DOAJ Open Access 2023

In situ minority carrier lifetime via fast modulated photoluminescence

Poplawski Mateusz Silva François Vanel Jean-Charles Roca i Cabarrocas Pere

Abstrak

Modulated photoluminescence (MPL) is a powerful technique for determining the effective minority carrier lifetime (τeff) of semiconductor materials and devices. MPL is based on the measurement of phase shifts between two sinusoidal waves (minimal amplitude excitation; and PL signal). In particular, in situ τeff has been proven to be an effective measurement at showing changes within a plasma-enhanced chemical vapor deposition reactor during fabrication of c-Si solar cells. However, the required time for a single measurement, using the previous method, was 40 s. In this paper a new input signal is proposed, called Dolphin's Wave, providing a method for decreasing the required measurement period to under 2 s, using superposition, frequency sweeps, and wavelets.

Topik & Kata Kunci

Renewable energy sources

Penulis (4)

Poplawski Mateusz

Silva François

Vanel Jean-Charles

Roca i Cabarrocas Pere

Format Sitasi

APA MLA BibTeX

Mateusz, P., François, S., Jean-Charles, V., Pere, R.i.C. (2023). In situ minority carrier lifetime via fast modulated photoluminescence. https://doi.org/10.1051/epjpv/2023010

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1051/epjpv/2023010

Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.1051/epjpv/2023010
Akses: Open Access ✓