Nanoelectronics Flexible thin film solar cells

Solar cells: we obtained flexible a-Si:H single junction solar cells deposited on PEN substrates with 5% efficiency. We want to use light trapping schemes to improve their performance, namely by controlling the roughness of the back reflector and top transparent contact. We want to develop heterojunction solar cells consisting of p-type Si nanowires covered by thin film i- and n-type Si that will have enhanced light absorption and short carrier path before extraction at the contacts