Highly reversible switching from P- to N-type NO₂ sensing in a monolayer Fe₂O₃ inverse opal film and the associated P–N transition phase diagram - Dai, Zhengfei; Lee, Chul-Soon; Tian, Yahui; Kim, Il-Doo; Lee, Jong-Heun (Journal of materials chemistry. A, Materials for energy and sustainability, 2015)
Keywords: environmental impact; ferric oxide; gases; human health and safety; nitrogen dioxide; opal; porous media; temperature; tin dioxide