Single-Crystal Nanowire Cesium Tin Triiodide Perovskite Solar Cell |
| |
| Authors: | Letian Dai Pere Roca i Cabarrocas Huaxia Ban Zhiguo Zhang Qiang Sun Xiongjie Li Anjie Gu Wanpeng Yang Haixuan Yu Yan Shen Mingkui Wang |
| |
| Affiliation: | 1. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China;2. Laboratoire de Physique des Interfaces et des Couches Minces, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, 91128 France |
| |
| Abstract: | This work reports for the first time a highly efficient single-crystal cesium tin triiodide (CsSnI3) perovskite nanowire solar cell. With a perfect lattice structure, low carrier trap density (≈5 × 1010 cm?3), long carrier lifetime (46.7 ns), and excellent carrier mobility (>600 cm2 V?1 s?1), single-crystal CsSnI3 perovskite nanowires enable a very attractive feature for flexible perovskite photovoltaics to power active micro-scale electronic devices. Using CsSnI3 single-crystal nanowire in conjunction with highly conductive wide bandgap semiconductors as front-surface-field layers, an unprecedented efficiency of 11.7% under AM 1.5G illumination is achieved. This work demonstrates the feasibility of all-inorganic tin-based perovskite solar cells via crystallinity and device-structure improvement for the high-performance, and thus paves the way for the energy supply to flexible wearable devices in the future. |
| |
| Keywords: | carrier mobility lead-free perovskite single-crystal nanowires solar cells |
|
|
