Studies of AlN grown by MOVPE for electronic and optoelectronic applications [Elektronische Ressource] / by Sarad Bahadur Thapa

Studies of AlN grown by MOVPE forElectronic and Optoelectronic ApplicationsDISSERTATIONto obtain the academic degree ofDOKTOR-INGENIEUR(DR.-ING.)from the Faculty of Engineering and Computer SciencesUlm UniversitybySarad Bahadur Thapafrom Kathmandu, NepalReferees: Prof. Dr. Ferdinand ScholzProf. Dr. rer. nat. Albrecht WinnackerDean of the faculty: Prof. Dr.-Ing. Michael WeberUlm, 15 July 2010AcknowledgmentThe work presented in this thesis has been carried out at the Institute of Optoelec-tronicsandMicroelectronicsTechnologyCenterofUlmUniversityduring2005-2009. IthasbeenaveryrewardingexperiencetobeamemberoftheGaNgroupledbyProf. Dr.FerdinandScholz. Thisthesiswouldnothavepossiblewithoutthetrust,theguidance,thesupportandthehelpfrommanypeopleinsideandoutsidetheuniversity.Firstofall,IwouldliketoexpressmysinceregratitudetoProf. Dr. FerdinandScholzfor giving me the opportunity to do Ph.D. in his group. He has been a truly awesomesupervisor, continuously supportive, always providing invaluable advice and vision,whileatthesametimegivingmefreedomtoexploremyownideas. Also,manythankstohimfortheintensivediscussionsandcorrectionstothiswork.IwouldliketothankProf. Dr. rer. nat. AlbrechtWinnackerofthechairofMaterialsfor Electronics and Energy Technology at the Department of Materials Science andEngineering in the Friedrich-Alexander University of Erlangen-Nur¨ nberg for givinghisvaluabletimeinmyPh.D.examinationasareferee.I am grateful to Dr.-Ing.