Nano-gap vapor sensor. - Chayanjit Ghosh; Shakir-Ul Khan; Samuel John Broadbent; Hao-Chieh Hsieh; Seungbeom Noh; Aishwaryadev Banerjee; Navid Farhoudi; Carlos H. Mastrangelo; Ryan Looper; Hanseup Kim (IEEE SENSORS, 2017)