficiencies up to 7.4% using a donor:acceptor ratio of 1 : 1 in the absorber layer.
Najdeno v: ključnih besedah
Ključne besede: non-fullerene solar cells, charge transport, charge mobility, power conversion efficiency
Objavljeno: 27.01.2021; Ogledov: 329; Prenosov: 0
.pdf Polno besedilo (2,68 MB)

Iskanje izvedeno v 0 sek.
Na vrh