• 4467 Citations
  • 36 h-Index
1988 …2020

Research output per year

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Research Output at NOVA

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Article
1989

Electron paramagnetic resonance of defects in doped microcrystalline silicon

Lavado, M., Martins, R., Ferreira, I., Lavareda, G., Fortunato, E., Vieira, M. & Guimarães, L., 1989, In : Vacuum. 39, 7-8, p. 791-794 4 p.

Research output: Contribution to journalArticle

Transport in μc-Six: Cy:Oz:H films prepared by a TCDDC system

Martins, R., Willeke, G., Fortunato, E., Ferreira, I., Vieira, M., Santos, M., Maçarico, A. & Guimarães, L., 2 Dec 1989, In : Journal of Non-Crystalline Solids. 114, PART 2, p. 486-488 3 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Tunneling in vertical μcSi/aSixCyOz: H/μcSi heterostructures

Fortunato, E., Martins, R., Ferreira, I., Santos, M., Maçarico, A. & Guimarães, L., 3 Dec 1989, In : Journal of Non-Crystalline Solids. 115, 1-3, p. 120-122 3 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)
1991

Engineering of plasma deposition systems used for producing large area a-Si:H devices

Martins, R., Ferreira, I., Carvalho, N. M. & Guimarães, L., 1991, In : Journal of Non-Crystalline Solids. 137-138, PART 2, p. 757-760 4 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)
1994

Engineering of the energy coupling in PECVD systems used to produce large area a-Si:H coatings

Martins, R. & Ferreira, I., 1994, In : Vacuum. 45, 10-11, p. 1107-1108 2 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
1995
8 Citations (Scopus)
1 Citation (Scopus)
1996

Correlation between electrical-optical and structural properties of microcrystalline silicon N type films

Martins, R., Macarico, A., Ferreira, I., Nunes, R., Bicho, A. & Fortunato, E., 1996, In : MRS Proceedings. 420, p. 807-812 6 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
4 Citations (Scopus)
1997

Highly conductive and highly transparent n-type microcrystalline silicon thin films

Martins, R., Maçarico, A., Ferreira, I., Nunes, R., Bicho, A. & Fortunato, E., 15 Jul 1997, In : THIN SOLID FILMS. 303, 1-2, p. 47-52 6 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)
8 Citations (Scopus)

Role of the gas flow parameters on the uniformity of films produced by PECVD technique

Martins, R., Macarico, A., Ferreira, I. & Fortunato, E., 1997, In : MRS Proceedings. 467, p. 609-614 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
7 Citations (Scopus)
1998

Amorphous silicon sensors: From photo to chemical detection

Fortunato, E., Malik, A., Sêco, A., Ferreira, I. & Martins, R., May 1998, In : Journal of Non-Crystalline Solids. 227-230, PART 2, p. 1349-1353 5 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Investigation of the amorphous to microcrystalline phase transition of thin film silicon produced by PECVD

Martins, R., Maçarico, A., Ferreira, I., Nunes, R., Bicho, A. & Fortunato, E., 1 Apr 1998, In : THIN SOLID FILMS. 317, 1-2, p. 144-148 5 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)
12 Citations (Scopus)
1999
3 Citations (Scopus)

New metallurgical systems for electronic soldering applications

Gonçalves, C., Ferreira, J., Fortunato, E., Ferreira, I., Martins, R., Marvão, A. P., Martins, J. I., Harder, T. & Oppelt, R., 20 Apr 1999, In : Sensors And Actuators A-Physical. 74, 1, p. 70-76 7 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Performances of a-Si: H films produced by hot wire plasma assisted technique

Martins, R., Ferreira, I., Fernandas, B. & Fortunato, E., 1999, In : Vacuum. 52, 1-2, p. 203-208 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Performances of nano/amorphous silicon films produced by hot wire plasma assisted technique

Ferreira, I., Aguas, H., Mendes, L., Fernandes, F., Fortunato, E. & Martins, R., 1999, In : MRS Proceedings. 507, p. 607-612 6 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)
2000

Flexible large area thin film position sensitive detectors

Fortunato, E., Ferreira, I., Giuliani, F. & Martins, R., 15 Nov 2000, In : Sensors And Actuators A-Physical. 86, 3, p. 182-186 5 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Improvement of a-Si: H device stability and performances by proper design of the interfaces

Martins, R., Ferreira, I., Cabrita, A. & Fortunato, E., 1 May 2000, In : Journal of Non-Crystalline Solids. 266-269 B, p. 1094-1098 5 p.

Research output: Contribution to journalArticle

7 Citations (Scopus)

Large area flexible amorphous silicon position sensitive detectors

Fortunato, E. M. C., Brida, D., Ferreira, I. M. M., Águas, H. M. B., Nunes, P., Cabrita, A., Giuliani, F., Nunes, Y., Maneira, M. J. P. & Martins, R. F. P., 2000, In : MRS Proceedings. 609, p. A1271-A1276 6 p.

