TY - JOUR ID - SisLab3587 UR - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3587/ A1 - Duong, Anh Tuan A1 - Nguyen, Dinh Lam A1 - Nguyen, Manh Nghia A1 - Nguen, Thi Minh Hai A1 - Nguyen, Anh Duc A1 - Pham, Anh Tuan A1 - Ullah, Parman A1 - Zeeshan, Tahir A1 - Kim, Yong Soo A1 - Do, Quang Trung A1 - Nguyen, Tu A1 - Bui, Van Hao A1 - Raja, Das A1 - Pham, Thanh Huy A1 - Cho, Sunglae Y1 - 2019/// N2 - Thermoelectric figure of merit (ZT) is highly sensitive to the carrier concentration and maximizes within the narrow region of 1019?1020 cm?3. The SnSe2 single crystal is predicted to have a high ZT value with carrier concentration in the range of 1019?1020 cm?3. Here, we grew SnSe2 thin film on Al2O3 substrate by pulsed laser deposition (PLD) with post-annealing at 400 °C in Argon for 60 min. The annealed thin film shows a high thermoelectric power factor up to 8 ?W cm?1 K?2 at 220 K with a carrier concentration of 5.2 × 1019 cm?3. A hexagonal crystal structure of the SnSe2 thin film was confirmed by X-ray diffraction and Raman spectra measurements. The thin film showed an n-type semiconductor behavior. Maximum electrical conductivity and Seebeck coefficient were obtained at 220 K with the values of 210 Scm?1 and ?192 ?VK?1, respectively. PB - IOP publishing JF - Materials Research Express SN - 2053-1591 TI - High thermoelectric power factor in SnSe2 thin film grown on Al2O3 substrate AV - public ER -