Photoluminescence properties of polycrystalline AgGaTe2

Krustok, J.; Jagomägi, Andri; Grossberg, Michael; Raudoja, J.; Danilson, Mati

doi:10.1016/j.solmat.2006.02.003

Cited by 24 publications

(19 citation statements)

References 11 publications

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“…2. 14,16 The micro-PL spectrum at T ¼ 200 K [Fig. 2(a) and 2(b)] consist of two PL bands with slightly varying peak positions when measuring from different crystals.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, there is contradictory data available concerning this PL band. [14][15][16][17] The kesterites like CZTS are considered to be quaternary analogues to the ternary chalcopyrites; however, interestingly, BT and BB emissions in kesterites have not been detected so far. The recombination processes in the presence of spatial potential fluctuations are described by the theory of heavily doped semiconductors.…”

Section: Introductionmentioning

confidence: 99%

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Microphotoluminescence study of Cu2ZnSnS4 polycrystals

et al. 2013

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Microphotoluminescence studies of Cu 2 ZnSnS 4 polycrystals were performed. At room temperature, two photoluminescence (PL) bands were detected at 1.39 and 1.53 eV and attributed to band-to-tail (BT) and band-to-band (BB) recombination, respectively. At lower temperatures, band-to-impurity recombination always dominates. The results show that the model of heavily doped semiconductors applies to Cu 2 ZnSnS 4 and that, in contrast to the ternary chalcopyrites, the BT recombination in Cu 2 ZnSnS 4 has very low intensity. The laser power dependency of the PL intensity shows that the recombination mechanism of BT and BB bands exhibits an exciton-like behavior.

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“…2. 14,16 The micro-PL spectrum at T ¼ 200 K [Fig. 2(a) and 2(b)] consist of two PL bands with slightly varying peak positions when measuring from different crystals.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microphotoluminescence study of Cu2ZnSnS4 polycrystals

et al. 2013

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“…In recent years we have studied excitonic emission in CuInS 2 , including also a very deep emission related to the isoelectronic defects [3,4]. The edge emission resulting from highly doped ternaries has been studied experimentally and theoretically in AgGaTe 2 [5], CuGaTe 2 [6], AgInTe 2 [7], CuInTe 2 [8], and in other ternaries. The ordered defect compounds (ODC) have also attracted considerable interest not only because of their potential role in high-efficiency photovoltaic devices, but also as regards the understanding of structural properties of chalcopyrite ternary compounds.…”

Section: Photoluminescencementioning

confidence: 99%

Research in solar cell technologies at Tallinn University of Technology

et al. 2008

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“…However, Cu based compounds causes shorting effect in photovoltaic devices due to its larger diffusion coefficient and there are many works to overcome these obstacles for thin film structures [7]. Therefore, other chalcopyrite materials having very similar electrical and optical properties became popular [8]. Among the several materials of this group, AgInTe 2 (AIT) and AgGaTe 2 (AGT) have proved to be stable and efficient absorber materials for polycrystalline thin film heterojunction solar cells [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%