Research output: Contribution to journalArticle

Nanocrystalline undoped silicon films produce by hot wire plasma assisted technique

Ferreira, I. M. M., Martins, R. F. D. P., Cabrita, A. M. F., Fortunato, E. M. C. & Vilarinho, P., 2000, In : MRS Proceedings. 609, p. A2241-A2246 6 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

New nanostructured silicon films grown by pecvd technique under controlled powder formation conditions

Martins, R., Ǎguas, H., Cabrita, A., Tonello, P., Silva, V., Ferreira, I., Portunato, E. & Guimares, L., 2000, In : Solar Energy. 69, SUPPLEMENT, p. 263-269 7 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

N-type silicon films produced by hot wire technique

Ferreira, I. M. M., Cabrita, A. M. F., Fortunato, E. M. C. & Martins, R. F. P., 2000, In : MRS Proceedings. 609, p. A651-A656 6 p.

Research output: Contribution to journalArticle

Role of the gas temperature and power to gas flow ratio on powder and voids formation in films grown by PECVD technique

Martins, R., Silva, V., Ferreira, I., Domingues, A. & Fortunato, E., Jan 2000, In : Vacuum. 56, 1, p. 25-30 6 p.

Research output: Contribution to journalArticle

20 Citations (Scopus)
6 Citations (Scopus)

Towards the improvement of the stability of a-Si:H pin devices

Martins, R., Aguas, H., Ferreira, I., Fortunato, E. & Guimares, L., 1 Dec 2000, In : Solar Energy. 69, SUPPLEMENT, p. 257-262 6 p.

Research output: Contribution to journalArticle

2001

Characterization of zinc oxide thin films deposited by rf magnetron sputtering on Mylar substrates

Fortunato, E., Nunes, P., Marques, A., Costa, D., Águas, H., Ferreira, I., Costa, M. E. V. & Martins, R., 2001, In : MRS Proceedings. 666, p. F3211-F3216 6 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)
1 Citation (Scopus)
Open Access
3 Citations (Scopus)

Nanostructured silicon films produced by PECVD

Martins, R., Águas, H., Silva, V., Ferreira, I., Cabrita, A. & Fortunato, E., 2001, In : MRS Proceedings. 664, p. A961-A966 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

New steps to improve a-Si: H device stability by design of the interfaces

Martins, R., Ferreira, I., Cabrita, A., Águas, H., Silva, V. & Fortunato, E., Mar 2001, In : Advanced Engineering Materials. 3, 3, p. 170-173 4 p.

Research output: Contribution to journalArticle

Porous silicon thin film gas sensor

Ferreira, I., Fortunato, E. & Martins, R. F. D. P., 2001, In : MRS Online Proceedings Library. 664, p. 2671-2676 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Role of ion bombardment and plasma impedance on the performances presented by undoped a-Si: H films

Martins, R., Águas, H., Ferreira, I., Silva, V., Cabrita, A. & Fortunato, E., 15 Feb 2001, In : THIN SOLID FILMS. 383, 1-2, p. 165-168 4 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)
16 Citations (Scopus)

Silicon carbide photodiodes: Schottky and PINIP structures

Cabrita, A. M. F., Pereira, L., Brida, D., Lopes, A. A. S., Marques, A. J. S., Ferreira, I., Fortunato, E. & Martins, R., 12 Dec 2001, In : Applied Surface Science. 184, 1-4, p. 437-442 6 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Silicon films produced by PECVD under powder formation conditions

Martins, R., Águas, H., Silva, V., Ferreira, I., Cabrita, A. & Fortunato, E., 2001, In : Materials Science Forum. 382, p. 21-28 8 p.

Research output: Contribution to journalArticle

Thin film position sensitive detectors based on pin amorphous silicon carbide structures

Cabrita, A., Figueiredo, J., Pereira, L., Águas, H., Silva, V., Brida, D., Ferreira, I., Fortunato, E. & Martins, R., 12 Dec 2001, In : Applied Surface Science. 184, 1-4, p. 443-447 5 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)
2002

32 Linear array position sensitive detector based on NIP and hetero a-Si: H microdevices

Martins, R., Figueiredo, J., Silva, V., Águas, H., Soares, F., Marques, A., Ferreira, I. & Fortunato, E., Apr 2002, In : Journal of Non-Crystalline Solids. 299-302, PART 2, p. 1283-1288 6 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

a-Si : H interface optimisation for thin film position sensitive detectors produced on polymeric substrates

Pereira, L. M. N., Brida, D., Fortunato, E. M. C., Ferreira, I. M. M., Águas, H. M. B., Silva, V., Costa, M. F. M., Teixeira, V. & Martins, R. F. D. P., Apr 2002, In : Journal of Non-Crystalline Solids. 299-302, PART 2, p. 1289-1294 6 p.

Research output: Contribution to journalArticle

Open Access
15 Citations (Scopus)

Characterization of aluminium doped zinc oxide thin films deposited on polymeric substrates

Fortunato, E., Nunes, P., Costa, D., Brida, D., Ferreira, I. & Martins, R., Jan 2002, In : Vacuum. 64, 3-4, p. 233-236 4 p.

Research output: Contribution to journalArticle

51 Citations (Scopus)
Open Access
11 Citations (Scopus)
8 Citations (Scopus)