Photocurrent spectroscopy of perovskite solar cells over a wide temperature range from 15 to 350 K
Solar cells based on metal halide perovskite thin films show great promise for energy generation in a range of environments from terrestrial installations to space applications. Here we assess the device characteristics of the prototypical perovskite solar cells based on methylammonium lead triiodid...
| Príomhchruthaitheoirí: | , , , , , |
|---|---|
| Formáid: | Journal article |
| Foilsithe / Cruthaithe: |
American Chemical Society
2017
|
| _version_ | 1826291755947917312 |
|---|---|
| author | Patel, J Lin, Q Zadvorna, O Davies, C Herz, L Johnston, M |
| author_facet | Patel, J Lin, Q Zadvorna, O Davies, C Herz, L Johnston, M |
| author_sort | Patel, J |
| collection | OXFORD |
| description | Solar cells based on metal halide perovskite thin films show great promise for energy generation in a range of environments from terrestrial installations to space applications. Here we assess the device characteristics of the prototypical perovskite solar cells based on methylammonium lead triiodide (CH3NH3PbI3) over a broad temperature range from 15 to 350 K (−258 to 77 °C). For these devices, we observe a peak in the short-circuit current density and open-circuit voltage at 200 K (−73 °C) with decent operation maintained up to 350 K. We identify the clear signature of crystalline PbI2 contributing directly to the low-temperature photocurrent spectra, showing that PbI2 plays an active role (beyond passivation) in CH3NH3PbI3 solar cells. Finally we observe a blue-shift in the photocurrent spectrum with respect to the absorption spectrum at low temperature (15 K), allowing us to extract a lower limit on the exciton binding energy of 9.1 meV for CH3NH3PbI3. |
| first_indexed | 2024-03-07T03:04:13Z |
| format | Journal article |
| id | oxford-uuid:b1f5c5b2-ddf6-4ea2-a04e-f8148fa73c79 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T03:04:13Z |
| publishDate | 2017 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:b1f5c5b2-ddf6-4ea2-a04e-f8148fa73c792022-03-27T04:08:08ZPhotocurrent spectroscopy of perovskite solar cells over a wide temperature range from 15 to 350 KJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b1f5c5b2-ddf6-4ea2-a04e-f8148fa73c79Symplectic Elements at OxfordAmerican Chemical Society2017Patel, JLin, QZadvorna, ODavies, CHerz, LJohnston, MSolar cells based on metal halide perovskite thin films show great promise for energy generation in a range of environments from terrestrial installations to space applications. Here we assess the device characteristics of the prototypical perovskite solar cells based on methylammonium lead triiodide (CH3NH3PbI3) over a broad temperature range from 15 to 350 K (−258 to 77 °C). For these devices, we observe a peak in the short-circuit current density and open-circuit voltage at 200 K (−73 °C) with decent operation maintained up to 350 K. We identify the clear signature of crystalline PbI2 contributing directly to the low-temperature photocurrent spectra, showing that PbI2 plays an active role (beyond passivation) in CH3NH3PbI3 solar cells. Finally we observe a blue-shift in the photocurrent spectrum with respect to the absorption spectrum at low temperature (15 K), allowing us to extract a lower limit on the exciton binding energy of 9.1 meV for CH3NH3PbI3. |
| spellingShingle | Patel, J Lin, Q Zadvorna, O Davies, C Herz, L Johnston, M Photocurrent spectroscopy of perovskite solar cells over a wide temperature range from 15 to 350 K |
| title | Photocurrent spectroscopy of perovskite solar cells over a wide temperature range from 15 to 350 K |
| title_full | Photocurrent spectroscopy of perovskite solar cells over a wide temperature range from 15 to 350 K |
| title_fullStr | Photocurrent spectroscopy of perovskite solar cells over a wide temperature range from 15 to 350 K |
| title_full_unstemmed | Photocurrent spectroscopy of perovskite solar cells over a wide temperature range from 15 to 350 K |
| title_short | Photocurrent spectroscopy of perovskite solar cells over a wide temperature range from 15 to 350 K |
| title_sort | photocurrent spectroscopy of perovskite solar cells over a wide temperature range from 15 to 350 k |
| work_keys_str_mv | AT patelj photocurrentspectroscopyofperovskitesolarcellsoverawidetemperaturerangefrom15to350k AT linq photocurrentspectroscopyofperovskitesolarcellsoverawidetemperaturerangefrom15to350k AT zadvornao photocurrentspectroscopyofperovskitesolarcellsoverawidetemperaturerangefrom15to350k AT daviesc photocurrentspectroscopyofperovskitesolarcellsoverawidetemperaturerangefrom15to350k AT herzl photocurrentspectroscopyofperovskitesolarcellsoverawidetemperaturerangefrom15to350k AT johnstonm photocurrentspectroscopyofperovskitesolarcellsoverawidetemperaturerangefrom15to350k |