05314651 is referenced by 13 patents and cites 8 patents.

An improved pyroelectric material comprises a polycrystalline material doped with at least one donor element such that the polycrystalline material has a grain size less than 10 .mu.m (or 5 .mu.m) and a Figure of Merit greater than 90 nC/(cm.sup.2.K). In the preferred embodiments the polycrystalline material is barium strontium titanate or calcium-substituted barium strontium titanate. The donor element may be Nb, Ta, Bi, Sb, Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er or a combination thereof. The material may additionally be doped with an acceptor such as Co, Cu, Fe, Mn, Ru, Al, Ga, Mg, Sc, K, Na, U, In, Mg, Ni, Yb or a combination thereof to control the resistivity. Other structures and methods are also disclosed.

Title
Fine-grain pyroelectric detector material and method
Application Number
7/890891
Publication Number
5314651
Application Date
May 29, 1992
Publication Date
May 24, 1994
Inventor
Bernard M Kulwicki
North Attleboro
MA, US
Agent
Richard L Donaldson
James C Kesterson
Richard A Stoltz
Assignee
Texas Instruments Incorporated
TX, US
IPC
C04B 35/46
F27D 7/02
View Original Source