Loading...
Please wait, while we are loading the content...
Similar Documents
Colloidal quantum dot solar cell electrical parameter non-destructive quantitative imaging using high-frequency heterodyne lock-in carrierography and photocarrier radiometry
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hu, Lilei Liu, Mengxia Mandelis, Andreas Sun, Qiming Melnikov, Alexander Sargent, Edward. H. |
| Copyright Year | 2018 |
| Abstract | Abstract Colloidal quantum dot (CQD) solar cells with a certified power conversion efficiency of 11.28% were characterized using camera-based heterodyne lock-in carrierography (HeLIC) and photocarrier radiometry (PCR). Carrier lifetime, diffusivity, and diffusion and drift length of a CQD solar cell were imaged in order to investigate carrier transport dynamics, as well as solar cell homogeneity and the effects of Au contacts on carrier transport dynamics. Using room temperature HeLIC imaging which has also been demonstrated using PCR measurements, shorter carrier lifetimes (ca. 0.5 μs) were found in Au contact regions that can be attributed to enhanced non-radiative recombinations through trap states at Au/CQD interfaces. This imaging methodology shows strong potential for elucidating the energy loss physics of CQD solar cells and for industrial non-destructive large-area photovoltaic device characterization. |
| Starting Page | 405 |
| Ending Page | 411 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.solmat.2017.09.020 |
| Volume Number | 174 |
| Alternate Webpage(s) | https://www.light.utoronto.ca/edit/files/1-s2_0-s0927024817305093-main_hua.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.solmat.2017.09.020 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
