Journal
ACS APPLIED ENERGY MATERIALS
Volume 2, Issue 4, Pages 2637-2644Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.8b02218
Keywords
hybrid solar cells; silicon nanostructure; high stability; TED; PEDOT:PSS
Funding
- JSPS Kakenhi [26246021, 26600049]
- International Center for Young Scientists (ICYS), National Institute for Materials Science (NIMS), Tsukuba, Japan
- Grants-in-Aid for Scientific Research [26600049] Funding Source: KAKEN
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Silicon nanostructure-based hybrid solar cells have attracted much attention due to their potential advantages of extremely simple device fabrication and the cost-effectiveness of their hybrid structure. These hybrid solar cells open a new research direction in new-generation photovoltaics. However, the performance of hybrid inorganic/organic solar cells tends to deteriorate because of severe problems with long-term stability. These will need to be solved before hybrid solar cells can be used successfully to harvest solar energy. To solve this issue, we describe a new high-performance hybrid Sinanotip/TEDs (zwitterionic tetrathiafulvalene-extended dicarboxylate radicals) solar cell that shows long-term stability. TED is composed of the only single-component molecule without any doping, thus providing long-lasting chemical stability combined with high conductivity. These Si-nanotips/TED hybrid solar cells are markedly more stable than Si/PEDOT:PSS hybrid solar cells, which, unless encapsulated, rapidly degrade under ambient conditions. This new TED material opens a pathway toward a new generation of organic electronics and optoelectronics devices.
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