Patent ID: 8628237

Claim:
A method for measuring a contacting thermal resistance of one-dimensional structures, the method comprising: making a first one-dimensional structure and a second one-dimensional structure so that the first one-dimensional structure and the second one-dimensional structure are crossed and in contact with each other to form a suspended junction, wherein the first one-dimensional structure and the second one-dimensional structure are the same material; heating a point P of the first one-dimensional structure until the first one-dimensional structure and the second one-dimensional structure reach a thermal equilibrium, wherein the point P is spaced from the suspended junction; selecting a point A and a point B on the first one-dimensional structure on the same side of the suspended junction, selecting a point C and a point D on the second one-dimensional structure on the same side of the suspended junction, detecting and calculating a first frequency difference ΔY AC of Raman spectrum characteristic peaks between the point A and the point C, detecting and calculating a second frequency difference ΔY BA of Raman spectrum characteristic peaks between the point B and the point A, and detecting and calculating a third frequency difference ΔY CD of Raman spectrum characteristic peaks between the point C and the point D, wherein the point B, the point A, the suspended junction, the point C and the point D are arranged equidistantly with a distance Δx; calculating a first temperature difference ΔT AC between the point A and the point C, calculating a second temperature difference ΔT BA between the point B and the point A, calculating a third temperature difference ΔT CD between the point C and the point D by a formula ΔT=ΔY/a, wherein the ΔT represents a temperature difference between two spaced points and the ΔY represents a frequency difference between the two spaced points, and ‘a’ is constant; calculating a fourth temperature difference ΔT j between the first one-dimensional structure and the second one-dimensional structure at the suspended junction by a formula ΔT j =ΔT AC −ΔT BA −ΔT CD ; calculating a heat flux Q j by a formula Q j =2kΔT CD /Δx, wherein the Q j represents the heat flux flowing from the first one-dimensional structure to the second one-dimensional structure through the suspended junction, and the k represents a thermal conductivity of the first one-dimensional structure; and calculating a contacting thermal resistance R j by a formula R j =ΔT j /Q j , wherein the R j represents the contacting thermal resistance between the first one-dimensional structure and the second one-dimensional structure at the suspended junction.