To the selection committee Whom It May Concern

It is my pleasure to recommend Dr. XX for the position of Postdoctoral Fellow in your Lab. Dr. XX was my doctoral student and ranks among my very best students. I recommend him to you highly.

Next two paragraphs summarize the research work

? ? ? As a postgraduate student, Dr.XX designed and constructed several self-powered photoelectrochemical based sensing platforms. Based on the XX? heterostructure, he has been developed XX for the XX. That work was published in ACS Sensors, on which Dr. XX is a first author. By using XX heterostructure as ?XX.

? ? ? Dr. XX continued his record of excellent work as a doctoral student in my lab working on the development of XX. He combined XX sensing with XX together and developed XX, which XX (Anal. Chem.). He also has developed XX, which was submitted to Anal. Chem.

? ? ? ?In short, I give Dr. XX?my highest recommendation. He has an uncanny ability to develop more innovative and useful biosensors. I expect him to continue to be as productive and creative as he was as a student in my lab. Please feel free to contact me if I can be of any further assistance in your review of his candidacy.

Sincerely,

Professor Name:? ? XX? ? ? ???Signature(手寫)

E-mail:? XXXXXXXXX