Abstract
Wurtzite semiconductor CuInS2 [CIS] has been reported in recent years. As a kind of metastable structure, it is a great challenge to synthesize pure wurtzite CIS at low temperature. In this paper, via a simple and quick solution route, we synthesize both wurtzite- and chalcopyrite-structure CIS. Well-controlled wurtzite CIS hexagonal plates are obtained when an appropriate agent is added. The influence of the used agent triethanolamine [TEA] has also been studied, and it turns out that without TEA, chalcopyrite CIS with a kind of rare morphology is formed through this method.
Highlights
Ternary I-III-VI2 semiconductors have garnered great interest due to their promising photovoltaic applications [1,2]
We find that the agent triethanolamine [TEA] plays an important role in the synthesis of WZ-CIS phase
A calculated pattern using the lattice parameters reported by Pan et al [22] has a good match to the experimental XRD pattern (Figure 1), which indicates that the products are wurtzite-structure CIS
Summary
Ternary I-III-VI2 semiconductors have garnered great interest due to their promising photovoltaic applications [1,2]. We synthesize pure and well-controlled WZ-CIS via a simple and quick solution route in a polyalcohol system under low temperature. We find that the agent triethanolamine [TEA] plays an important role in the synthesis of WZ-CIS phase.
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