期刊
ADVANCED PHOTONICS RESEARCH
卷 3, 期 6, 页码 -出版社
WILEY
DOI: 10.1002/adpr.202100190
关键词
Cu(In,Ga)Se2; light management; light trapping; solar cells
资金
- Fundacao para a Ciencia e a Tecnologia (FCT)
- Fundo Social Europeu (FSE) [IF/00133/2015, UIDB/50025/2020, UIDP/50025/2020, UIDB/04730/2020, UIDP/04730/2020, DFA/BD/4564/2020]
- NovaCell-Development of novel Ultrathin Solar Cell Architectures for low-light, low-cost, and flexible optoelectronic device project [028075]
- FCT [029696]
- ERDF
- Operational Programme for Competitiveness and Internationalization (COMPETE 2020), under the Portugal 2020 Partnership Agreement, through the European Regional Development Fund (ERDF) [POCI-01-0247-FEDER-046109]
Light management is crucial for the expansion of CIGS technology market, as it can improve conversion efficiency and reduce costs. However, there are fabrication and architecture constraints that hinder the direct transfer of light management strategies from other photovoltaic technologies. This study analyzes the demand for light management in thin and ultrathin CIGS cells and identifies three main pathways to tackle optical losses. The review provides insights into the challenges and developments of light management architectures, presenting a research roadmap for future works in this area.
Light management strategies are of utmost importance to allow Cu(In,Ga)Se-2 (CIGS) technology market expansion, as it would enable a conversion efficiency boost as well as thinner absorber layers, increasing sustainability and reducing production costs. However, fabrication and architecture constraints hamper the direct transfer of light management architectures from other photovoltaic technologies. The demand for light management in thin and ultrathin CIGS cells is analyzed by a critical description of the optical loss mechanisms in these devices. Three main pathways to tackle the optical losses are identified: front light management architectures that assist for an omnidirectional low reflection; rear architectures that enable an enhanced optical path length; and unconventional spectral conversion strategies for full spectral harvesting. An outlook over the challenges and developments of light management architectures is performed, establishing a research roadmap for future works in light management for CIGS technology. Following the extensive review, it is expected that combining antireflection, light trapping, and conversion mechanisms, a 27% CIGS solar cell can be achieved.
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