http://iet.metastore.ingenta.com
1887

Photoelectric conversion; solar cells and arrays

More general concepts than this:

1-2 of 2 results

Filter by subject:

< Any subject

  • Physics [2]
  • Cross-disciplinary physics and related areas of science and technology [2]
  • Energy research and environmental science [2]
  • Energy conversion [2]
  • Photoelectric conversion; solar cells and arrays [2]
  • Electrical and electronic engineering [2]
  • Power systems and applications [2]
  • Direct energy conversion and energy storage [2]
  • Solar cells and arrays [2]
  • Condensed matter: structure, thermal and mechanical properties [1]
  • See more See less

Filter by content type:

Filter by publication date:

Filter by author:

< Any author

The role of graphene oxide in ZnO:Al/silicon solar cells
Author(s): L. Lancellotti, L. Sansone, E. Bobeico, M. Casalino, M. Della Noce, A. De Maria, M. Iodice, M. Giordano, P.D. Veneri
Source: 20th Italian National Conference on Photonic Technologies (Fotonica 2018), 2018, p. 49 (4 pp.) - 49 (4 pp.)
Type: ConferencePaper
+ Show details - Hide details

A widely used approach to reduce the charge recombination and improve the performance of a silicon based Schottky barrier solar cell (SBSC) is to use an interfacial layer between metal and Si. In the present work we have investigated the role of graphene oxide (GO) as interfacial layer for p doped Si (p-Si) based SBSC utilizing AZO (Aluminum doped ZnO) as transparent top contact. The not obvious compatibility of the different layers combined in the solar device results clear from the improvement of all the electrical parameters measured in the AZO/GO/p-Si solar cell respect to the simple AZO/p-Si device used as reference. In particular dark IV characterization put in evidence the majority carrier blocking properties of the GO in this type of structure, with an increment of 140 meV in the barrier height respect to the device without GO, resulting in a 100% enhancement in the final solar cell efficiency.

Add to favourites
Export citations
Graphene like materials in TCO/silicon Schottky junction solar cells
Author(s): L. Lancellotti, L. Sansone, E. Bobeico, M. Casalino, M. Della Noce, M. Iodice, M. Giordano, P.D. Veneri
Source: 18th Italian National Conference on Photonic Technologies (Fotonica 2016), 2016, p. 89 (4 .) - 89 (4 .)
Type: ConferencePaper
+ Show details - Hide details

In this work a silicon based hybrid junction solar cell with transparent conductive oxide (TCO) as top contact and including a layer composed by 3-aminopropyltriethoxysilan (APTES) and soluble graphene oxide (GO) with the structure of TCO/AGO/Si (where the layer formed by APTES and GO is referred to as AGO) was fabricated and tested. The realized structure had the typical scheme of a metal-insulator-semiconductor silicon based solar cell where the conventional metal front contact was substituted with a ZnO:Al (AZO) transparent layer and a low-cost and easy-to-fabricate insulating layer (AGO) replaced the conventional interfacial SiOx layer. The analysis of the photovoltaic parameters allowed to put in evidence the beneficial effect of the fully transparent top contact as well as the role of the AGO interfacial layer. In particular, the measured external quantum efficiency of the AZO/AGO/Si solar cell reached values above 80% in the central part of the visible spectrum, with short circuit current of about 30mA/cm2, while the power conversion efficiency resulted more than two times higher than that of the device without the incorporation of the AGO layer. The coupling, for the first time at our knowledge, of TCO layer and a GO layer in a silicon based solar cell, opens the door for several applications in photovoltaic and other optoelectronic devices.

Add to favourites
Export citations
Items per page 20 | 50 | 100
Print this page
This is a required field
Please enter a valid email address